Disk Detective Talk
It might well be a YSO.
The Tisserand paper is about a catalog that is enriched in R CrBs, not 100% R CrBs. So it's not entirely clear that this is an R CrB.
Somewhat asymmtrically extended in WISE 4. I'm a bit worried about confusion with that blob on the right--a galaxy?
I don't see any background objects here! Looks like a good candidate to me.
background objects at 2 o'clock and 6 o'clock in DSS2 Blue and Red
Has a nice dust ring imaged with Gemini!
Imaged with ALMA
We don't go by IRSA---and I don't see any background objects here! Looks good to me. LSP variables are typically giants, though.
Known debris disk with Gas and an ALMA image.
This is PDS 110, an eclipsing disk!
Spectroscopic binary
Radius = 11.056 R_Solar, Mass = 1.262 M_Solar, and Distance = 738 pc making it a giant or supergiant.
according to the the K2 ecliptic plane input catalog (EPIC), this star has T_eff = 4663K, Fe/H = -0.082,
I don't like how I see fuzzy background stuff at W3 and W4. I think we should call this extended.
Looks slightly elongated in K band
And now Murphy, Mamajek & Bell have published a spectrum of it! https://arxiv.org/abs/1703.04544
This one is trash. it's extended beyond the red circle in W4.
That W4 excess looks significant to me.
Here's our paper about this star! https://arxiv.org/abs/1610.05293
It shifts--but all the other stars shift too, so that's ok!
shifts slightly between DSS images
This is a real #W1-dropout. Not a good candidate. The W4 excess is not statistically significant.
I think it's reflections allright--but inside the telescope!
Possible member of the Pleiades!
Good candidate! Multiple objects only count if they are within the red circle.
Art, where do you see indication of a binary system? I don't see it in the literature.
looks good to me!
This object is a good candidate. The background objects in AladinLite are outside the red circle.
extended beyond red circle at WISE 4
extended beyond circle
extends outside the red circle at WISE 4
I'd call this a "moves off the crosshairs"
This object is mentioned in the MacDonald paper--but we don't really trust that study. I'm worried about that WISE 3/4 offset
background object at 10 o'clock
WISE 1 dropout
I don't see a WISE 1 dropout!
W1 - W4 < 0.9
multiple objects in red circle
bad pointing in 2MASS
extended in WISE 4
horrible saturation at WISE 1
Score! This looks like it could be a new M dwarf debris disk. WISE 1 is saturated. But there's clearly still excess at WISE 4
DA = white dwarf with hydrogen absorption lines
WISE 1 band dropout. WISE 4 -WISE 1 excess might not be real
WISE 1 dropout---I think there's no real WISE 4 excess
Very saturated in WISE! anyway this is Multiple Objects in Red Circle
WISE 1 dropout--the WISE 4- WISE 1 color is probably bad 😦
good candidate!
looks saturated at WISE 1. I'm not sure the WISE 1 excess is real
a bit extended at WISE 4
Why does SIMBAD call this a star? There are no references. SED is very very red. I'm thinking a high z galaxy.
I'm a bit concerned about the background object at 4 oclock that seems to persist in Red and IR.
Reddening!
The threshold for #multiple is any object you can see in two bands. Missed multiples is our #1 error. So crank up your monitors!
#multipleobjects At 6'oclock.
Looks to me like it moves off the crosshairs at WISE 1. #movesoffcrosshairs
I see background objects at DSS blue and red, but they move from band to band, suggesting they are noise, so that's ok.
Racked up like a deuce, another roller in the night...
I see background objects at 1 o'clock and 4'oclock that persist in two bands: DSS Blue and Red. So I'd call this "multiple objects".
Nice work, Glenn! The advanced user group awaits... diskdetectives@gmail.com
Cool!
Vizier says it's an SR=semiregular variable see http://www.sai.msu.su/gcvs/gcvs/iii/vartype.txt
Yes, and it's clearly elongated in DSS.
This object also seems to be saturated at WISE 1 (note the funny shape) so I'm not sure I trust the WISE 4-WISE 1 color.
It's marginal (I see some background objects at 6,9, and 12 oclock that might be drifting into the circle).
Right you are, TED91. Stick with it, kalorix!
There's a background object at 10 o'clock. Also, a SARG B is a kind of pulsating red giant--not so interesting for our search.
OK--we solved the mystery. This is one of the objects used in the tutorial! Sorry, we probably should have removed it from classification.
Yes! Looks like a galaxy. You're getting the hang of this, kalorix!
Also, this one extends beyond the circle at WISE 4. I think that's probably some interstellar matter in the foreground or background.
If you click "More Info on SIMBAD" you can see that this a "Be" star, a kind of massive star that excretes material into a disk.
This one doe not look "extended" to me. But see that faint background object at 10 o'clock? It's "multiple objects in circle".
Uh oh. This looks like a glitch! I'll check with the data people.
That's funny--I wonder if BD+30 748 and HD 282727 are really the same object? I don't see two separate stars in the images, do you?
#goodcandidate but it looks saturated at WISE 1. I fear that may be messing up the SED and the WISE 4- WISE 1 color.
Multiple Objects in Red Circle. Background object at 8 o'clock!
Indeed, it looks like it's extended beyond the red circle at WISE 4.
This shifts off the crosshairs, clearly at WISE 3 and also at WISE 4.
Wow! That's a royal mess!
There's a faint background object at 1 o'clock in DSS Blue and DSS Red; two bands so you know it's real. So this is a "Multiple Objects"
Yes, it's slightly saturated in the DSS IR band (see http://blog.diskdetective.org/2014/12/29/disk-detective-glossary/ )
That's a beautiful star-like SED! But alas, at WISE 4 you can see that it's a star sitting on a bunch of background interstellar dust.
This one is marginal, leonie. It shifts slightly and it's slightly extended out of the circle at WISE 4.
Those are faint stars or galaxies in the background. The slight shifting is OK here because you can see those background stars shift too!
http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1994A%26AS..103..503B&db_key=AST&nosetcookie=1
This appears to be a molecular cloud, not a star or a galaxy!
i see multiple objects that persist in 2-3 bands.
I agree--it looks extended in DSS
beautiful!
I think that's just noise! This looks good to me.
background object at 6 o'clock
There is that little blob at 4'oclock in DSS2 IR. But it only appears in one band, so it's probably noise. So I think this subject is OK.
not a good candidate. background object at 4 o'clock
background object at 1 o'clock
I'm concerned that the source seems to become extended at longer wavelengths in the direction of the object at 8 oclock
yes it moves off the crosshairs, but so do all the rest of the stars, so I think it's OK
lots of nebulosity at WISE 4
Very bad background object contamination on this one
The SED looks like a reddened YSO or possibly a galaxy
extended in all the DSS bands
It shifts around in DSS--but so do all the other stars. So it's ok.
That's a nice SED! And the object is nice and bright. Good one.
nebulosity at W4
background object at 8 o'clock
Yes--though we'd have to fly WISE again to get new data!
WISE 3 and WISE 4 backgrounds look high
background object at 9 o'clock
possible contaminant at 8 o'clock
galaxy or blend
big saturation problems in W1
I think it's close enough.
It's next to GR Tauri. Probably used as a calibrator star when people observe GR Tauri
but i don't see much contamination. I think this is is pretty solid
companion is at 35 arcsec according to SIMBAD
that looks like a deficit at W4, not an excess. I think we have saturation problems at W1.
Yes I think that's from saturation in W1. Otherwise it looks good. Shell stars often turn out to be debris disk stars!
10.9 day period
moves off crosshairs. probably a blend
mentioned in Kennedy & Wyatt 2013
background object outside circle at 4 o clock
maybe some faint nebulosity at W4, but not too bad
looks good to me
maybe a hint of nubulosity at W4, but just a touch
doesn't look contaminated to me--this is a good one!
I don't see any contamination. Looks good to me!
looks like a good candidate to me!
very good candidate!
Is W3 dropping out a bit?
I don't think there's an excess; it looks like it's just saturated at W1--
does that SED fall off too fast in the near IR to be a star?
The image shifts at W3. I fear this may be a blend
SED looks like a galaxy
shifts off the crosshairs, I think this is a blend
background object ad 6 oclock in DSS
Multiple objects in circle
background object at 10 o'clock in DSS blue and red
background objects at 2 o'clock and 9 o'clock
background object at 12 o'clock
background object at 4 oclock in DSS R and DSS IR
Beta Pictoris is a Delta Scuti variable!
W4 image looks contaminated
W1 image looks contaminated
Looks like it's saturated at W1
so bright it hurts my eyes! The circle and spikes you see in DSS are image artifacts.
A bit messy at W4, but maybe OK
SED looks a bit like a blend
pointing shift between DSS Blue and DSS Red--it's all the stars, so it's OK
multiple objects in circle
very reddened source
extends beyond circle at W4, background object in circle at 3 o'clock in DSS
No, multiple objects in circle
very faint background object at about 6 o'clock in DSS, maybe part of a diffraction spike?
slight hint of extension/photocenter shift. probably still worth following up
multiple objects in circle in DSS
That's a blend---look at WISE 1
the SED looks like a YSO. But I'm worried about the background object at 1 o'clock in DSS
looks like that object at 9 o'clock is bleeding into WISE 4
WISE 2 and 3 seem to show some multiple sources. The SED looks like a galaxy.
looks extended beyond circle at WISE 4
the W4 excess looks insignificant
with V=12.1, K=8.7, this is probably an M star of some kind.
multiple objects in circle. bg object at 8 o'clock
bg object at 6 o clock
bg object at 10 o clock
extended beyond circle, may have ism contamination
extends beyond circle
marginal---possible contaminant at 9 o'clock
moves off crosshairs in WISE 1.
DSS Blue and Red sure are noisy
red star, W4 excess is small
red, and W4 excess looks marginal
extended beyond circle in WISE4.
multiple objects in circle at Blue DSS band
good candidate
very red, but clear W4 excess
maybe extended a bit beyond circle. marginally good candidate.
given how red this is i think the W4-W1 excess may be insignificant.
Bright background object at 5 oclock in DSS just barely outside the circle. That makes this only a marginal candidate.
A marginal candidate. There's a very faint background object in the red circle at about 7 o'clock.
funny that it seems to have substantial proper motion, though, and a starlike SED
this object looks extended.
moves way off the crosshairs. this is not a good candidate
Type SR +L. That's a kind of red giant/supergiant that makes its own dust.
wow--that's a big 22 micron excess
I think we probably should discard this one--we can't trust the WISE 4 photometry.
Ooo--there's some kind of background object right on the red circle that might be contaminating the SED.
not a good candidate. object moves off crosshairs in W4.
Object moves off crosshairs. This is not a good candidate.
it could be a binary--but it could also be a background galaxy.
not a good candidate: multiple objects in circle
not a good candidate: it moves off the crosshairs.
shifts around--I think this is a blend
elongated at K, WISE1 and WISE 2
There's a second object int he red circle. This is a #blend, not a good candidate.
The image shifts from left to right as you go from short wavelengths to long. It's probably a blend.
The image shifts fro left to right as you go from short to long wavelengths. That makes me think this is a #blend
There's a background object in the red circle. This is not a good candidate.
something fishy in WISE 1
I wonder if that 22 micron excess is spillover from the bright star to the upper right.
This famous debris disk is called the "blue needle" or sometimes, the "grey needle" because it's edge-on and very lopsided.
I bet the excess is caused by the blend.
interesting. the SED looks like a blend--but the other two objects don't seem to be causing it.
That's definitely a blended pair of somethings.
Beautiful Planetary Nebula! I wonder if that's a bipolar outflow there in DSS2 Red.
I agree!
Yes, you can see that it's elongated in the DSS images.
That's a pretty edge-on galaxy in the upper left. Too bad it seems to leak into the red circle at WISE 3 and 4, contaminating the SED..
That SED looks pretty odd. I bet this is an AGN.
Right, it's 113 arcsec away! off the picture.
Probably a cosmic ray hit. This is a bad candidate, btw--you can see that it's oval in Blue, Red, IR, J.
Yes, it's a galaxy. You can tell from the references in SIMBAD.
Looks like a good candidate to me!
It's because the resolution gets worse at W4. http://blog.diskdetective.org/2014/02/04/why-do-the-stars-seem-to-grow-at-longer-wavelengths/
Awesome!
This is why we don't completely rely on SIMBAD!
Beautiful!
it's a known debris disk with warm and cold dust components--like the asteroid belt and the Kuiper belt. Nice job!
Yes! Very nice! Proves we are doing the right thing!
It's a known IR source--but not a known disk. If it were a known disk, you'd learn that by reading the References on SIMBAD. OK candidate!
This star is saturating the detector---you're seeing noise associated with how the different pixels saturate differently.
RR Lyrae stars are important ways of measuring distances in astronomy.
SIMBAD thinks it's an AGN.
SED looks like star+disk. Phan-Bao et al, Astron. Astrophys., 380, 590-598 (2001) suggest it's a M star. This is what we're looking for!
That's funny! I'm not sure what's going on there.
Yes, a galaxy!
The images are fine, but the SED says: galaxy.
Alas, the SED looks more like a galaxy of some kind.
A bright G giant, saturating the detectors!
I'm not wild about this candidate--it's only slightly elongated, but it's elongated in the same way from K through 22microns. I say #galaxy
The SED is kind of suspiciously galaxy-ish.
SDSS is the Sloan Digital Sky Survey. This is a good candidate--I wonder why SIMBAD thinks it's a galaxy.
That is a funky and rare object: a binary where both stars are distorted into non-sphereical shapes by each other's gravity.
That one is a tough call, @DNiergarth. I agree it's a bit smeared. But maybe OK.
It's a little elongated in DSS--probably indeed a galaxy.
Maybe three galaxies!
I bet that's why it's off the crosshairs in DSS and 2MASS--because of the high proper motion.
I think it's a #galaxy, @jacko99. See how it's elongated in DSS?
Looks good to me!
@ElisabethB You seem to have discovered a caterpillar galaxy---
Yes--it's a good candidate. But check out this article on SEDs: http://blog.diskdetective.org/2014/02/01/spectral-energy-distributions-seds/
LOL
Otherwise, it's a good candidate!
Yes--a galaxy. You can see how it's extended in DSS.
A star---in the middle of a galaxy. Hey, nobody said this would be easy.
oww! turn it down! That's a bright A star, about 160 parsecs away. A stars make up most of the sky's brightest stars (by eye)
Looks like it might be a "runaway star". The 3.4 micron image may be saturated. If there are two objects, you'll see it in multiple bands.
Yes, and a good candidate.
RIght! SIMBAD tells us there's a bright star 98 arcsec away.
Nice one!
@Vinokurov Why do you say that? It looks like a good candidate to me. Maybe slightly non-round. But I think that's caused by the noise.
Maybe it's a pair of interacting galaxies. Like these: http://en.wikipedia.org/wiki/Antennae_Galaxies
A galaxy....full of stars. Billions and Billions of stars.
The object to the lower right appears to be dominating the image stretch at some wavelengths, overwhelming the central object.
Yes indeed. Look how in DSS2 IR, all three objects have the same distorted shape. That's caused by the atmosphere.
Yes indeed! An asteroid or maybe an airplane.
Yes, it's not very round in WISE 4. And the SED looks like week-old roadkill.
It's slightly non-round in the 2MASS images, but that's probably caused by the background noise. OTOH the SED doesn't look much like a disk
It's very non-circular in WISE 1 and WISE 2, and continues to be offset in WISE 3 and WISE 4. It looks more like a pair of objects to me.
Just looking at the images, I might think it was marginally a good candidate. But the SED is a train wreck!
The galaxy is probably contaminating that SED. So it's not a good candidate, I'm afraid.
That's another bright object, #saturating the DPOSS detectors.
That's a bright star, and it's #saturating the detector.
Bane of our existence! (sorry, GalaxyZoo)
And a handsome one!
BTW, you can't always trust the classification at the top of the SIMBAD page. But Debbie's right; this ain't no disk.
I'd say it's still pretty much on the crosshairs the whole time too.
Wow, that is a beauty!
I think TED91 is talking about the stripe in DSS Blue. Yes, an artifact indeed.
Hi everybody!
It might well be a YSO.
The Tisserand paper is about a catalog that is enriched in R CrBs, not 100% R CrBs. So it's not entirely clear that this is an R CrB.
Somewhat asymmtrically extended in WISE 4. I'm a bit worried about confusion with that blob on the right--a galaxy?
I don't see any background objects here! Looks like a good candidate to me.
background objects at 2 o'clock and 6 o'clock in DSS2 Blue and Red
Has a nice dust ring imaged with Gemini!
Imaged with ALMA
We don't go by IRSA---and I don't see any background objects here! Looks good to me. LSP variables are typically giants, though.
Known debris disk with Gas and an ALMA image.
This is PDS 110, an eclipsing disk!
Spectroscopic binary
Radius = 11.056 R_Solar, Mass = 1.262 M_Solar, and Distance = 738 pc making it a giant or supergiant.
according to the the K2 ecliptic plane input catalog (EPIC), this star has T_eff = 4663K, Fe/H = -0.082,
I don't like how I see fuzzy background stuff at W3 and W4. I think we should call this extended.
Looks slightly elongated in K band
And now Murphy, Mamajek & Bell have published a spectrum of it! https://arxiv.org/abs/1703.04544
This one is trash. it's extended beyond the red circle in W4.
That W4 excess looks significant to me.
Here's our paper about this star! https://arxiv.org/abs/1610.05293
It shifts--but all the other stars shift too, so that's ok!
shifts slightly between DSS images
This is a real #W1-dropout. Not a good candidate. The W4 excess is not statistically significant.
This is a real #W1-dropout. Not a good candidate. The W4 excess is not statistically significant.
I think it's reflections allright--but inside the telescope!
Possible member of the Pleiades!
Good candidate! Multiple objects only count if they are within the red circle.
Art, where do you see indication of a binary system? I don't see it in the literature.
looks good to me!
This object is a good candidate. The background objects in AladinLite are outside the red circle.
extended beyond red circle at WISE 4
extended beyond circle
extends outside the red circle at WISE 4
I'd call this a "moves off the crosshairs"
This object is mentioned in the MacDonald paper--but we don't really trust that study. I'm worried about that WISE 3/4 offset
looks good to me!
background object at 10 o'clock
WISE 1 dropout
WISE 1 dropout
WISE 1 dropout
I don't see a WISE 1 dropout!
W1 - W4 < 0.9
multiple objects in red circle
bad pointing in 2MASS
extended in WISE 4
WISE 1 dropout
horrible saturation at WISE 1
Score! This looks like it could be a new M dwarf debris disk. WISE 1 is saturated. But there's clearly still excess at WISE 4
DA = white dwarf with hydrogen absorption lines
WISE 1 band dropout. WISE 4 -WISE 1 excess might not be real
WISE 1 dropout
WISE 1 dropout---I think there's no real WISE 4 excess
Very saturated in WISE! anyway this is Multiple Objects in Red Circle
WISE 1 dropout--the WISE 4- WISE 1 color is probably bad 😦
good candidate!
looks good to me!
looks saturated at WISE 1. I'm not sure the WISE 1 excess is real
a bit extended at WISE 4
Why does SIMBAD call this a star? There are no references. SED is very very red. I'm thinking a high z galaxy.
I'm a bit concerned about the background object at 4 oclock that seems to persist in Red and IR.
Reddening!
The threshold for #multiple is any object you can see in two bands. Missed multiples is our #1 error. So crank up your monitors!
#multipleobjects At 6'oclock.
Looks to me like it moves off the crosshairs at WISE 1. #movesoffcrosshairs
I see background objects at DSS blue and red, but they move from band to band, suggesting they are noise, so that's ok.
Racked up like a deuce, another roller in the night...
I see background objects at 1 o'clock and 4'oclock that persist in two bands: DSS Blue and Red. So I'd call this "multiple objects".
Nice work, Glenn! The advanced user group awaits... diskdetectives@gmail.com
Cool!
Vizier says it's an SR=semiregular variable
see http://www.sai.msu.su/gcvs/gcvs/iii/vartype.txt
Yes, and it's clearly elongated in DSS.
This object also seems to be saturated at WISE 1 (note the funny shape) so I'm not sure I trust the WISE 4-WISE 1 color.
It's marginal (I see some background objects at 6,9, and 12 oclock that might be drifting into the circle).
Right you are, TED91. Stick with it, kalorix!
There's a background object at 10 o'clock. Also, a SARG B is a kind of pulsating red giant--not so interesting for our search.
OK--we solved the mystery. This is one of the objects used in the tutorial! Sorry, we probably should have removed it from classification.
Yes! Looks like a galaxy. You're getting the hang of this, kalorix!
Also, this one extends beyond the circle at WISE 4. I think that's probably some interstellar matter in the foreground or background.
If you click "More Info on SIMBAD" you can see that this a "Be" star, a kind of massive star that excretes material into a disk.
This one doe not look "extended" to me. But see that faint background object at 10 o'clock? It's "multiple objects in circle".
Uh oh. This looks like a glitch! I'll check with the data people.
That's funny--I wonder if BD+30 748 and HD 282727 are really the same object? I don't see two separate stars in the images, do you?
#goodcandidate but it looks saturated at WISE 1. I fear that may be messing up the SED and the WISE 4- WISE 1 color.
Multiple Objects in Red Circle. Background object at 8 o'clock!
Indeed, it looks like it's extended beyond the red circle at WISE 4.
This shifts off the crosshairs, clearly at WISE 3 and also at WISE 4.
Wow! That's a royal mess!
There's a faint background object at 1 o'clock in DSS Blue and DSS Red; two bands so you know it's real. So this is a "Multiple Objects"
Yes, it's slightly saturated in the DSS IR band (see http://blog.diskdetective.org/2014/12/29/disk-detective-glossary/ )
That's a beautiful star-like SED! But alas, at WISE 4 you can see that it's a star sitting on a bunch of background interstellar dust.
This one is marginal, leonie. It shifts slightly and it's slightly extended out of the circle at WISE 4.
Those are faint stars or galaxies in the background. The slight shifting is OK here because you can see those background stars shift too!
http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1994A%26AS..103..503B&db_key=AST&nosetcookie=1
This appears to be a molecular cloud, not a star or a galaxy!
i see multiple objects that persist in 2-3 bands.
I agree--it looks extended in DSS
beautiful!
I think that's just noise! This looks good to me.
background object at 6 o'clock
There is that little blob at 4'oclock in DSS2 IR. But it only appears in one band, so it's probably noise. So I think this subject is OK.
not a good candidate. background object at 4 o'clock
background object at 1 o'clock
I'm concerned that the source seems to become extended at longer wavelengths in the direction of the object at 8 oclock
yes it moves off the crosshairs, but so do all the rest of the stars, so I think it's OK
lots of nebulosity at WISE 4
Very bad background object contamination on this one
The SED looks like a reddened YSO or possibly a galaxy
extended in all the DSS bands
It shifts around in DSS--but so do all the other stars. So it's ok.
That's a nice SED! And the object is nice and bright. Good one.
nebulosity at W4
background object at 8 o'clock
Yes--though we'd have to fly WISE again to get new data!
WISE 3 and WISE 4 backgrounds look high
background object at 9 o'clock
possible contaminant at 8 o'clock
galaxy or blend
big saturation problems in W1
I think it's close enough.
It's next to GR Tauri. Probably used as a calibrator star when people observe GR Tauri
but i don't see much contamination. I think this is is pretty solid
companion is at 35 arcsec according to SIMBAD
that looks like a deficit at W4, not an excess. I think we have saturation problems at W1.
Yes I think that's from saturation in W1. Otherwise it looks good. Shell stars often turn out to be debris disk stars!
10.9 day period
moves off crosshairs. probably a blend
mentioned in Kennedy & Wyatt 2013
background object outside circle at 4 o clock
maybe some faint nebulosity at W4, but not too bad
looks good to me
maybe a hint of nubulosity at W4, but just a touch
doesn't look contaminated to me--this is a good one!
I don't see any contamination. Looks good to me!
looks like a good candidate to me!
very good candidate!
Is W3 dropping out a bit?
I don't think there's an excess; it looks like it's just saturated at W1--
does that SED fall off too fast in the near IR to be a star?
The image shifts at W3. I fear this may be a blend
SED looks like a galaxy
shifts off the crosshairs, I think this is a blend
background object ad 6 oclock in DSS
Multiple objects in circle
background object at 10 o'clock in DSS blue and red
background objects at 2 o'clock and 9 o'clock
background object at 12 o'clock
background object at 4 oclock in DSS R and DSS IR
Beta Pictoris is a Delta Scuti variable!
W4 image looks contaminated
W1 image looks contaminated
Looks like it's saturated at W1
looks good to me
so bright it hurts my eyes! The circle and spikes you see in DSS are image artifacts.
A bit messy at W4, but maybe OK
SED looks a bit like a blend
pointing shift between DSS Blue and DSS Red--it's all the stars, so it's OK
multiple objects in circle
very reddened source
extends beyond circle at W4, background object in circle at 3 o'clock in DSS
No, multiple objects in circle
very faint background object at about 6 o'clock in DSS, maybe part of a diffraction spike?
multiple objects in circle
slight hint of extension/photocenter shift. probably still worth following up
multiple objects in circle in DSS
That's a blend---look at WISE 1
the SED looks like a YSO. But I'm worried about the background object at 1 o'clock in DSS
looks like that object at 9 o'clock is bleeding into WISE 4
WISE 2 and 3 seem to show some multiple sources. The SED looks like a galaxy.
looks extended beyond circle at WISE 4
multiple objects in circle
the W4 excess looks insignificant
with V=12.1, K=8.7, this is probably an M star of some kind.
multiple objects in circle. bg object at 8 o'clock
bg object at 6 o clock
bg object at 10 o clock
extended beyond circle, may have ism contamination
extends beyond circle
marginal---possible contaminant at 9 o'clock
moves off crosshairs in WISE 1.
DSS Blue and Red sure are noisy
red star, W4 excess is small
red, and W4 excess looks marginal
multiple objects in circle
extended beyond circle in WISE4.
multiple objects in circle at Blue DSS band
good candidate
very red, but clear W4 excess
multiple objects in circle
multiple objects in circle
maybe extended a bit beyond circle. marginally good candidate.
multiple objects in circle
given how red this is i think the W4-W1 excess may be insignificant.
Bright background object at 5 oclock in DSS just barely outside the circle. That makes this only a marginal candidate.
A marginal candidate. There's a very faint background object in the red circle at about 7 o'clock.
funny that it seems to have substantial proper motion, though, and a starlike SED
this object looks extended.
moves way off the crosshairs. this is not a good candidate
Type SR +L. That's a kind of red giant/supergiant that makes its own dust.
wow--that's a big 22 micron excess
I think we probably should discard this one--we can't trust the WISE 4 photometry.
Ooo--there's some kind of background object right on the red circle that might be contaminating the SED.
not a good candidate. object moves off crosshairs in W4.
Object moves off crosshairs. This is not a good candidate.
it could be a binary--but it could also be a background galaxy.
not a good candidate: multiple objects in circle
not a good candidate: it moves off the crosshairs.
shifts around--I think this is a blend
elongated at K, WISE1 and WISE 2
There's a second object int he red circle. This is a #blend, not a good candidate.
The image shifts from left to right as you go from short wavelengths to long. It's probably a blend.
The image shifts fro left to right as you go from short to long wavelengths. That makes me think this is a #blend
There's a background object in the red circle. This is not a good candidate.
something fishy in WISE 1
I wonder if that 22 micron excess is spillover from the bright star to the upper right.
This famous debris disk is called the "blue needle" or sometimes, the "grey needle" because it's edge-on and very lopsided.
I bet the excess is caused by the blend.
interesting. the SED looks like a blend--but the other two objects don't seem to be causing it.
That's definitely a blended pair of somethings.
Beautiful Planetary Nebula! I wonder if that's a bipolar outflow there in DSS2 Red.
I agree!
Yes, you can see that it's elongated in the DSS images.
That's a pretty edge-on galaxy in the upper left. Too bad it seems to leak into the red circle at WISE 3 and 4, contaminating the SED..
That SED looks pretty odd. I bet this is an AGN.
Right, it's 113 arcsec away! off the picture.
Probably a cosmic ray hit. This is a bad candidate, btw--you can see that it's oval in Blue, Red, IR, J.
Yes, it's a galaxy. You can tell from the references in SIMBAD.
Looks like a good candidate to me!
I agree!
It's because the resolution gets worse at W4. http://blog.diskdetective.org/2014/02/04/why-do-the-stars-seem-to-grow-at-longer-wavelengths/
Awesome!
This is why we don't completely rely on SIMBAD!
Beautiful!
it's a known debris disk with warm and cold dust components--like the asteroid belt and the Kuiper belt. Nice job!
Yes! Very nice! Proves we are doing the right thing!
It's a known IR source--but not a known disk. If it were a known disk, you'd learn that by reading the References on SIMBAD. OK candidate!
This star is saturating the detector---you're seeing noise associated with how the different pixels saturate differently.
RR Lyrae stars are important ways of measuring distances in astronomy.
SIMBAD thinks it's an AGN.
SED looks like star+disk. Phan-Bao et al, Astron. Astrophys., 380, 590-598 (2001) suggest it's a M star. This is what we're looking for!
That's funny! I'm not sure what's going on there.
Yes, a galaxy!
The images are fine, but the SED says: galaxy.
Alas, the SED looks more like a galaxy of some kind.
A bright G giant, saturating the detectors!
I'm not wild about this candidate--it's only slightly elongated, but it's elongated in the same way from K through 22microns. I say #galaxy
The SED is kind of suspiciously galaxy-ish.
SDSS is the Sloan Digital Sky Survey. This is a good candidate--I wonder why SIMBAD thinks it's a galaxy.
That is a funky and rare object: a binary where both stars are distorted into non-sphereical shapes by each other's gravity.
That one is a tough call, @DNiergarth. I agree it's a bit smeared. But maybe OK.
It's a little elongated in DSS--probably indeed a galaxy.
Maybe three galaxies!
I bet that's why it's off the crosshairs in DSS and 2MASS--because of the high proper motion.
I think it's a #galaxy, @jacko99. See how it's elongated in DSS?
Looks good to me!
@ElisabethB You seem to have discovered a caterpillar galaxy---
Yes--it's a good candidate. But check out this article on SEDs: http://blog.diskdetective.org/2014/02/01/spectral-energy-distributions-seds/
LOL
Otherwise, it's a good candidate!
Yes--a galaxy. You can see how it's extended in DSS.
A star---in the middle of a galaxy. Hey, nobody said this would be easy.
oww! turn it down! That's a bright A star, about 160 parsecs away. A stars make up most of the sky's brightest stars (by eye)
Looks like it might be a "runaway star". The 3.4 micron image may be saturated. If there are two objects, you'll see it in multiple bands.
Yes, and a good candidate.
RIght! SIMBAD tells us there's a bright star 98 arcsec away.
Nice one!
@Vinokurov Why do you say that? It looks like a good candidate to me. Maybe slightly non-round. But I think that's caused by the noise.
Maybe it's a pair of interacting galaxies. Like these:
http://en.wikipedia.org/wiki/Antennae_Galaxies
A galaxy....full of stars. Billions and Billions of stars.
The object to the lower right appears to be dominating the image stretch at some wavelengths, overwhelming the central object.
Yes indeed. Look how in DSS2 IR, all three objects have the same distorted shape. That's caused by the atmosphere.
Yes indeed! An asteroid or maybe an airplane.
Yes, it's not very round in WISE 4. And the SED looks like week-old roadkill.
It's slightly non-round in the 2MASS images, but that's probably caused by the background noise. OTOH the SED doesn't look much like a disk
It's very non-circular in WISE 1 and WISE 2, and continues to be offset in WISE 3 and WISE 4. It looks more like a pair of objects to me.
Just looking at the images, I might think it was marginally a good candidate. But the SED is a train wreck!
The galaxy is probably contaminating that SED. So it's not a good candidate, I'm afraid.
That's another bright object, #saturating the DPOSS detectors.
That's a bright star, and it's #saturating the detector.
Bane of our existence! (sorry, GalaxyZoo)
And a handsome one!
BTW, you can't always trust the classification at the top of the SIMBAD page. But Debbie's right; this ain't no disk.
I'd say it's still pretty much on the crosshairs the whole time too.
Wow, that is a beauty!
I think TED91 is talking about the stripe in DSS Blue. Yes, an artifact indeed.
Hi everybody!