Disk Detective Talk
#goodcandidate . Looks like it's HD 130692
HD 98915! #goodcandidate
Interesting. Has the B-V color of an early-type star. My guess is late A, d ~ 250-300 pc. well done!
Yes this one is very nice.
This would be very interesting if confirmed as an excess source as SIMBAD claims the primary is M5.5. A rare M star + debris disk?
definitely a #galaxy though the SED looks a lot like that of a transitional disk.
Looks like a moderately early-type star with an excess at WISE-4.
WISE-1 looks pretty normal. But the detection is very weak in 2MASS (very close to the noise level) and looks strange there.
Looks like a star that is saturated in both the DSS2 Red and DSS2 IR filters. That's why it appears strange.
The object looks strange in the DSS images because it is so bright that it is saturated and the diffraction spikes are showing.
... but you see similar localized peaks in the 2MASS images (perhaps others). So I would say it's either noise or a very, very faint object
That is a tough one. My first reaction is that this is noise made visible by the color stretch of the image (1/2) ...
Yes, most likely a satellite/asteroid. Reid et al. 1991, PASP, 103, 661 has a nice description of things like this.
Yes, a galaxy viewed edge-on. Notice the appearance in the three DSS2 images: very much extended and disk-like.
yeah, looks like a single object to me.
That would be my guess. The object is very elongated in the SDSS images from 0.5 to 0.9 microns.
very, very red SED. #redobject .
very nice #galaxy
yeah, looks like a strong case of #contamination at WISE 4 (and maybe WISE 3)
Yeah, the streak in the DSS2 IR image is most likely noise. Usually, SN show up as particularly bright point sources, not plumes.
My guess is a satellite or an asteroid.
It appears large, not very point like, in the DSS2 images most likely because it is so bright (i.e. its light is saturated in the image).
Probably a cosmetic imperfection in the original photographic plates.
I agree.
The source (on crosshairs) isn't moving/wobbling in WISE 3/4. Rather, at WISE 3/4, a 2nd object is much brighter. (same as jdebes' exp).
looks like a galaxy.
My guess is a detector (er, photographic plate) artifact.
Excess emission looks extremely weak. I suspect light from the fainter object in the circled region is blending with the brighter one.
wicked-strong emission at lambda > 10 microns relative to the near-IR.
Visually, looks rather clear-cut. Very weird SED, though.
My guess is noise. If you look at the SED, the error bar at 2MASS H (about 1.6 microns) is rather large.
Possibly. Also, ~20% of the DSS2 frames were affected by airplanes, incl. "B52s in flying formation" (Reid et al. 1991, PASP, 103, 661).
Yeah, this one is tough. The SED suggests a weak 22 micron excess. Perhaps its contaminated by the neighboring star here?
Good question. Could be phot. artifact. POSS-II also had satellite trails and "B52s in formation flying exercises" (Reid et al 1991 PASP)
extremely red (optically faint, IR bright) SED. No SIMBAD counterpart?
Some minor (probably insignificant) movement between images but otherwise a very nice detection.
A bit of a close call. I marked it as not-round since it appears very elongated in the shortest wavelength DSS images
#goodcandidate . Looks like it's HD 130692
HD 98915!
#goodcandidate
Interesting. Has the B-V color of an early-type star. My guess is late A, d ~ 250-300 pc. well done!
Yes this one is very nice.
This would be very interesting if confirmed as an excess source as SIMBAD claims the primary is M5.5. A rare M star + debris disk?
definitely a #galaxy though the SED looks a lot like that of a transitional disk.
Looks like a moderately early-type star with an excess at WISE-4.
WISE-1 looks pretty normal. But the detection is very weak in 2MASS (very close to the noise level) and looks strange there.
Looks like a star that is saturated in both the DSS2 Red and DSS2 IR filters. That's why it appears strange.
The object looks strange in the DSS images because it is so bright that it is saturated and the diffraction spikes are showing.
... but you see similar localized peaks in the 2MASS images (perhaps others). So I would say it's either noise or a very, very faint object
That is a tough one. My first reaction is that this is noise made visible by the color stretch of the image (1/2) ...
Yes, most likely a satellite/asteroid. Reid et al. 1991, PASP, 103, 661 has a nice description of things like this.
Yes, a galaxy viewed edge-on. Notice the appearance in the three DSS2 images: very much extended and disk-like.
yeah, looks like a single object to me.
That would be my guess. The object is very elongated in the SDSS images from 0.5 to 0.9 microns.
very, very red SED. #redobject .
very nice #galaxy
yeah, looks like a strong case of #contamination at WISE 4 (and maybe WISE 3)
Yeah, the streak in the DSS2 IR image is most likely noise. Usually, SN show up as particularly bright point sources, not plumes.
My guess is a satellite or an asteroid.
It appears large, not very point like, in the DSS2 images most likely because it is so bright (i.e. its light is saturated in the image).
Probably a cosmetic imperfection in the original photographic plates.
I agree.
The source (on crosshairs) isn't moving/wobbling in WISE 3/4. Rather, at WISE 3/4, a 2nd object is much brighter. (same as jdebes' exp).
looks like a galaxy.
My guess is a detector (er, photographic plate) artifact.
Excess emission looks extremely weak. I suspect light from the fainter object in the circled region is blending with the brighter one.
wicked-strong emission at lambda > 10 microns relative to the near-IR.
Visually, looks rather clear-cut. Very weird SED, though.
My guess is noise. If you look at the SED, the error bar at 2MASS H (about 1.6 microns) is rather large.
Possibly. Also, ~20% of the DSS2 frames were affected by airplanes, incl. "B52s in flying formation" (Reid et al. 1991, PASP, 103, 661).
Yeah, this one is tough. The SED suggests a weak 22 micron excess. Perhaps its contaminated by the neighboring star here?
Good question. Could be phot. artifact. POSS-II also had satellite trails and "B52s in formation flying exercises" (Reid et al 1991 PASP)
extremely red (optically faint, IR bright) SED. No SIMBAD counterpart?
Some minor (probably insignificant) movement between images but otherwise a very nice detection.
A bit of a close call. I marked it as not-round since it appears very elongated in the shortest wavelength DSS images