Disk Detective Talk

"Disk Detective Candidates for follow-up observations on Google Sheet"

  • TED91 by TED91 moderator

    Hi folks,

    I thought it would be a good idea to start this post for those of us who are involved in "Disk Detective Candidates for follow-up observations on Google Sheet", so we can stay updated.

    For the rest of you: You can always suggest your favorite candidates for follow-up observations here:

    https://docs.google.com/forms/d/1DfmYSrg614osuLaUsac_a03dX-Bt6Ab2ep5SXC4XWHw/viewform?edit_requested=true

    Marc wrote me that he discuss the target list with science team. As he learned, we're going to need the WISE 1 magnitude and the WISE 4 magnitude to understand the M stars. I add new columns, so feel free to start fill in them.

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  • onetimegolfer by onetimegolfer

    message read

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  • voyager1682002 by voyager1682002 moderator

    Ok will do.

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  • TED91 by TED91 moderator

    I also created a new sheet "All potencional targets". We could add there all potential targets, so we will be ready for all further observations (not just search for disks around stars probably). I already added 50 objects and if you want you can add more of course.

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  • Artman40 by Artman40

    What kind of stars are also candidates for follow-up observations other than those with disk potential?

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  • Pini2013 by Pini2013 translator, moderator in response to TED91's comment.

    In this new spreadsheet, are we making sure that these objects are not yet in the other lists?

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  • TED91 by TED91 moderator

    If the object fulfills the criteria for FLWO observation, make sure that you add it here, that's more important now.

    I thought that we should create one list of all potencional targets eventually, from which we select objects for a particular observing run later, so this list should contain also targets for FLWO observation eventually.

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  • TED91 by TED91 moderator

    @artman40 What I meant is, that this list of stars maybe could be used even for other purposes eventually.

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  • Pini2013 by Pini2013 translator, moderator in response to TED91's comment.

    ok Ted 😉

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  • Artman40 by Artman40 in response to TED91's comment.

    Try these stars then:
    http://talk.diskdetective.org/#/collections/CWIS00009h
    Here are all kinds of red variable stars. Although a large portion of them are located in Small Magellanic Cloud.

    http://talk.diskdetective.org/#/collections/CWIS00009i
    and
    http://talk.diskdetective.org/#/collections/CWIS00009k

    I didn't add variable stars before so feel free to look them from there. I already added main sequence stars and subgiants.

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  • Pini2013 by Pini2013 translator, moderator in response to TED91's comment.

    I believe we are still following the suggestions sent in the last email. There was a list of the objects we want to follow. ???

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  • voyager1682002 by voyager1682002 moderator

    I think I have a few that don't fit the current criteria, should I add them in as long as they are "star"?

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  • onetimegolfer by onetimegolfer

    That's my question too. Should we list southern hemisphere in the additional page? Im stuck in the southern region for targets.

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  • voyager1682002 by voyager1682002 moderator

    They might be useful for other kind of research in the future.

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  • TED91 by TED91 moderator

    @Pini2013 You're right. For follow-up observation with FLWO telescope we still follow the same criteria.

    But sometime in the future maybe could be used another telescope, and other observations may have different criteria. I thought that we could put together a list of targets for these possible observations. @onetimegolfer That means both hemispheres.

    In this list, you can notice that there are several objects that don't follow criteria for FLWO observation.

    http://circumstellardisks.org/resolved.php

    If you are able to recognize the stars which can't have disks around them, then don't add them. I'm not an expert and if I'm not sure, then I rather add this star.

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  • Pini2013 by Pini2013 translator, moderator in response to TED91's comment.

    The list in this link is the " catalog of resolved disks ". These are stars with known disks. What the email said was:
    "These are the objects we most want to follow up:
    Main sequence stars (aka dwarfs),
    Luminosity Class IV stars: A IV, F IV, G IV, K IV, M IV.
    F III and K III stars.
    White dwarfs.
    Objects with distance < 200 parsecs,
    Objects with proper motion > 30 arcsec/year,
    Shell stars

    We don't want:

    M giants, Cepheids, Be stars, galaxies, agn, blends, eclipsing binaries, O stars, supergiants.

    There are also: objects where we can't tell what it is, binaries, known disks
    Those are the "Maybes". "

    There is something else for M stars but I think at least we can follow this instructions for both hemispheres.
    What do you think?
    Also I agree with you that if I'm not sure of the type of the star or the object, I would rather add it than lose a possible candidate.

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  • TED91 by TED91 moderator in response to Pini2013's comment.

    Yes, I agree with you in this.

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