Disk Detective Talk

Good candidate or not ?

  • anoxie by anoxie

    Hi, here is the object, in LDN1340, nothing in SIMBAD:

    http://talk.diskdetective.org/#/subjects/AWI00055uh

    should it be rejected as multiple? and why? thank you.

    Posted

  • biggsjrex by biggsjrex moderator

    I see at least two additional objects within or mostly within the red circle - one at 3:00 and one at 11:00, so I would label this multiple objects.

    Posted

  • anoxie by anoxie

    So, we're looking for distant, challenging candidates and we rule out systematically multiple objects? That's it?

    Posted

  • Shigeru by Shigeru moderator in response to anoxie's comment.

    Indeed, objects with multiple objects inside the circle must be weed out we don't want them, we don't have any means to tell one apart of the another easily, so there are not useful for DD 😃

    Posted

  • anoxie by anoxie

    I get it you don't want it, it is not usefull for DD.

    Second question: do you think http://talk.diskdetective.org/#/subjects/AWI00055uh could be a YSO candidate?

    and another pending question: is http://talk.diskdetective.org/#/subjects/AWI0000ajw useful for DD, clearly extended isn't it?

    Posted

  • biggsjrex by biggsjrex moderator

    The values for Vmag (15-16), Kmag (9.403) and Jmag (12.025) suggest the object in the center of image AWI00055uh may be a YSO; a late type star would usually have lower values for Kmag (6-7 range) and Jmag. If it were otherwise a good candidate, I might have marked it YSO? or possible YSO.

    Posted

  • biggsjrex by biggsjrex moderator

    If there had been no information about the object in AWI0000ajw, I would have marked it extended and moved on. But when I find information in SIMBAD or VizieR to show it is also a particularly interesting object, like a white dwarf star with a possible disk, as here, I usually ignore the fact that it is extended and mark it as a good candidate, leaving the astronomers to decide whether the object should be rejected or not.

    Posted

  • anoxie by anoxie

    I guess it's subjective. At least i can see i'm not the only one to feel free to label objects not exclusively according to their visual properties.

    Thank you for your answer biggsjrex.

    Posted