Disk Detective Talk

Criteria for "extended source"

  • abraham47 by abraham47

    Hello,
    In this image, the source looks within the red circle in WISE 1,2,3...but it goes beyond Red circle in WISE 4. So should we consider this as an "Extended beyond circle in WISE image" case?
    Regarding that I just got bit confused with the example given for Extended source (Nebula) & Multiple problems..
    In both cases description says extended beyond red circle...
    In Nebula the source itself goes out of Red circle but in case of Multiple problems example, source stays within circle and only outer radius goes beyond red circle....
    So, my doubt is, can we consider both cases as "Extended beyond red circle"?..If yes, then in this image only WISE 4 satisfies that..WISE 1,2,3 stays well within circle..so should we consider this image as extended beyond red circle in WISE image?

    Posted

  • Pini2013 by Pini2013 translator, moderator in response to abraham47's comment.

    Hi @abraham47
    yes, is a little extended but its first problem is that is multiple. See the faint objects in DSS2.

    Welcome to DD 😉

    Posted