Radio Galaxy Zoo Talk

ARG00037vp - J101704.05+081744.9 a good SDRAGN candidate?

  • Dolorous_Edd by Dolorous_Edd

    SDSS J101704.05+081744.9 is visible in all 4 WISE bands which hints on the presence of AGN? or dust

    IMO one if the best candidates , I have seen so far

    enter image description here

    Posted

  • Dolorous_Edd by Dolorous_Edd

    Somehow better? looking image

    Link to NED

    We still have to

    a) detect radio core

    b) rule out SDSS J101703.63+081747.2 as possible host

    c)rule out background AGN as possible host

    enter image description here

    Posted

  • Dolorous_Edd by Dolorous_Edd

    Spectrum

    enter image description here

    Posted

  • JeanTate by JeanTate

    Here's a FIRST contour overlay on SDSS image I produced:

    enter image description here

    It's a very good SDRAGN candidate indeed! 😄

    What could be done - by us ordinary zooites or professional astronomers - to strengthen the case for it being an SDRAGN (or weaken it), short of making new radio observations?

    The image in this post was created from sources, and using methods, described in this RGZ Talk post. The object at the center of the image is SDSS J101704.05+081744.9

    Posted

  • JeanTate by JeanTate in response to JeanTate's comment.

    What could be done - by us ordinary zooites or professional astronomers - to strengthen the case for it being an SDRAGN (or weaken it), short of making new radio observations?

    Perhaps Mao+ (2014) - link to discussion of this paper in RGZ Talk - might provide some ideas? Here are some things which we might be able to do, while we wait for new radio and/or optical observations:

    • archival radio data: radio luminosity estimates from other surveys, e.g. NVSS, SUMSS
    • from this: an estimate of the spectral index
    • radial (optical) luminosity/intensity profile, from SDSS data; e.g. from a published source or by using GALFIT
    • perform our own estimate of where the nuclear region (central region within the 3" aperture) is on a BPT diagram (from SDSS data)
    • constrain the environment: on-the-sky distribution of galaxies with similar redshifts
    • check UV and x-ray surveys to establish limits on luminosity in those regions, work out implications for AGN activity and SFR rate
    • check value-added catalogs (e.g. MPAJHU), for things like estimated stellar mass
    • try to estimate the mass of the SMBH?

    Assume we - ordinary zooites - were to do all the above, and assume we could write it up in a professional-looking way, would we be crazy to think that we could submit such a document to a journal like MNRAS? Or, if we could find an endorser, put it up on arXiv?

    Posted

  • Dolorous_Edd by Dolorous_Edd

    Perhaps there are available Xray fluxes for this target

    enter image description here

    for more details

    http://isdc.unige.ch/heavens/

    Posted

  • Dolorous_Edd by Dolorous_Edd

    Just for the hell of it

    SDSS with FIRST/NVSS contours

    Green circles are positions of SDSS DR8 photometric objects

    enter image description here

    Edit 01/12/2015

    Also detected in VLSSr

    Posted

  • Dolorous_Edd by Dolorous_Edd

    NVSS (red) / VLSSr (blue) on SDSSg

    Slight bump in SW direction?

    enter image description here

    Posted

  • ivywong by ivywong scientist, admin

    Good candidate! The angle of the lobes is a bit unusual but the jets could be precessing....

    Posted