Radio Galaxy Zoo Talk

ARG0000kw9, doublelobe or two separate emissions, SDRAGN candidate?

  • ChrisMolloy by ChrisMolloy

    Here's ARG0000kw9, which appears to be an #extended #doublelbe, almost #slipstrike. The contour image below is centred on SDSS J165945.35+501341.4, which is ESE of the ARG co-ordinates listed left.

    enter image description here

    The contour overlay image in this post was created from sources, and using methods, described in this RGZ Talk
    thread.     First in red.

    A possible host for the emission could be SDSS J165945.35+501341.4, which has an ALLWISE reference, ALLWISE J165945.36+501341.3, and is positioned on a strong ir source, left. There doesn't appear to be any radio references listed in NED nor SIMBAD for this object, and it is listed as a star in SDSS. SDSS J165945.35+501341.4 is positioned in the middle of the lobes, and could possibly be a #QSO, but there doesn't seem to be a classification for this in NED, nor SIMBAD.

    SDSS J165945.35+501341.4

    enter image description here

    There is also the possibility that SDSS J165949.04+501328.0 could be the host of both these lobes. This object is positioned on the southern edge of the east lobe. This galaxy has a z_ph=0.128 ± 0.0318, and radio references in NED and possibly SIMBAD, although this latter reference is positioned slightly NW of SDSS J165949.04+501328.0. There is also an ALLWISE reference, ALLWISE J165949.03+501328.1.

    This object is possibly a #disk galaxy. It has a fracDev_g, _r, of 0, and 0.015; and an expAB_g of 0.820 and expAB_r of 0.776 respectively. For c, the inverse concentration index, it has a figure of 0.544 for the g band and 0.520 for the r band. On the above parameters, SDSS J165949.04+501328.0 could possibly be a disk galaxy, and maybe an #SDRAGN candidate, if it is the host of the emissions.

    SDSS J165949.04+501328.0

    enter image description here

    There is also a radio reference in NED for SDSS J165943.05+501346.2, which has a z_ph=0.627 ± 0.0471. This object has an ALLWISE reference, ALLWISE J165943.08+501346.2, and this galaxy is positioned in the centre of the west emission.

    SDSS J165943.05+501346.2

    ![enter image description here](http://skyserver.sdss.org/dr14/SkyServerWS/ImgCutout/getjpeg?TaskName=Skyserver.Explore.Image&ra=254.922279427976&dec=50.2291818969985&scale=0.2&width=200&height=200&opt=G)

    Finally, there is always the possibility that both these emissions are separate and not connected, and that SDSS J165949.04+501328.0 and SDSS J165943.05+501346.2 are the hosts of both lobes respectively.

    As always, comments, suggestions, welcome.

    Posted