Radio Galaxy Zoo Talk

ASW0003c42 FIRST J021854.4-081256 radio-source seen into optical CFHTLS field presented in Space Warps

  • c_cld by c_cld

    ASW0003c42 1237652901300011427

    Are we seeing in optical an #hourglass ? What do you think?

    1237652901300011427 up right corner DR10 Id 1237652901300011427

    FIRST J021854.4-081256 FIRST J021854.4-081256

    1237652901300011427 1237652901300011427

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  • Dolorous_Edd by Dolorous_Edd

    Top right corner .. is it a lens or chance alignment of stars??? Looks very similar to their example of lensed quasar

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  • c_cld by c_cld

    spectrum

    I trust that its spectrum rules out stars and quasar; what are other clues: radio/X source ionizing radiation?

    id=4948553114334003200

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  • c_cld by c_cld

    see also ASW0009ceh FIRSTJ142245.4+571043 with shining gas

    1237659146706616419

    1237659146706616419

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  • 42jkb by 42jkb scientist, admin in response to C_cld's comment.

    I believe that a strong OIII or HB line would indicate the presence of an AGN. As for the radio side, an overlay of radio onto the optical image would be nice, however it appears to be a compact radio source.

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  • 42jkb by 42jkb scientist, admin in response to C_cld's comment.

    This one is not in our sample of RGZ sources as it is compact in the radio. We only put in 5% of the total number of sources as compact as when we began we were interested in the weird and oddly shaped radio morphology sources. Having said that, the fact that this is #green and hosting a radio source is interesting. I am compiling a list to follow up on so I will add this one to the list.

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

    A slightly more zoomed-out SDSS image of z_sp 0.215 SDSS J021854.33-081254.9:

    enter image description here

    Perhaps it's a merger? or an overlap? Optical morphology is hard to make out though, even in the CFHTLS image.

    Radio-wise, it looks like the SE object is the host (but at this scale, how could you be sure?):

    enter image description here

    Boilerplate: SDSS image per http://skyservice.pha.jhu.edu/DR10/ImgCutout/getjpeg.aspx, FIRST (red) contours derived from the FITS file produced using SkyView with Python code described in this RGZ Talk thread. Image center (J2000.0) is the galaxy SDSS J021854.33-081254.9; 'z_sp' its SDSS spectroscopic redshift.

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

    Zoomed out a bit, z_ph 0.295±0.0995/0.328±0.1219 SDSS J142245.42+571044.0 looks like this (certainly green! 😃):

    enter image description here

    As 42jkb said, it's a compact radio source (at FIRST's resolution):

    enter image description here

    Boilerplate: SDSS image per http://skyservice.pha.jhu.edu/DR10/ImgCutout/getjpeg.aspx, FIRST (red) contours derived from the FITS file produced using SkyView with Python code described in this RGZ Talk thread. Image center (J2000.0) is the galaxy SDSS J142245.42+571044.0; 'z_ph' its SDSS photometric redshift.

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