radio emission from disc galaxy

• by WizardHowl

  This is where it really hurts not having buttons for SDSS/NVSS or even the RA and DEC etc. (posted in Bug Reports about this already) : this looks like a disc galaxy and it has radio emission from the core. Is this emission due to star formation rather than an erupting black hole, though - as jets would be emerging more or less perpendicular to its galactic plane?

  Posted January 11, 2014 10:00 PM

• by DocR scientist

  Yes, this is a beauty.
  Here's the pic since you can't get SDSS right now.

  Posted January 11, 2014 11:12 PM

• by akapinska scientist in response to WizardHowl's comment.

  Yes, this radio emission is not from jets (although rare, spirals with radio jets do exist, keep an eye on them, e.g. http://radiotalk.galaxyzoo.org/#/subjects/ARG0000b5m). Most of the time the radio emission in spirals will be coming from supernovae and the like, may be also weak AGN core sometimes.

  Posted January 12, 2014 3:41 AM

• by WizardHowl in response to akapinska's comment.

  Thanks for answering! This lovely edge-on spiral is NGC 4634, one of a pair with NGC 4633, which is a short way off the top-right, following the plane of this galaxy. NVSS shows possibly very weak diffuse emission from that galaxy as well, which is a bulgeless spiral.

  Posted January 12, 2014 12:10 PM

• by c_cld

  ARG0000b5m

  NGC 3079 Seyfert_2 ,
  X-shaped radio

  

  in GZ forum

  Posted March 2, 2014 7:53 PM