Hubble finds ghosts of quasars past

http://spacetelescope.org/news/heic1507/ 2 April 2015

http://hubblesite.org/newscenter/archive/releases/2015/13/

Those featured here are (from left to right on top row) the #Teacup (more formally known as 2MASX J14302986+1339117), #NGC 5972, 2MASX J15100402+0740370 and #UGC 7342, and (from left to right on bottom row) #NGC 5252, #Mrk 1498, #UGC 11185 and 2MASX J22014163+1151237.

Image credit: NASA, ESA, Galaxy Zoo team & W. Keel (University of Alabama, USA)

Posted April 2, 2015 4:13 PM

by c_cld

New release after http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000ynf

HST Imaging of Fading AGN Candidates I: Host-Galaxy Properties and Origin of the Extended Gas

Posted April 2, 2015 4:20 PM

by c_cld

Teacup 2MASX J14302986+1339117

Posted April 2, 2015 4:36 PM

by c_cld

#NGC 5972

Posted April 2, 2015 5:01 PM

by c_cld

2MASX J15100402+0740370

Posted April 2, 2015 5:02 PM

by c_cld

#UGC 7342

Posted April 2, 2015 5:04 PM

by c_cld

#NGC 5252

Posted April 2, 2015 5:06 PM

by c_cld

#Mrk 1498

Posted April 2, 2015 5:08 PM

by c_cld

#UGC 11185

Posted April 2, 2015 5:09 PM

by c_cld

#2MASX J22014163+1151237

Posted April 2, 2015 5:11 PM

by c_cld

#IC 2497

Posted April 2, 2015 5:13 PM

by c_cld

VLA Finds Unexpected "Storm" at Galaxy's Core Release: 11 February 2015

In this composite image of the Teacup Galaxy, the green colors show the starlight, the blue colors show the gas and the red/yellow colors show the radio emission. The bright yellow blobs in the center of the image show where the radio “jets,” launched by the black hole, are driving into the gas and accelerating it to 1,000 km/s (200,000 miles per hour). The giant bubbles also are being inflated by the central black hole. This demonstrates that the central black hole is having a catastrophic effect on its home galaxy.

CREDIT: C. Harrison, A. Thomson; Bill Saxton, NRAO/AUI/NSF; NASA.

2MASX J14302986+1339117

teacup Teacup

in arxiv: http://arxiv.org/pdf/1410.4198.pdf 30 Jan 2015

Storm in a "Teacup": a radio-quiet quasar with ~10kpc radio-emitting bubbles and extreme gas kinematics
C.M. Harrison (Durham University), A.P. Thomson, D.M. Alexander, F.E. Bauer, A.C. Edge, M.T. Hogan, J.R. Mullaney, A.M. Swinbank

We present multi-frequency (1-8 GHz) VLA data, combined with VIMOS IFU data and HST imaging, of a z=0.085 radio-quiet type 2 quasar (with L(1.4GHz)~5e23 W/Hz and L(AGN)~2e45 erg/s). Due to the morphology of its emission-line region, the target (J1430+1339) has been referred to as the Teacup AGN in the literature. We identify "bubbles" of radio emission that are extended ~10-12 kpc to both the east and west of the nucleus. The edge of the brighter eastern bubble is co-spatial with an arc of luminous ionized gas. We also show that the Teacup AGN hosts a compact radio structure, located ~0.8 kpc from the core position, at the base of the eastern bubble. This radio structure is co-spatial with an ionized outflow with an observed velocity of v=-740 km/s. This is likely to correspond to a jet, or possibly a quasar wind, interacting with the interstellar medium at this position. The large-scale radio bubbles appear to be inflated by the central AGN, which indicates that the AGN can also interact with the gas on >~10 kpc scales. Our study highlights that even when a quasar is formally "radio-quiet" the radio emission can be extremely effective for observing the effects of AGN feedback.

View from SDSS

1237668348137177128 Redshift (z) 0.085