ARG0001h8s - Lobe of the known quasar 4C 34.47
-
by
Dolorous_Edd
Flagged by antikodon
Are we looking at two separate sources one at ~ 17 23 23.77 +34 16 07.1 and second one ~ 17 23 20.88 +34 17 53.7?
OR it is actually a double?IMHO feature at ~17 23 18.63 +34 19 39.0 looks like a lobe
VLA FIRST 0.15 x 0.15 degrees field
Coordinates of the possible source RA / DEC 17 23 20.88 +34 17 53.7
NED search result within 1 arcmin of possible source
Source candidate 2: - SDSS - J172320.80+341757.9?
Posted
-
by
akapinska
scientist
in response to Dolorous Edd's comment.
I am pretty certain that what we are looking at is a #triple. 17 23 20.88 +34 17 53.7 is the core of this large radio galaxy. The other coordinates are the lower left lobe. The possible optical identification is the first hit you get from the NED query I would say: QSO at z=0.206, which would make this radio galaxy 900 kilo-parsec in size! (i.e. almost 3 million light-years; the radio galaxy is 4.5 arc min angular size).
Posted
-
by
akapinska
scientist
ah, it's a known source and sometimes referred to as giant quasar (although it doesn't reach the magical 1 Mpc): 4C 34.47 !
some scientific reading can be accessed here if anyone is interested: http://www.mysciencework.com/publication/read/66987/the-asymmetric-radio-structure-and-record-jet-of-giant-quasar-4c-34-47-the-asymmetric-radio-structure-and-record-jet-of-giant-qu#page-1
Posted