Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-10-03
Astronomy and Astrophysics
Astrophysics
5 pages, 4 postscript figures, preparaed in LaTeX. Will appear in Publications of the Astronomical Society of Australia, as pa
Scientific paper
10.1071/AS02038
We present high resolution spectra (0.7 A/pix) of the GPS source 4C 12.50 with large spectral coverage (~ 4500A) taken with the 4.2m William Herschel Telescope on La Palma. The slit was aligned along PA 160 to include the nucleus and emission line region to the NW. An asymmetric halo extending 20 kpc NW and 12 kpc SE from the nucleus is clearly seen. At the position of the nucleus we observe unusually broad forbidden emission line components (broadest component: FWHM ~ 2000 km s^-1), blue shifted by up to 2000 km s^-1 with respect to the halo of the galaxy and HI absorption. We interpret this as material in outflow. We measure E(B-V) = 1.44 for the broadest, most kinematically disturbed component, corresponding to an actual Hbeta flux 130 times brighter than that measured. We calculate an upper limit for the mass of the line emitting gas of order 10^6 solar masses for both the intermediate and broad components. Our results are consistent with 4C 12.50 being a young radio source.
Holt Jackie
Morganti Rafaella
Tadhunter Clive N.
No associations
LandOfFree
Extreme emission line outflows in the GPS source 4C 12.50 (PKS 1345+12) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Extreme emission line outflows in the GPS source 4C 12.50 (PKS 1345+12), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extreme emission line outflows in the GPS source 4C 12.50 (PKS 1345+12) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-24489