Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-08-12
Astronomy and Astrophysics
Astrophysics
14 pages, referee style, 6 figures, 4 tables, accepted for publication in A&A
Scientific paper
10.1051/0004-6361:20053018
In this paper we present near infrared (NIR) imaging data of the host galaxy of the broad absorption line quasar (BALQ) at z=2.169, serendipitously found close to 3C48. The data were obtained with the ESO-VLT camera ISAAC during period 67. We find extended, rest-frame optical emission around the BALQ after subtracting a scaled stellar point spread function from the quasar nucleus in J, H, and Ks. The extended rest-frame optical emission can be interpreted as an approximately 2 Gyr old stellar population composing the host galaxy of the BALQ or a stellar population of similar age associated with an intermediate (z=1.667) absorption system spectroscopically identified by Canalizo & Stockton (1998) simultaneously. The rest-frame-UV emission on the other hand is dominated by a young, 500 Myr old stellar population. The UV/optical colors resemble a mixture of the two populations, of which the young one accounts for about 80%. Assuming that the residual emission is located at the BALQ redshift, we find that the host galaxy has a resolved flux of about 10% of the BALQ flux. The physical scale is quite compact, typical for radio quiet QSOs or Lyman break galaxies at these redshifts, indicating that the systems are still in the process of forming.
Eckart Andreas
Zuther Jens
No associations
LandOfFree
Near infrared imaging of the broad absorption line quasar BAL QSO 0134+3253 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 Near infrared imaging of the broad absorption line quasar BAL QSO 0134+3253, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near infrared imaging of the broad absorption line quasar BAL QSO 0134+3253 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-37866