C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET02:53:47

2005A&A...443..903Z - Astronomy and Astrophysics, volume 443, 903-909 (2005/12-1)

Near infrared imaging of the broad absorption line quasar QSO B0134+3253.


Abstract (from CDS):

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 3C 48 (Canalizo et al., 1998AJ....115..890C). 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 2Gyr 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 et al. (1998). The rest-frame-UV emission on the other hand is dominated by a young, ∼500Myr old stellar population (Canalizo et al., 1998AJ....115..890C). 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.

Abstract Copyright:

Journal keyword(s): galaxies: fundamental parameters - galaxies: high-redshift - infrared: galaxies - galaxies: active

CDS comments: Fig.1: stars 1, 2, 3, not identified in SIMBAD.

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 QSO B0134+3253 QSO 01 37 40.679 +33 08 55.50     21.20     ~ 26 0
2 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2563 2
3 [VV96] J035721.6+011057 QSO 03 57 21.533 +01 10 55.82   23.0       ~ 25 0
4 QSO J1556+3517 QSO 15 56 33.7770938780 +35 17 57.387199648   21.39 20.68 19.07   ~ 81 1

    Equat.    Gal    SGal    Ecl

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