ADAPTIVE OPTICS OBSERVATIONS OF LBQS-0108- K-BAND DETECTION OF THE HOST GALAXY OF A RADIO-QUIET QSO AT Z-APPROXIMATE-TO-2(0028 )

Authors
ARETXAGA I LEMIGNANT D MELNICK J TERLEVICH RJ BOYLE BJ
Citation
I. Aretxaga et al., ADAPTIVE OPTICS OBSERVATIONS OF LBQS-0108- K-BAND DETECTION OF THE HOST GALAXY OF A RADIO-QUIET QSO AT Z-APPROXIMATE-TO-2(0028 ), Monthly Notices of the Royal Astronomical Society, 298(1), 1998, pp. 13-16
Citations number
26
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
298
Issue
1
Year of publication
1998
Pages
13 - 16
Database
ISI
SICI code
0035-8711(1998)298:1<13:AOOOLK>2.0.ZU;2-A
Abstract
We report the first unambiguous detection of the host galaxy of a norm al radio-quiet QSO at high redshift in the K band. The luminosity of t he host comprises about 35 per cent of the total K-band luminosity. As suming the average colour of QSOs at Z approximate to 2, the host woul d be about 5 to 6 mag brighter than an unevolved L galaxy placed at z approximate to 2, and 3 to 4 mag brighter than a passively evolved L galaxy at the same redshift. The luminosity of the host galaxy of the QSO would thus overlap with the highest found in radio-loud QSOs and radio galaxies at the same redshift.