Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-04-29
Astronomy and Astrophysics
Astrophysics
Accepted to be published in MNRAS. 4 pages, 2 postscript figures. Also available at http://www.mpa-garching.mpg.de/~itziar
Scientific paper
10.1046/j.1365-8711.1998.01829.x
We report the first unambiguous detection of the host galaxy of a normal radio-quiet QSO at high-redshift in K-band. The luminosity of the host comprises about 35% of the total K-band luminosity. Assuming the average colour of QSOs at z=2, the host would be about 5 to 6 mag brighter than an unevolved L* galaxy placed at z=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.
Aretxaga Itziar
Boyle Brian J.
Le Mignant David
Melnick Jorge
Terlevich Roberto Juan
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