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The host Galaxies of z ≈ 2 Radio-Quiet QSOS

Published online by Cambridge University Press:  25 May 2016

Itziar Aretxaga ,
B.J. Boyle  and
R.J. Terlevich
Itziar Aretxaga
Affiliation:
Royal Greenwich Observatory, Madingley Road. Cambridge CB3 0EZ. UK
B.J. Boyle
Affiliation:
Royal Greenwich Observatory, Madingley Road. Cambridge CB3 0EZ. UK
R.J. Terlevich
Affiliation:
Royal Greenwich Observatory, Madingley Road. Cambridge CB3 0EZ. UK

Extract

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Based on an R-band imaging survey of high-redshift (z ≈ 2) QSOs with the 4.2m WHT, we report the detection of extensions to the nuclear PSFs of two radio-quiet and one radio-loud QSO. The extensions are most likely host galaxies, with luminosities of at least 3 – 7% of the QSO luminosity. The most likely values for the luminosities lie in the range 6 – 18% of the QSO luminosity (R ∼ 19.8 – 20.9 mag). Our observations show that, if the extensions we have detected are indeed galaxies, extraordinary massive and luminous galaxies are not only characteristic of radio-loud objects, but of QSOs as an entire class. For a detailed description of this work, see Aretxaga, Boyle & Terlevich (1995) MNRAS, 275, L27.

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 171: New Light on Galaxy Evolution , 1996 , pp. 338
Copyright
Copyright © Kluwer 1996