Host galaxies of 2MASS-selected QSOs at redshift over 0.3

Details Host galaxies of 2MASS-selected QSOs at redshift over 0.3 Host galaxies of 2MASS-selected QSOs at redshift over 0.3

2005-10-17

arxiv.org/abs/astro-ph/0510497v1

Astronomy and Astrophysics

Astrophysics

18 pages, including 2 tables, plus 6 figures; to appear in AJ

Scientific paper

10.1086/498725

We have obtained optical imaging with the Canada France Hawaii Telescope (CFHT) of 21 2MASS-selected QSOs of redshift greater than 0.3. This paper complements the sample of lower redshift 2MASS QSOs previously published. The QSOs have higher overall and nuclear luminosity, bluer colours, and higher ratio of nuclear to host flux than the lower redshift sample. From these and other properties, we argue that the sample is consistent with the emergence of the AGN from dusty starbursts following major tidal interactions between galaxies.

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