QSO HOST GALAXIES AT Z=2.3

Details QSO HOST GALAXIES AT Z=2.3 QSO HOST GALAXIES AT Z=2.3

1995-06-02

arxiv.org/abs/astro-ph/9506010v1

Astronomy and Astrophysics

Astrophysics

8 pages plain TeX, 3 figures not included but available by request to hutchngs@dao.nrc.ca To appear in the Astronomical Journa

Scientific paper

10.1086/117578

Images are discussed of six QSOs at z=2.3, one QSO-like IRAS source at z=2.3, and one QSO at z=1.1, taken with resolution 0.6 to 0.9 arcsec. Five of the QSOs are radio-quiet. All QSOs except one are just resolved, while the IRAS source has definite structure. In some cases, part of the QSO fuzz appears to be a close companion rather than a concentric host galaxy. The luminosities implied for the hosts or companions are typical of bright galaxies with young hot star populations. Radio-quiet QSOs appear to have host galaxies less luminous by ~2 magnitudes than radio-loud QSOs.

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