QSO HOST GALAXIES AT Z=2.3
arXiv:astro-ph/9506010 · doi:10.1086/117578
Abstract
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.
8 pages plain TeX, 3 figures not included but available by request to hutchngs@dao.nrc.ca To appear in the Astronomical Journal. Also available at http://www.dao.nrc.ca/DAO/SCIENCE/science.html