QSO Host Galaxies at z=2.3
1995; Institute of Physics; Volume: 110; Linguagem: Inglês
10.1086/117578
ISSN1538-3881
Autores Tópico(s)Galaxies: Formation, Evolution, Phenomena
ResumoImages 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 mag, than radio-loud QSOs.
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