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Дата изменения: Mon Jun 12 19:04:27 2006
Дата индексирования: Mon Oct 1 21:03:47 2012
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Поисковые слова: arp 220

NICMOS Imaging of QSO Host Galaxies at 0.1 < z < 4.4

L. J. Storrie-Lombardi and R. J. Weymann Carnegie Observatories, Pasadena, CA 91101, email: lisa@ociw.edu

K. K. McLeod Wellesley College, Wellesley, MA 02181

G. H. Rieke, J. Hill, and V. Kulkarni Steward Observatory, Tucson, AZ 85719

           

 

Abstract:

We present preliminary results from two programs to image the host galaxies of radio-quiet quasars in 1.6 micron light using NICMOS camera 2 on HST. The high redshift program consists of QSOs covering the redshift range 0.8 < z < 4.4 and a range of QSO luminosities. Of the six objects for which data have been obtained the results range from no host galaxy detected, to an obvious galaxy with an interacting companion, to a possible high redshift galaxy cluster. The low redshift program covers QSOs with 0.1 < z < 0.4. A host galaxy is detected in all 12 objects for which data have been obtained.

quasars, quasar host galaxies, galaxies