Host Galaxies of QSOs at z > 5

Details Host Galaxies of QSOs at z > 5 Host Galaxies of QSOs at z > 5

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005pasp..117.1250h&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 117, Issue 837, pp. 1250-1254.

Astronomy and Astrophysics

Astronomy

4

Galaxies: High-Redshift, Quasars: Individual (Sdss 0338+0021), Quasars: Individual (Wfs 2245+0024)

Scientific paper

This paper presents J-band imaging of two quasars with redshifts of 5.02 and 5.17, respectively, using the Gemini North (GN) telescope. The quasars differ in brightness by several magnitudes. The image resolution ranged from 0.4" to 1.0". Both of the quasi-stellar objects (QSOs) have resolved structure in their innermost arcsecond, and the brighter one shows resolved luminosity to a radius of 6". We also report on GN I- and z-band imaging of two QSOs at a redshift above 6 that are unresolved. The host galaxy luminosities and structure (and upper limits) are discussed and compared with K-band resolved QSOs at z=4.7 and the general K-z relationship.

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