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Colors and magnitudes of quasar host galaxies at high redshift

Published online by Cambridge University Press:  01 December 2004

Susan E. Ridgway ,
Tim Heckman  and
Mark Lacy
Susan E. Ridgway
Affiliation:
Dept. of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore MD, USA email: [email protected], [email protected]
Tim Heckman
Affiliation:
Dept. of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore MD, USA email: [email protected], [email protected]
Mark Lacy
Affiliation:
Spitzer Science Center, MS220-6, Caltech, 1200 E. California Blvd, Pasadena, CA 91125, USA email: [email protected]
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Abstract

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We discuss the results so far of a program to image in the rest-frame optical and near-UV the host galaxies of a sample of 5 high redshift (z∼2−3) radio-quiet quasars with nuclear luminosities lower than most samples studied at high z. We found that in the rest-frame optical the hosts have luminosities of about L∗, comparable to the Lyman break galaxies at similar redshifts. From the rest-frame UV imaging, we can derive optical–UV colors, and find they show a great deal of variation, but may be somewhat redder and less starforming than the LBGs. We are supplementing this work at high z with study of the hosts of z∼1 radio-quiet quasars with similar low nuclear luminosities.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
POSTERS
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS222 , March 2004 , pp. 537 - 538
Copyright
© 2004 International Astronomical Union