Dust and the Search for High Redshift Quasars

Date

Authors

Webster, Rachel L.
Drinkwater, Michael J.
Francis, Paul
Masci, Frank J.
Peterson, Bruce A.

Journal Title

Journal ISSN

Volume Title

Publisher

Springer Verlag

Abstract

Quasars provide a unique probe of the matter distribution along high red-shift lines-of-sight, both through absorption line and gravitational lens studies. However if the selection of quasars is biased, then the related statistical descriptions of the matter distribution may also be biased. Recent work on a completely identified sample of radio sources shows that many quasars are significantly reddened. Arguments are presented which favour dust as the explanation of the reddening. Possible locations for the dust are explored, and the consequences of biased quasar selection briefly discussed.

Description

Citation

Source

ESO Astrophysics Symposia

Book Title

The Early Universe with the VLT

Entity type

Access Statement

Open Access

License Rights

Restricted until

2037-12-31