On the Relationship between Galaxies and Absorption Systems in the Vicinities of QSOs

Details On the Relationship between Galaxies and Absorption Systems in the Vicinities of QSOs On the Relationship between Galaxies and Absorption Systems in the Vicinities of QSOs

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.4504y&link_type=abstract

American Astronomical Society, 186th AAS Meeting, #45.04; Bulletin of the American Astronomical Society, Vol. 27, p.876

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The relationship between galaxies and absorption systems in the vicinities of QSOs is examined, based on results of an ongoing imaging and spectroscopic survey of faint galaxies in fields of Hubble Space Telescope spectroscopic target QSOs. Evidence of a ``galaxy proximity effect'' is presented. Specifically, it is show that galaxies in the vicinities of QSOs do not possess the same extended halos that galaxies far from QSOs possess. Implications for application of the proximity effect toward measurement of the intensity of the background ultraviolet radiation field and for the origin and nature of associated absorption sytems are discussed.

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