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Detecting the Low Surface Brightness Universe: the Extragalactic Background Light and LSB Galaxies

Published online by Cambridge University Press:  12 April 2016

P. Väisänen  and
E.V. Tollestrup
P. Väisänen
Affiliation:
Center for Astrophysics, 60 Garden St, Cambridge, MA 02138 and Observatory, P.O.B. 14, 00014University of Helsinki, Finland
E.V. Tollestrup
Affiliation:
Center for Astrophysics, 60 Garden St, Cambridge, MA 02138

Abstract

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Individual sources are detected ideally to a confusion limit at a given wavelength, but there is still much information beyond that. Absolute background brightness measurements provide a crucial constraint to models describing the undetected population of sources in the distant – and/or low surface brightness – universe. We calculate how much low surface brightness galaxies (LSB) would contribute to the the overall extragalactic background light (EBL) and review the status of EBL measurements in the optical and infrared wavelengths. To be able to push deeper the detection limits on very faint sources a fluctuation analysis method is introduced. The use of these different approaches together is essential when studying the very faint and low surface brightness universe.

Type
Extra-galactic background light
Information
International Astronomical Union Colloquium , Volume 171: The Low Surface Brightness Universe , 1999 , pp. 365 - 372
Copyright
Copyright © Astronomical Society of the Pacific 1999

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