Detection of Faint Objects

Details Detection of Faint Objects Detection of Faint Objects

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000eaa..booke1675p&link_type=abstract

"Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 1675. Bristol: Institute of Physics Publishing, 2001

Astronomy and Astrophysics

Astrophysics

Instrumentation And Observational Techniques, Observational Domains And Techniques

Scientific paper

In order to detect a faint object against the sky background, the object must have a signal level in contiguous pixels that is above a set threshold. Thus, the detection limit is set by a limiting isophotal threshold and a minimum object area. The area is typically that of the SEEING disk, i.e. the area of a stellar image. The limiting isophote is typically 2 times the background fluctuations of...

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