The Reliability of Shape Measurements

Details The Reliability of Shape Measurements The Reliability of Shape Measurements

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxac..17...36k&link_type=abstract

Galaxy Evolution: Theory & Observations (Eds. Vladimir Avila-Reese, Claudio Firmani, Carlos S. Frenk & Christine Allen) Revista

Astronomy and Astrophysics

Astronomy

H Ii Regions, Ism: Jets And Outflows, Stars: Pre-Main Sequence, Stars: Mass Loss

Scientific paper

We use observations of the Chandra Deep Field South taken over two years with the Wide Field Imager at the MPG/ESO 2.2-m telescope on La Silla, Chile, to investigate how reliably shapes of faint objects can be recovered. This is a crucial test for all weak lensing studies where one uses small distortions of background galaxies to infer intervening mass distributions of galaxies, clusters of galaxies or large-scale-structure.

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