A serendipitous deep cluster survey from ROSAT-PSPC pointed observations.

Details A serendipitous deep cluster survey from ROSAT-PSPC pointed observations. A serendipitous deep cluster survey from ROSAT-PSPC pointed observations.

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apl%26c..36..205r&link_type=abstract

Astrophysical Letters and Communications, Vol. 36, Nos. 1 - 6, p. 205 - 210

Astronomy and Astrophysics

Astrophysics

Clusters Of Galaxies: X-Ray Surveys, Clusters Of Galaxies: Intergalactic Gas

Scientific paper

The author presents a deep X-ray selected sample of galaxy clusters which has been created from a serendipitous search in ROSAT-PSPC deep pointed observations at high galactic latitude. The first results of the on-going optical follow-up program indicate a high success rate of identification. At present, 38 clusters out of 80 candidates have been identified on a 26 deg2 surveyed area. Recently obtained redshifts confirm the nature of these systems as low redshift groups (z ≍ 0.2 - 0.3) and intermediate redhift clusters (z ≍ 0.4 - 0.7). The author shows X-ray and optical images of several clusters identified to date, discusses the X-ray properties of the sample, and presents preliminary results on the redshift distribution. The final sample will include ≡100 clusters covering and area of ≡40 deg2.

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