Fossil group origins: III. The relation between optical and X-ray luminosities

Fossil group origins: III. The relation between optical and X-ray luminosities

Aims. This study is part of the Fossil group origins (FOGO) project which aims to carry out a systematic and multiwavelength study of a large sample of fossil systems. Here we focus on the relation between the optical luminosity (L sub(opt)) and X-ray luminosity (L sub(X)). Methods. Out of a total s...

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Veröffentlicht in:Astronomy and astrophysics (Berlin) 2014-05, Vol.565, p.np-np
Hauptverfasser: Girardi, M, Aguerri, J A L, De Grandi, S, D'Onghia, E, Barrena, R, Boschin, W, Mendez-Abreu, J, Sanchez-Janssen, R, Zarattini, S, Biviano, A, Castro-Rodriguez, N, Corsini, E M, del Burgo, C, Iglesias-Paramo, J, Vilchez, J M
Format: Artikel
Sprache:eng
Schlagworte:
Fossils
Luminosity
Origins
Samples
Sky surveys (astronomy)
Statistical analysis
Statistical methods
X-rays
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Zusammenfassung:Aims. This study is part of the Fossil group origins (FOGO) project which aims to carry out a systematic and multiwavelength study of a large sample of fossil systems. Here we focus on the relation between the optical luminosity (L sub(opt)) and X-ray luminosity (L sub(X)). Methods. Out of a total sample of 28 candidate fossil systems, we consider a sample of 12 systems whose fossil classification has been confirmed by a companion study. They are compared with the complementary sample of 16 systems whose fossil nature has not been confirmed and with a subsample of 102 galaxy systems from the RASS-SDSS galaxy cluster survey. Fossil and normal systems span the same redshift range 0
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201323311