XMM observations of sigma Ori cluster Virtual Observatory Resource

Authors

1. Franciosini E.
2. Pallavicini R.
3. Sanz-Forcada J.

Published by

CDS

Abstract

We present the results of an XMM-Newton observation of the young (~2-4Myr) cluster around the hot star sigma Orionis. In a previous paper (Sanz-Forcada et al., 2004A&A...421..715S) we presented the analysis of the RGS spectrum of the central hot star; here we discuss the results of the analysis of the full EPIC field. We have detected 175 X-ray sources, 88 of which have been identified with cluster members, including very low-mass stars down to the substellar limit. We detected eleven new possible candidate members from the 2MASS (Cat. <II/246>) catalogue.

Keywords

1. open-star-clusters
2. x-ray-sources
3. pre-main-sequence-stars
4. infrared-photometry

Bibliographic source Bibcode

2006A&A...446..501F

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doi:10.26093/cds/vizier.34460501

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