SIMBAD references

2008A&A...478..667C - Astronomy and Astrophysics, volume 478, 667-674 (2008/2-1)

Stars and brown dwarfs in the σ Orionis cluster: the Mayrit catalogue.

CABALLERO J.A.

Abstract (from CDS):

The young σ Orionis cluster is an indispensable basis for understanding the formation and evolution of stars, brown dwarfs, and planetary-mass objects. Our knowledge of its stellar population is, however, incomplete. I present the Mayrit catalogue, which comprises most of the stars and high-mass brown dwarfs in the cluster. The basis of this work is an optical-near infrared correlation between the 2MASS and DENIS catalogues in a circular area of radius 30arcmin centred on the OB-type binary σOri AB. The analysis is supported by a bibliographic search of confirmed cluster members with features of youth and by additional X-ray, mid-infrared, and astrometric data. I list 241σ Orionis stars and brown dwarfs with known features of youth, 97 candidate cluster members (40 are new), and 115 back- and foreground sources in the survey area. The 338 cluster members and member candidates constitute the Mayrit catalogue. This catalogue is a suitable input for studying the spatial ditribution, multiplicity, properties and frequency of discs, and the complete mass function of σ Orionis.

Abstract Copyright:

Journal keyword(s): astronomical data bases: miscellaneous - stars: low-mass, brown dwarfs - Galaxy: open clusters and associations: σ Orionis

VizieR on-line data: <Available at CDS (J/A+A/478/667): tablea1.dat tablea2.dat tablea3.dat tablea4.dat tablea5.dat tablea6.dat tablea7.dat>

Nomenclature: Table a6: Mayrit AA, Mayrit NNNNNNN N=338.

Simbad objects: 475

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