SIMBAD references

2007AJ....133.2696B - Astron. J., 133, 2696-2708 (2007/June-0)

Variability of young massive stars in the galactic super star cluster Westerlund 1.

BONANOS A.Z.

Abstract (from CDS):

This paper presents the first optical variability study of the Westerlund 1 super star cluster in search of massive eclipsing binary systems. A total of 129 new variable stars have been identified, including the discovery of 4 eclipsing binaries that are cluster members, 1 additional candidate, 8 field binaries, 19 field δ Scuti stars, 3 field W UMa eclipsing binaries, 13 other periodic variables, and 81 long-period or nonperiodic variables. These include the known luminous blue variable, the B[e] star, 11 Wolf-Rayet stars, several supergiants, and other reddened stars that are likely members of Westerlund 1. The bright X-ray source corresponding to the Wolf-Rayet star WR 77o (B) is found to be a 3.51 day eclipsing binary. The discovery of a reddened detached eclipsing binary system implies the first identification of main-sequence stars in Westerlund 1.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Eclipsing - open clusters and associations: individual (Westerlund 1) - Stars: Variables: Other - Stars: Wolf-Rayet

VizieR on-line data: <Available at CDS (J/AJ/133/2696): table2.dat table3.dat>

Nomenclature: Table 2: [B2007] JHHMMSS.ss+DDMMSS.s N=129.

Simbad objects: 155

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