LIGHT VARIATIONS OF MASSIVE STARS (ALPHA-CYGNI VARIABLES) .14. THE HYPERGIANT WRA 977=BP-CRU AND THE LUMINOUS BLUE VARIABLE (LBV) HDE-269582=HV-5495 IN THE LMC

Authors
VANGENDEREN AM STERKEN C
Citation
Am. Vangenderen et C. Sterken, LIGHT VARIATIONS OF MASSIVE STARS (ALPHA-CYGNI VARIABLES) .14. THE HYPERGIANT WRA 977=BP-CRU AND THE LUMINOUS BLUE VARIABLE (LBV) HDE-269582=HV-5495 IN THE LMC, Astronomy and astrophysics, 308(3), 1996, pp. 763-772
Citations number
45
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
308
Issue
3
Year of publication
1996
Pages
763 - 772
Database
ISI
SICI code
0004-6361(1996)308:3<763:LVOMS(>2.0.ZU;2-J
Abstract
We present and discuss new multi-colour photometry of the massive X-ra y binary and hypergiant WRA 977=BP Cru and the luminous blue variable (LBV) HDE 269582=HV 5495 in the LMC. The light variations of WRA 977 a re typical for a normal alpha Cyg variable and show an average quasi-p eriod of 11(d)90 over a time interval of 17 yr. The distance could be as large as 7.7 +/- 2.3 kpc. The light variations of HDE 298582 = HV 5 495 = MWC 112, showing a timescale of 1-2 yr, have an amplitude of 0(m )3-0(m)5. This points to an LBV near minimum light. The colour variati on is also typical for an LBV.