Light variations of massive stars (α Cygni variables). XIV. The hypergiant WRA 977=BP CRU and the luminous blue variable (LBV) HDE 269582=HV 5495 in the LMC.

Details Light variations of massive stars (α Cygni variables). XIV. The hypergiant WRA 977=BP CRU and the luminous blue variable (LBV) HDE 269582=HV 5495 in the LMC. Light variations of massive stars (α Cygni variables). XIV. The hypergiant WRA 977=BP CRU and the luminous blue variable (LBV) HDE 269582=HV 5495 in the LMC.

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...308..763v&link_type=abstract

Astronomy and Astrophysics, v.308, p.763-772

Astronomy and Astrophysics

Astrophysics

12

Techniques: Photometric, Stars: Individual: Wra 977=Bp Cru, Hde 269582=Hv 5495, Stars: Variables, Stars: Supergiants

Scientific paper

We present and discuss new multi-colour photometry of the massive X-ray 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 are typical for a normal α Cyg variable and show an average quasi-period of 11.90d over a time interval of 17yr. The distance could be as large as 7.7+/-2.3kpc. The light variations of HDE 298582=HV 5495=MWC 112, showing a timescale of 1-2yr, have an amplitude of 0.3-0.5mag. This points to an LBV near minimum light. The colour variation is also typical for an LBV.

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