LIGHT VARIATIONS OF MASSIVE STARS (ALPHA-CYG VARIABLES) - XV - THE LMC SUPERGIANTS R-99 (LBV), R-103, R-123 (LBV) AND R-128

Authors
VANGENDEREN AM STERKEN C DEGROOT M REIJNS RA
Citation
Am. Vangenderen et al., LIGHT VARIATIONS OF MASSIVE STARS (ALPHA-CYG VARIABLES) - XV - THE LMC SUPERGIANTS R-99 (LBV), R-103, R-123 (LBV) AND R-128, Astronomy and astrophysics, 332(3), 1998, pp. 857-866
Citations number
44
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
332
Issue
3
Year of publication
1998
Pages
857 - 866
Database
ISI
SICI code
0004-6361(1998)332:3<857:LVOMS(>2.0.ZU;2-C
Abstract
VBLUW photometry (Walraven system) of the four variable LMC supergiant s R 99, R 103, R 123 and R 128 is analysed, searched for periods and d iscussed. Based on former and present photometry we conclude that two of the three emission-line objects are undoubtedly active LBVs (R 99 a nd R 123), although not so spectacular. R 123, like AG Car near minimu m brightness, shows a low amplitude S Dor activity with superimposed a lpha Cyg-type variations.