1999A&A...349..537V

Query : 1999A&A...349..537V

1999A&A...349..537V - Astronomy and Astrophysics, volume 349, 537-545 (1999/9-2)

Light variations of massive stars (α Cygni variables). XVII. The LMC supergiants R74 (LBV), R78, HD34664 = S22 (B[e]/LBV), R84 and R116 (LBV?).

VAN GENDEREN A.M. and STERKEN C.

Abstract (from CDS):

Multi-colour photometry (Walraven system) of five super- and hypergiants in the LMC, viz. R74, R78, HD34664, R84 and R116, is searched for variability and periods, and discussed. Apart from R84, of which the claimed variability in the past must be due to a number of faint field stars at the edge of the apertures, all are variable. R74 and HD34664 are weak-active LBVs with superimposed microvariations. HD34664 is the second known B[e] star which is also an LBV. The first reported one is R4 in the SMC. This could alter some views on the evolutionary history of B[e] stars and LBVs. R78 is an α Cyg variable, but presumably no LBV. R116 appears to be a close counterpart of the galactic ex-/dormant LBV ζ1 Sco, also showing an intricate α Cyg-type multi-period microvariability.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: R116 = HDE 269700, R74 = HDE 268939, R78 = HDE 269050, R84 = HDE 269227, S22 = HD 34664 - galaxies: Magellanic Clouds

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LHA 115-S 6 s*b 00 46 55.0295765376 -73 08 34.136808252 12.14 13.02 12.91   12.52 B0/0.5[e] 84 1
2 HD 268939 s?b 05 04 14.9089614288 -67 15 05.254922232   11.07 11.03 11.12   B:Ie 38 0
3 HD 33486 * 05 05 06.6627617352 -68 05 11.158005336   7.83 7.86     A0IV 50 0
4 HD 269050 s*b 05 07 20.4218668824 -68 32 08.569322196 10.593 11.581 11.54 11.46 11.55 B0Ia(e?) 70 0
5 LH 39 As* 05 13 49.410 -69 32 42.76   10.89 10.86     ~ 24 0
6 HD 34664 s*b 05 13 52.9937299920 -67 26 54.820789332 11.509 11.88 11.774 11.63 10.991 B0/0.5I[e] 95 0
7 HD 269227 WR* 05 13 54.2756276088 -69 31 46.665067440 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 160 0
8 V* S Dor sg* 05 18 14.3570612088 -69 15 01.149576912 9.08 10.39 10.25 9.74 9.14 Be3 378 0
9 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17438 0
10 HD 269700 s*b 05 31 52.2818122296 -68 32 38.857949016 9.71 10.56 10.54 10.38 10.38 B1.5Iaeq 84 0
11 * eta Car Em* 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2440 0
12 V* AG Car WR* 10 56 11.5781414448 -60 27 12.810673260 7.00 7.57 6.96 7.73   WN11h 631 0
13 * zet01 Sco s*b 16 53 59.7271314888 -42 21 43.307334468 4.80 5.31 4.79 4.32 3.86 B1.5Ia+ 372 0

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