2014MNRAS.445L..84G

Query : 2014MNRAS.445L..84G

2014MNRAS.445L..84G - Mon. Not. R. Astron. Soc., 445, L84-L88 (2014/November-3)

Discovery of a new Galactic bona fide luminous blue variable with Spitzer.

GVARAMADZE V.V., KNIAZEV A.Y., BERDNIKOV L.N., LANGER N., GREBEL E.K. and BESTENLEHNER J.M.

Abstract (from CDS):

We report the discovery of a circular mid-infrared shell around the emission-line star Wray 16-137 using archival data of the Spitzer Space Telescope. Follow-up optical spectroscopy of Wray 16-137 with the Southern African Large Telescope revealed a rich emission spectrum typical of the classical luminous blue variables (LBVs) like P Cygni. Subsequent spectroscopic and photometric observations showed drastic changes in the spectrum and brightness during the last three years, meaning that Wray 16-137 currently undergoes an S Dor-like outburst. Namely, we found that the star has brightened by ~1 mag in the V and Ic bands, while its spectrum became dominated by Fe ii lines. Taken together, our observations unambiguously show that Wray 16-137 is a new member of the family of Galactic bona fide LBVs.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): line: identification - circumstellar matter - stars: emission-line, Be - stars: evolution - stars: individual: Wray 16-137 - stars: massive

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* AG Car WR* 10 56 11.5781414448 -60 27 12.810673260 7.00 7.57 6.96 7.73   WN11h 649 0
2 NAME Crux-Scutum Spiral Arm reg 12 30 -60.0           ~ 323 0
3 WRAY 16-137 s*b 13 50 15.3659574432 -61 48 55.035208620     15.5     LBV 10 0
4 [MCM2005b] 40 Cl* 13 50 36 -61 40.2           ~ 3 0
5 VVV CL032 Cl* 13 50 41 -61 35.2           ~ 3 0
6 GAL 309.91+00.37 HII 13 50 45.8 -61 41 35           ~ 6 0
7 NAME Car-Sgr Arm PoG 15 00 -40.0           ~ 581 1
8 * P Cyg s*b 20 17 47.2019733389 +38 01 58.549132671 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1200 1

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