2009A&A...503..511M


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.18CEST10:35:55

2009A&A...503..511M - Astronomy and Astrophysics, volume 503, 511-520 (2009/8-4)

RAVE spectroscopy of luminous blue variables in the Large Magellanic Cloud.

MUNARI U., SIVIERO A., BIENAYME O., BINNEY J., BLAND-HAWTHORN J., CAMPBELL R., FREEMAN K.C., FULBRIGHT J.P., GIBSON B.K., GILMORE G., GREBEL E.K., HELMI A., NAVARRO J.F., PARKER Q.A., REID W., SEABROKE G.M., SIEBERT A., STEINMETZ M., WATSON F.G., WILLIAMS M., WYSE R.F.G. and ZWITTER T.

Abstract (from CDS):

The RAVE spectroscopic survey for galactic structure and evolution obtains 8400-8800Å spectra at 7500 resolving power at the UK Schmidt Telescope using the 6dF multi-fiber positioner. More than 300000 9≤IC≤12 and |b|≥25° southern stars have been observed to date. This paper presents the first intrinsic examination of stellar spectra from the RAVE survey, aimed at evaluating their diagnostic potential for peculiar stars and at contributing to the general understanding of luminous blue variables (LBVs). We used the multi-epoch spectra for all seven LBVs observed, between 2005 and 2008, in the Large Magellanic Cloud (LMC) by the RAVE survey. We demonstrate that RAVE spectra possess significant diagnostic potential when applied to peculiar stars and, in particular, LBVs. The behaviour of the radial velocities for both emission and absorption lines, and the spectral changes between outburst and quiescence states are described and found to agree with evidence gathered at more conventional wavelengths. The wind outflow signatures and their variability are investigated, with multi-components detected in S Doradus. Photoionisation modelling of the rich emission line spectrum of R 127 shows evidence of a massive detached ionised shell that was ejected during the 1982-2000 outburst. Surface inhomogeneities in the nuclear-processed material, brought to the surface by heavy mass loss, could have been observed in S Doradus, even if alternative explanations are possible. We also detect the transition from quiescence to outburst state in R 71. Finally, our spectrum of R 84 offers one of the clearest views of its cool companion.

Abstract Copyright:

Journal keyword(s): stars: emission-line, Be - stars: winds, outflows - stars: Wolf-Rayet - galaxies: Magellanic Clouds - surveys

CDS comments: HD 269929 erroneously identified as RMC 143.

Simbad objects: 17

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Number of rows : 17

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10994 1
2 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5164 1
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5720 1
4 SN 2005gj SN* 03 01 11.96 -00 33 13.9   18.6       SNIapec 174 1
5 HD 269006 s*b 05 02 07.3944119328 -71 20 13.118657760 9.93 10.60 10.55 10.43 10.38 LBV 232 0
6 HD 269216 Em* 05 13 30.7809925326 -69 32 23.648218945 10.227 10.84 11.123 10.96 10.573 OBe 39 0
7 HD 269227 WR* 05 13 54.2798782060 -69 31 46.659015245 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 151 0
8 V* S Dor sg* 05 18 14.3572490675 -69 15 01.148131817 9.08 10.39 10.25 9.74 9.14 A5Iaeq 346 0
9 HD 269445 WR* 05 22 59.7854939490 -68 01 46.634598597 10.79 11.77 11.520 11.41 10.979 Ofpe/WN9 109 0
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14927 1
11 HD 269858 s*b 05 36 43.6942807271 -69 29 47.449383685   10.24 10.15 9.95 9.05 LBV 266 2
12 CPD-69 463 s*y 05 38 51.6167474749 -69 08 07.314653596 11.93 12.45 12.014     F7Ia 80 1
13 * eta Car Em* 10 45 03.5455050 -59 41 03.951060 6.37 7.034 6.21 4.90 4.41 OBepec 2216 0
14 V* AG Car WR* 10 56 11.5779283438 -60 27 12.809532379 7.00 7.57 6.96 7.73   WN11h 593 0
15 Cl Westerlund 1 OpC 16 47 04.00 -45 51 04.9           ~ 474 0
16 * P Cyg s*b 20 17 47.2020844 +38 01 58.552724 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1132 1
17 NAME Local Group GrG ~ ~           ~ 7027 0

    Equat.    Gal    SGal    Ecl

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2020.09.18-10:35:55

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