2001A&A...366..508V


Query : 2001A&A...366..508V

2001A&A...366..508V - Astronomy and Astrophysics, volume 366, 508-531 (2001/2-1)

S Doradus variables in the Galaxy and the Magellanic Clouds.

VAN GENDEREN A.M.

Abstract (from CDS):

The goal in writing this paper is five fold: (1) to summarize the scientific achievements in the 20th century on S Dor variables (or LBVs); (2) to present an inventory of these variables in the Galaxy and the Magellanic Clouds with a description of their physical state and instability properties; (3) to emphasize the photometric achievements of the various types of instabilities. Generally this seems to be a neglected item resulting in a number of misunderstandings continuously wandering through literature; (4) to investigate the structure of the S Dor-area on the HR-diagram; (5) to estimate the total numbers of S Dor variables in the three stellar systems. The position of the strong active S Dor variables in minimum brightness obey the following linear relation on the HR-diagram:logL/L=1.37logTeff-0.03. The relatively small dispersion of less active and supposed ex- and dormant S Dor variables with respect to this relation is twice as large at the blue side than at the red side. This might be caused by evolution to the WR stage and/or to high rotation. S Dor variables can be subject to five types of instabilities: the very rare genuine eruptive episodes (the ``SD-eruptions''), two different brightening phases caused by slow pulsations (the ``SD-phases''): one on a time scale of years, the other on a time scale of decades at a more or less constant luminosity and two types of microvariations: one on a time scale of weeks, the other on a time scale of about 100d. So far, no periodicities of light curve characteristics of any of these instabilities have ever been found. The durations of active and non-active stages are estimated for about half of the sample based on scattered magnitude estimations such as from historical records, and on modern monitoring campaigns. It would be a misunderstanding to believe that all S Dor variables should be always spectacular. It is estimated that most of them will not be spectacular at all for at least 70% of their lifetime as an S Dor variable.

Abstract Copyright:

Journal keyword(s): catalogue - stars: variables - stars: supergiants

VizieR on-line data: <Available at CDS (J/A+A/366/508): stars table1 notes1 table2 notes2 table3 notes3 tab le16 refs>

CDS comments: Par. 1.3, Sk -69 266 misprint for -67 266 (= LHA 120-S 61). Table 'star s.dat' : SIMBAD designation for Cyg OB2 12 is Schulte 12. HD 269929 erroneously identified as RMC 143.

Simbad objects: 61

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Number of rows : 61
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12012 1
2 BASW 19 s*b 00 43 33.0861943080 +41 12 10.311568308 16.363 17.338 17.325 17.172 17.257 LBV 76 0
3 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] 81 1
4 LHA 115-S 18 LP* 00 54 09.5410003368 -72 41 43.289017440 12.94 13.48 13.82   12.55 B[e] 80 0
5 HD 5980 WR* 00 59 26.5838833944 -72 09 53.927337312   11.13 11.31   11.029 WN4+O7I: 376 1
6 HD 6884 s*b 01 07 18.2182685856 -72 28 03.657105156   10.32 10.2     B9Ia0ek 119 0
7 [HS53] A s*y 01 32 32.8025598888 +30 30 25.003726668 20.1 19.9 19.1 18.6 17.7 F8Ia 53 0
8 [HS53] C s*b 01 33 35.1032018424 +30 36 00.286017732 15.543 16.531 16.429 16.297 16.137 LBV 66 0
9 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5568 1
10 BD+56 559 Be* 02 21 18.0751032000 +57 18 22.097122308   10.33 9.882     B1IIIe 39 0
11 SN 1961V SN* 02 43 36.42 +37 20 43.6   12.7 12.5     SNIIpec? 202 2
12 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6487 1
13 HD 269006 s*b 05 02 07.3942092168 -71 20 13.116800076 9.93 10.60 10.55 10.43 10.38 LBV 244 0
14 HD 268939 s?b 05 04 14.9089614288 -67 15 05.254922232   11.07 11.03 11.12   B:Ie 37 0
15 HD 269050 s*b 05 07 20.4218668824 -68 32 08.569322196 10.593 11.581 11.54 11.46 11.55 B0Ia(e?) 66 0
16 HD 269128 s*b 05 10 22.7893360416 -68 46 23.816621928 9.77 10.52 10.412 10.29 10.268 B2.5Ieq 99 0
17 HD 269216 Em* 05 13 30.7805703864 -69 32 23.647476948 10.227 10.84 11.123 10.96 10.573 OBe 46 0
18 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
19 HD 269227 WR* 05 13 54.2756276088 -69 31 46.665067440 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 156 0
20 HD 269321 s*b 05 17 56.0734487568 -69 16 03.809703252 10.28 10.93 10.84 10.53 10.342 B5Iae 63 0
21 V* S Dor sg* 05 18 14.3570612088 -69 15 01.149576912 9.08 10.39 10.25 9.74 9.14 A5Iaeq 366 0
22 HD 269445 WR* 05 22 59.7855849168 -68 01 46.635948408 10.79 11.77 11.520 11.41 10.979 Ofpe/WN9 117 0
23 HD 269582 WR* 05 27 52.6621673400 -68 59 08.488879836 12.206 10.818 11.093 12.70 11.234 WN10h 100 0
24 HD 269604 sg* 05 28 31.3672496208 -68 53 55.749735564   10.87 10.74     A1Ia0 33 0
25 HD 269662 sg* 05 30 51.4749432240 -69 02 58.590657600 10.23 10.52 10.28 10.40 10.390 A0Ia 98 0
26 HD 269687 WR* 05 31 25.5247745448 -69 05 38.556251700 10.86 11.78 11.87 12.05   WN11h 105 0
27 HD 269700 s*b 05 31 52.2818122296 -68 32 38.857949016 9.71 10.56 10.54 10.38 10.38 B1.5Iaeq 80 0
28 HD 37836 Em* 05 35 16.6328047632 -69 40 38.439373260 9.87 10.736 10.599 10.73 10.164 B0e(q) 78 0
29 HD 269858 s*b 05 36 43.6936418088 -69 29 47.451149232   10.24 10.15 9.95 9.05 LBV 277 2
30 HD 269859 s*b 05 36 47.1875018688 -69 29 52.090414152 9.940 10.761 10.730 11.06   B1Ia 49 1
31 CPD-69 463 s*y 05 38 51.6161224200 -69 08 07.314706104 11.93 12.45 12.014     F7Ia 87 1
32 RMC 149 * 05 39 58.7447958816 -69 44 04.073554644 11.645 12.442 12.517   12.227 O8.5II((f)) 32 0
33 HD 38489 s*b 05 40 13.3208083008 -69 22 46.485962112 11.236 12.295 11.93 11.79 10.891 B[e] 84 1
34 SK -69 279 Em* 05 41 44.6553703752 -69 35 14.905767516 12.079 12.787 12.842 13.03 12.619 OB 49 0
35 LHA 120-S 61 WR* 05 45 51.9388258704 -67 14 25.937264544 10.870 11.86 11.95 12.09 11.931 WN11h 80 0
36 SN 1954J SN* 07 36 56.20 +65 37 52.3   16.3 16.50     SNIIpec? 91 2
37 HD 80077 s*b 09 15 54.7869062472 -49 58 24.575734452 10.50 10.29 9.00 7.89   B2Ia+e 134 0
38 HD 90177 s*b 10 22 53.8430096928 -59 37 28.363616256 9.16 9.66 8 8.15   LBV 320 0
39 * eta Car Em* 10 45 03.5377808928 -59 41 04.051599720 6.37 7.03 6.48 4.90 4.41 OBepec 2350 0
40 WRAY 15-682 WR* 10 53 59.5777329720 -60 26 44.361095316   11.64 10.85 10.56   WN11h 144 3
41 V* AG Car WR* 10 56 11.5781414448 -60 27 12.810673260 7.00 7.57 6.96 7.73   WN11h 615 0
42 MR 35 s*b 11 08 40.0634208096 -60 42 51.721320060   12.33 10.20 11.66   LBV 124 0
43 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.70 10.66     B1.5Iaeq 650 0
44 HD 148937 SB* 16 33 52.3869185520 -48 06 40.476418740 6.49 7.12 6.71 7.61   O6f?p 374 4
45 * zet01 Sco s*b 16 53 59.7271314888 -42 21 43.307334468 4.80 5.31 4.79 4.32 3.86 B1Ia-0ek 361 0
46 HD 326823 WR* 17 06 53.9045282184 -42 36 39.704037840 9.68 9.87 9.03 9.51   WNpec 77 1
47 HD 157038 s*b 17 22 39.2179927464 -37 48 16.699933296 6.99 7.20 6.44 5.70 5.15 B3Iap 103 0
48 HD 160529 sg* 17 41 59.0261939376 -33 30 13.704456780 8.17 7.87 6.66 5.50 4.51 A2Ia 192 1
49 [FMM95] 3 s*b 17 46 15.240 -28 50 03.58           LBV 147 1
50 HD 316285 s*b 17 48 14.0372119152 -28 00 53.121269592 11.88 11.27 9.60 9.28   B0Ieq 186 2
51 HD 168607 s*b 18 21 14.8856951904 -16 22 31.763755236 10.23 9.82 8.28 8.55   B9Iaep 183 1
52 HD 168625 s*b 18 21 19.5484021368 -16 22 26.075142156 10.15 9.78 8.37 8.76   B6Iap 269 2
53 IRAS 18344-0632 PN? 18 37 05.20632 -06 29 37.9752           ~ 57 0
54 BD-13 5061 sg* 18 39 26.1022628664 -13 50 47.159703852 10.86 10.75 9.89 9.98   B9Ia 37 1
55 BD+14 3887 Em* 19 21 33.9771479376 +14 52 56.910478296 11.86 11.3 9.89     B3Ibe 88 0
56 IRC +10420 pA* 19 26 48.0979492536 +11 21 16.758531216   13.98 11.66     F8Ia+e 466 0
57 * 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 1157 1
58 IRAS 20298+4011 Em* 20 31 42.2846664600 +40 21 59.074415640     15.1     B:I[e] 90 0
59 Schulte 12 s*b 20 32 40.9572199728 +41 14 29.279036940 16.1 14.45 11.702     B3-4Ia+ 399 0
60 V* V509 Cas LP* 23 00 05.1012218544 +56 56 43.350876312 8.01 6.68 5.13 3.96 3.11 G4_0 324 0
61 * rho Cas LP* 23 54 23.0325302520 +57 29 57.774737400 7.00 5.85 4.59 3.63 2.89 G2_0 377 0

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2022.11.28-10:08:53

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