2022MNRAS.515..828S

Query : 2022MNRAS.515..828S

2022MNRAS.515..828S - Mon. Not. R. Astron. Soc., 515, 828-840 (2022/September-1)

Pulsating B stars in the Scorpius-Centaurus Association with TESS.

SHARMA A.N., BEDDING T.R., SAIO H. and WHITE T.R.

Abstract (from CDS):

We study 119 B stars located in the Scorpius-Centaurus Association using data from NASA's TESS Mission. We see pulsations in 81 stars (68 per cent) across the full range of effective temperatures. In particular, we confirm previous reports of low-frequency pulsations in stars whose temperatures fall between the instability strips of SPB stars (slowly pulsating B stars) and δ Scuti stars. By taking the stellar densities into account, we conclude that these cannot be p modes and confirm previous suggestions that these are probably rapidly rotating SPB stars. We also confirm that they follow two period-luminosity relations that are consistent with prograde sectoral g modes that are dipole (l = m = 1) and quadrupole (l = m = 2), respectively. One of the stars (ξ2 Cen) is a hybrid pulsator that shows regular spacings in both g and p modes. We confirm that α Cru has low-amplitude p-mode pulsations, making it one of the brightest β Cephei stars in the sky. We also find several interesting binaries, including a very short-period heartbeat star (HD 132094), a previously unknown eclipsing binary (π Lup), and an eclipsing binary with high-amplitude tidally driven pulsations (HR 5846). The results clearly demonstrate the power of TESS for studying variability in stellar associations.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: oscillations - open clusters and associations: individual: Scorpius-Centaurus - binaries: eclipsing - asteroseismology

Simbad objects: 131

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Number of rows : 131
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 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
2 * 20 Tau PM* 03 45 49.6081548365 +24 22 03.877565838 3.40 3.80 3.87 3.85 3.90 B7III 451 1
3 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
4 * L Car * 10 22 58.1465809448 -66 54 05.385596996 4.35 4.86 4.99     B8V 120 0
5 HD 93563 Be* 10 46 57.4734035534 -56 45 25.890897908 4.82 5.15 5.23     B5III 81 0
6 HD 95324 * 10 59 14.0086912778 -61 19 14.733649283   6.113 6.180 7.287   B8IV 54 0
7 HD 97583 * 11 12 45.2069995560 -64 10 11.171162136   5.136 5.219     B8V 56 0
8 * pi. Cen ** 11 21 00.4170807171 -54 29 27.964002014           B5Vn 127 0
9 NGC 3766 OpC 11 36 13.5 -61 36 42   5.66 5.3     ~ 222 0
10 HD 103079 Pu* 11 51 51.2242408032 -65 12 21.276443520 4.19 4.85 4.99     B4V 86 0
11 HD 104080 * 11 59 10.6803426432 -45 49 55.998043104   6.272 6.337     B8/9V 43 0
12 HD 104600 * 12 02 37.6925929920 -69 11 32.239021344   5.800 5.876     B9V 71 0
13 HD 104839 * 12 04 16.7047787736 -51 28 21.055598472   6.43 6.47     B9.5V 37 0
14 HD 104900 * 12 04 45.2597380488 -59 15 11.703277656 5.94 6.11 6.20     B9Vn 37 0
15 HD 105382 Be* 12 08 05.2222663992 -50 39 40.575451536 3.65 4.32 4.47 4.53 4.70 B5V 186 0
16 * rho Cen Pu* 12 11 39.1197479712 -52 22 06.384420264 3.20 3.81 3.96 4.05 4.21 B3V 136 0
17 * del Cru Pu* 12 15 08.7184790676 -58 44 56.126676618 1.63 2.568 2.752     B2IV 223 1
18 * zet Cru Pu* 12 18 26.2420745160 -64 00 11.107331280 3.26 3.90 4.05     B2/3V 120 0
19 HD 107301 * 12 20 28.2217292304 -65 50 33.568205244   6.149 6.186     B9V 57 0
20 HD 107696 * 12 22 49.4317993896 -57 40 34.068874692   5.269 5.366     B7Vn 77 0
21 * G Cen Pu* 12 26 31.7600444794 -51 27 02.288916487 4.02 4.654 4.808     B3V(n) 93 0
22 * alf Cru SB* 12 26 35.89522 -63 05 56.7343           B0.5IV+B1V 99 0
23 * alf01 Cru * 12 26 35.896 -63 05 56.73   1.10 1.28     B0.5IV 150 0
24 * alf02 Cru * 12 26 36.442 -63 05 58.28   1.41 1.58     B1V 75 0
25 * sig Cen ** 12 28 02.3821158564 -50 13 50.296708174 2.95 3.72 3.91 4.02 4.22 B2V 175 0
26 * u Cen Pu* 12 28 22.4671645056 -39 02 28.190507856   5.378 5.439     B8/9V 65 0
27 HD 109195 * 12 33 12.1871532408 -52 04 58.236967812   6.52 6.55     B9.5V 33 0
28 * alf Mus ** 12 37 11.0178886 -69 08 08.033239 1.62 2.484 2.649     B2IV 163 1
29 HD 110020 El? 12 39 55.8519065736 -66 30 40.090934880   6.199 6.252     B8V 59 0
30 HD 110461 * 12 42 49.7636060376 -55 56 49.299160092   6.029 6.057     B9V 50 0
31 HD 110506 * 12 43 09.1786206456 -56 10 34.418250804   5.899 5.982     B7/8V 56 0
32 HD 110956 Pu* 12 46 22.7144465193 -56 29 19.735770746 3.86 4.462 4.620     B2/3V 130 0
33 * bet Cru bC* 12 47 43.26877 -59 41 19.5792 0.03 1.02 1.25 1.38 1.64 B1IV 360 1
34 * p Cen Pu* 12 50 41.1633885768 -33 59 57.652650456   4.863 4.894     B9V 56 0
35 HD 111774 Pu* 12 51 56.9310942840 -39 40 49.550426148   5.885 5.969     B7/8V 51 0
36 * mu.02 Cru Be* 12 54 36.8841589536 -57 10 07.193918388 4.59 5.09 5.20 5.00 5.06 B5Vne 189 0
37 * lam Cru Be* 12 54 39.1827302030 -59 08 48.129223088 3.86 4.451 4.602     B3Vne 150 1
38 * H Cen Pu* 12 57 04.3514246112 -51 11 55.512895560   5.088 5.159     B2IV 68 1
39 * f Cen Pu* 13 06 16.7036641232 -48 27 47.846528742 4 4.552 4.691     B4V 121 0
40 * ksi02 Cen SB* 13 06 54.6394033029 -49 54 22.487112422 3.29 4.08 4.27     B3V 150 0
41 HD 113902 * 13 07 38.2846328832 -53 27 35.149793112   5.629 5.698     B8/9V 73 0
42 HD 114529 El? 13 12 17.5729759027 -59 55 14.026825185 4.11 4.500 4.593 6.33   B7V 90 0
43 HD 114772 ** 13 13 23.35287 -50 41 59.3747   5.89 5.90     B9.5V 52 0
44 HD 115470 * 13 18 05.1042607440 -44 03 19.380018204   6.77 6.79     B9.5V 45 0
45 HD 115583 * 13 19 43.4213973864 -67 21 51.567613812   7.24 7.25     B9V 32 0
46 V* V964 Cen EB* 13 20 37.8253517448 -52 44 52.169369424 4.79 5.314 5.443     B5III/IV 90 0
47 HD 115988 * 13 21 25.9075412520 -43 38 03.576866676   6.647 6.662     B9V 35 0
48 * J Cen ** 13 22 37.9331015842 -60 59 18.170162109 3.81 4.369 4.509     B3V 114 0
49 HD 117484 * 13 31 30.9674020680 -46 44 06.838726200   7.56 7.53     B9.5V 36 0
50 HD 118354 * 13 37 23.4760845096 -46 25 40.432277640   5.787 5.889     B8V 56 0
51 * Q Cen ** 13 41 44.77217 -54 33 33.9275           B8.5Vn+A2.5Va 56 0
52 * nu. Cen bC* 13 49 30.2765077433 -41 41 15.750707249 2.31 3.188 3.386     B2V 213 0
53 * mu. Cen Be* 13 49 36.9886872492 -42 28 25.440271450 2.37 3.27 3.43 3.41 3.50 B2Vnpe 453 0
54 * 3 Cen ** 13 51 49.60136 -32 59 38.7067           B5III+B9IV 256 0
55 * N Cen Pu* 13 52 04.8623039016 -52 48 41.506341048   5.161 5.257     B8V 56 0
56 HD 121190 Pu* 13 55 12.1422664176 -52 09 38.957327676 5.33 5.63 5.71     B9V 83 0
57 * phi Cen Pu* 13 58 16.2661773764 -42 06 02.724906325 2.79 3.608 3.802     B2IV 166 0
58 * ups01 Cen Pu* 13 58 40.7486851 -44 48 12.908967 2.87 3.67 3.87 4.01 4.22 B2IV-V 157 0
59 * bet Cen bC* 14 03 49.40535 -60 22 22.9266     0.58     B1III 371 0
60 * chi Cen bC* 14 06 02.7680367867 -41 10 46.678474802 3.4 4.155 4.343     B2V 231 1
61 HD 123247 * 14 07 40.8080262960 -48 42 14.498997408 6.390 6.415 6.418     B9.5V 42 0
62 HD 123445 * 14 08 51.8860395336 -43 28 14.799908604   6.11 6.17     B9V 72 0
63 HD 124367 Be* 14 14 57.1383087504 -57 05 10.049405532 4.36 4.99 5.07     B4Vne 153 0
64 * a Cen Ro* 14 23 02.2387240143 -39 30 42.544559700 3.50 4.24 4.42 4.53 4.70 B2V 289 0
65 HD 126135 * 14 24 43.9159794840 -40 45 18.590339412   6.90 6.96     B8V 54 0
66 * tau01 Lup bC* 14 26 08.2244287979 -45 13 17.123883210 3.68 4.393 4.553     B2IV 158 0
67 HD 126475 * 14 26 49.8732019056 -39 52 26.344253496   6.263 6.346     B9V 48 0
68 * l Hya ** 14 28 10.4272263008 -29 29 29.896774774 4.49 4.90 4.97     B7/8V 71 0
69 * eta Cen Be* 14 35 30.4241610 -42 09 28.170782 1.30 2.12 2.31 2.41 2.59 B2Ve 361 1
70 HD 127971 Pu* 14 35 31.4790402792 -41 31 02.792148564   5.79 5.87     B7V 65 0
71 HD 128207 Pu* 14 36 44.1322515504 -40 12 41.696287632   5.624 5.736     B8V 63 0
72 * rho Lup V* 14 37 53.2261607412 -49 25 32.981831985 3.34 3.90 4.05 4.14 4.25 B3/4V 112 0
73 HD 128819 * 14 40 17.6471313096 -40 50 30.050532420   6.580 6.649     B8/9V 48 0
74 * alf Lup bC* 14 41 55.7557866 -47 23 17.515486 1.22 2.126 2.286     B1.5III 247 0
75 * b Cen ** 14 41 57.5905450998 -37 47 36.580200460 3.14 3.83 4.00 4.11 4.26 B2.5V 159 0
76 * omi Lup ** 14 51 38.3028905 -43 34 31.296546 3.59 4.164 4.313     B5IV 123 0
77 HD 131120 Pu* 14 52 51.0731473122 -37 48 11.382138696 4.11 4.855 5.015     B7IIIp 134 0
78 HD 132094 * 14 58 24.2646760512 -37 21 44.902241316   7.25 7.25     B9V 37 0
79 * bet Lup ** 14 58 31.92536 -43 08 02.2699 1.59 2.46 2.68 2.78 2.95 B2IV 197 0
80 * kap Cen bC* 14 59 09.6849382 -42 06 15.106919 2.15 2.93 3.11     B2IV 212 0
81 HD 132238 Pu* 14 59 13.9252308960 -37 52 52.436292816   6.39 6.47     B7V 56 0
82 HD 132955 Pu* 15 02 59.2764966384 -32 38 35.849039748 4.69 5.319 5.437     B3V 102 0
83 * pi. Lup A * 15 05 07.087230 -47 03 04.54154   4.44 4.58     B5V 73 0
84 * pi. Lup ** 15 05 07.2349623163 -47 03 03.828968181 3.17 3.75 3.89 3.99 4.10 B5 106 0
85 HD 133937 Pu* 15 08 39.1980242592 -42 52 04.522458612   5.701 5.820     B5/7V 87 0
86 HD 135454 * 15 16 37.1496306960 -42 22 12.565909668   6.716 6.754     B9.5V 47 0
87 * mu. Lup Be* 15 18 32.02296 -47 52 30.9957 3.82         B8Ve 112 0
88 V* GG Lup SB* 15 18 56.3746551072 -40 47 17.596548564   5.495 5.604 5.613   B7V 146 0
89 * del Lup bC* 15 21 22.3138254072 -40 38 51.109328940 2.12 2.995 3.190     B1.5IV 230 0
90 HD 136482 * 15 22 11.2555089192 -37 38 08.244115296   6.58 6.64     B8/9V 53 0
91 HD 137432 SB* 15 27 18.1304610624 -36 46 03.214731900 4.69 5.30 5.45 5.54 5.71 B5V 102 0
92 HD 137919 ** 15 30 21.29078 -41 55 08.4957           B9.5V 31 0
93 HD 138221 * 15 31 50.2295015376 -32 52 52.015213236   6.540 6.488     B7V 54 0
94 HD 138564 * 15 34 20.8526631144 -39 20 57.149889792   6.328 6.349     B9V 41 0
95 * gam Lup ** 15 35 08.44835 -41 10 00.3247 1.76 2.586 2.765     B2IV 187 0
96 * d Lup Be* 15 35 53.24806 -44 57 30.1982 3.68     6.70   B3V 129 0
97 HD 138923 ** 15 36 11.3631250416 -33 05 34.094759028   6.165 6.251     B8V 59 0
98 HD 139233 * 15 38 32.6385326520 -39 09 38.520773532   6.506 6.575     B9V 57 0
99 * tau Lib SB* 15 38 39.3694957 -29 46 39.895604   3.481 3.642     B2.5V 170 0
100 * psi02 Lup SB* 15 42 41.0197420380 -34 42 37.467073334 4.08 4.576 4.721     B5V 122 0
101 HD 140285 ** 15 44 22.67415 -41 49 08.7181   5.93 5.93     A0V+B 33 0
102 HD 140784 ** 15 46 44.2174303104 -34 40 56.830010556   5.481 5.600     B8V 63 0
103 HD 141327 * 15 49 43.1037975984 -32 48 29.830563612   7.46 7.46     B9V 47 0
104 HD 141168 Pu* 15 50 07.0836208248 -53 12 35.174581380 5.51 5.72 5.78     B9V(n) 54 0
105 HD 142250 * 15 54 30.1089445104 -27 20 19.085902512   6.07 6.10     B7V 122 0
106 HD 142256 Ro* 15 55 22.8856119768 -44 31 33.651274656   6.94 6.96     B8V 38 0
107 * rho Sco SB* 15 56 53.0772000457 -29 12 50.667996815 2.84 3.66 3.86 3.97 4.17 B2IV-V 221 0
108 HD 143022 * 15 59 30.8817322272 -40 51 54.598206780   8.32 8.18     B9.5V 29 0
109 * eta Lup bC? 16 00 07.3279160436 -38 23 48.138224969 2.36 3.19 3.41     B2.5IV 186 0
110 HD 143699 * 16 03 24.1895252119 -38 36 09.141541952 4.18 4.75 4.89 4.96 5.10 B5/7III/IV 154 0
111 HD 143927 * 16 04 42.3235078752 -37 48 58.070789280   7.05 7.06     B8/9V 43 0
112 * tet Lup Pu* 16 06 35.5439828160 -36 48 08.173906632 3.36 4.027 4.201     B2.5Vn 130 0
113 HD 144591 * 16 08 04.3798309776 -36 13 54.598017648   6.69 6.74     B9V 39 0
114 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
115 * 12 Sco ** 16 12 16.03911 -28 25 02.3122           B9V 79 0
116 * c02 Sco SB* 16 12 18.2046168820 -27 55 34.953285603 3.66 4.413 4.568     B2V 201 0
117 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
118 HD 147001 V* 16 21 27.0327351600 -48 11 19.041336276   6.456 6.498     B7V 39 0
119 HD 147628 ** 16 24 31.7543889048 -37 33 57.760482924 4.92 5.31 5.42     B8V 61 0
120 * N Sco V* 16 31 22.9344803220 -34 42 15.725494158 3.30 4.06 4.23 4.29 4.41 B2III-IV 151 0
121 HD 149274 * 16 35 13.8392866176 -35 43 28.725611232   6.57 6.64     B9V 32 0
122 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0V 959 0
123 HD 150638 * 16 43 38.7239230704 -32 06 21.406227192   6.374 6.452     B8V 56 0
124 HD 150591 * 16 43 54.0820649376 -41 06 48.038658840   6.049 6.116     B6/7V 62 0
125 HD 150742 * 16 44 42.5926704048 -40 50 22.830249192   5.528 5.628     B3V 84 0
126 HD 151109 * 16 47 01.6778010840 -39 32 01.941644076   6.94 7.00     B9IV/V 43 0
127 HD 151726 * 16 50 45.5185967856 -38 15 23.108562648   7.20 7.24     B9V 40 0
128 * mu.01 Sco Be* 16 51 52.2283548696 -38 02 50.638070400 1.98 2.82 2.98     B1V+B 305 0
129 * mu.02 Sco bC? 16 52 20.1453198 -38 01 03.125839 2.52 3.343 3.542     B2IV 161 0
130 HD 180642 bC* 19 17 14.8038514896 +01 03 33.904495728 7.83 8.47 8.29     B1.5II-III 107 0
131 * bet Cep bC* 21 28 39.5968513 +70 33 38.574681 2.05 3.01 3.23 3.33 3.55 B0.5IIIs 756 0

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