2021A&A...646A.164J

Query : 2021A&A...646A.164J

2021A&A...646A.164J - Astronomy and Astrophysics, volume 646A164-164 (2021/2-1)

BEAST begins: sample characteristics and survey performance of the B-star Exoplanet Abundance Study.

JANSON M., SQUICCIARINI V., DELORME P., GRATTON R., BONNEFOY M., REFFERT S., MAMAJEK E.E., ERIKSSON S.C., VIGAN A., LANGLOIS M., ENGLER N., CHAUVIN G., DESIDERA S., MAYER L., MARLEAU G.-D., BOHN A.J., SAMLAND M., MEYER M., D'ORAZI V., HENNING T., QUANZ S., KENWORTHY M. and CARSON J.C.

Abstract (from CDS):

While the occurrence rate of wide giant planets appears to increase with stellar mass at least up through the A-type regime, B-type stars have not been systematically studied in large-scale surveys so far. It therefore remains unclear up to what stellar mass this occurrence trend continues. The B-star Exoplanet Abundance Study (BEAST) is a direct imaging survey with the extreme adaptive optics instrument SPHERE, targeting 85 B-type stars in the young Scorpius-Centaurus (Sco-Cen) region with the aim to detect giant planets at wide separations and constrain their occurrence rate and physical properties. The statistical outcome of the survey will help determine if and where an upper stellar mass limit for planet formation occurs. In this work, we describe the selection and characterization of the BEAST target sample. Particular emphasis is placed on the age of each system, which is a central parameter in interpreting direct imaging observations. We implement a novel scheme for age dating based on kinematic sub-structures within Sco-Cen, which complements and expands upon previous age determinations in the literature. We also present initial results from the first epoch observations, including the detections of ten stellar companions, of which six were previously unknown. All planetary candidates in the survey will need follow up in second epoch observations, which are part of the allocated observational programme and will be executed in the near future.

Abstract Copyright: © ESO 2021

Journal keyword(s): planets and satellites: detection - stars: early-type - brown dwarfs

VizieR on-line data: <Available at CDS (J/A+A/646/A164): table1.dat-table6.dat>

CDS comments: Fig.10 WHS 1256ABb not identified (incomplete format)

Simbad objects: 111

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Number of rows : 111
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 TYC 621-21-1 * 01 41 10.1907787272 +09 41 40.887901896   11.49 10.98     ~ 6 0
2 2MASS J07542987+7909546 BD* 07 54 29.87616 +79 09 54.6084           T2p? 16 0
3 * L Car * 10 22 58.1465809448 -66 54 05.385596996 4.35 4.86 4.99     B8V 120 0
4 HD 93563 Be* 10 46 57.4734035534 -56 45 25.890897908 4.82 5.15 5.23     B5III 81 0
5 HD 97583 * 11 12 45.2069995560 -64 10 11.171162136   5.136 5.219     B8V 56 0
6 HD 104080 * 11 59 10.6803426432 -45 49 55.998043104   6.272 6.337     B8/9V 43 0
7 HD 104900 * 12 04 45.2597380488 -59 15 11.703277656 5.94 6.11 6.20     B9Vn 37 0
8 TWA 27B BD* 12 07 33.50 -39 32 54.4           L3 321 0
9 HD 105382 Be* 12 08 05.2222663992 -50 39 40.575451536 3.65 4.32 4.47 4.53 4.70 B5V 186 0
10 * del Cru Pu* 12 15 08.7184790676 -58 44 56.126676618 1.63 2.568 2.752     B2IV 223 1
11 HD 106906B BD* 12 17 52.61 -55 58 26.6           L2.5 115 0
12 * zet Cru Pu* 12 18 26.2420745160 -64 00 11.107331280 3.26 3.90 4.05     B2/3V 120 0
13 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 565 1
14 HD 107696 * 12 22 49.4317993896 -57 40 34.068874692   5.269 5.366     B7Vn 77 0
15 * G Cen Pu* 12 26 31.7600444794 -51 27 02.288916487 4.02 4.654 4.808     B3V(n) 93 0
16 * sig Cen ** 12 28 02.3821158564 -50 13 50.296708174 2.95 3.72 3.91 4.02 4.22 B2V 175 0
17 * u Cen Pu* 12 28 22.4671645056 -39 02 28.190507856   5.378 5.439     B8/9V 65 0
18 HD 109195 * 12 33 12.1871532408 -52 04 58.236967812   6.52 6.55     B9.5V 33 0
19 * alf Mus ** 12 37 11.0178886 -69 08 08.033239 1.62 2.484 2.649     B2IV 163 1
20 HD 110506 * 12 43 09.1786206456 -56 10 34.418250804   5.899 5.982     B7/8V 56 0
21 HD 110956 Pu* 12 46 22.7144465193 -56 29 19.735770746 3.86 4.462 4.620     B2/3V 130 0
22 * bet Cru bC* 12 47 43.26877 -59 41 19.5792 0.03 1.02 1.25 1.38 1.64 B1IV 360 1
23 HD 111774 Pu* 12 51 56.9310942840 -39 40 49.550426148   5.885 5.969     B7/8V 51 0
24 * mu.01 Cru Pu* 12 54 35.6242611666 -57 10 40.528916907 3.12 3.87 4.04 4.14 4.38 B2IV-V 159 0
25 * 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
26 * H Cen Pu* 12 57 04.3514246112 -51 11 55.512895560   5.088 5.159     B2IV 68 1
27 * f Cen Pu* 13 06 16.7036641232 -48 27 47.846528742 4 4.552 4.691     B4V 121 0
28 * ksi02 Cen SB* 13 06 54.6394033029 -49 54 22.487112422 3.29 4.08 4.27     B3V 150 0
29 * e Vir b Pl 13 16 46.5148594512 +09 25 26.960139646           ~ 127 1
30 GSC 08657-02326 ** 13 16 47.0624332008 -56 40 59.964615732   11.766 11.055 10.916   ~ 2 0
31 HD 115470 * 13 18 05.1042607440 -44 03 19.380018204   6.77 6.79     B9.5V 45 0
32 HD 115583 * 13 19 43.4213973864 -67 21 51.567613812   7.24 7.25     B9V 32 0
33 V* V964 Cen EB* 13 20 37.8253517448 -52 44 52.169369424 4.79 5.314 5.443     B5III/IV 90 0
34 HD 116434C BD* 13 24 36.13 -51 30 16.7           L5-7 123 1
35 HD 118354 * 13 37 23.4760845096 -46 25 40.432277640   5.787 5.889     B8V 56 0
36 * nu. Cen bC* 13 49 30.2765077433 -41 41 15.750707249 2.31 3.188 3.386     B2V 213 0
37 * 3 Cen ** 13 51 49.60136 -32 59 38.7067           B5III+B9IV 256 0
38 * N Cen Pu* 13 52 04.8623039016 -52 48 41.506341048   5.161 5.257     B8V 56 0
39 * phi Cen Pu* 13 58 16.2661773764 -42 06 02.724906325 2.79 3.608 3.802     B2IV 166 0
40 * 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
41 * chi Cen bC* 14 06 02.7680367867 -41 10 46.678474802 3.4 4.155 4.343     B2V 231 1
42 HD 123247 * 14 07 40.8080262960 -48 42 14.498997408 6.390 6.415 6.418     B9.5V 42 0
43 CD-40 8434c Pl 14 08 10.1545500744 -41 23 52.573291080           ~ 240 0
44 CD-40 8434b Pl 14 08 10.1545500744 -41 23 52.573291080           ~ 295 0
45 HD 124367 Be* 14 14 57.1383087504 -57 05 10.049405532 4.36 4.99 5.07     B4Vne 153 0
46 * a Cen Ro* 14 23 02.2387240143 -39 30 42.544559700 3.50 4.24 4.42 4.53 4.70 B2V 289 0
47 HD 126475 * 14 26 49.8732019056 -39 52 26.344253496   6.263 6.346     B9V 48 0
48 * eta Cen Be* 14 35 30.4241610 -42 09 28.170782 1.30 2.12 2.31 2.41 2.59 B2Ve 361 1
49 HD 127971 Pu* 14 35 31.4790402792 -41 31 02.792148564   5.79 5.87     B7V 65 0
50 HD 128207 Pu* 14 36 44.1322515504 -40 12 41.696287632   5.624 5.736     B8V 63 0
51 * 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
52 * alf Lup bC* 14 41 55.7557866 -47 23 17.515486 1.22 2.126 2.286     B1.5III 247 0
53 * b Cen ** 14 41 57.5905450998 -37 47 36.580200460 3.14 3.83 4.00 4.11 4.26 B2.5V 159 0
54 HD 132094 * 14 58 24.2646760512 -37 21 44.902241316   7.25 7.25     B9V 37 0
55 HD 132955 Pu* 15 02 59.2764966384 -32 38 35.849039748 4.69 5.319 5.437     B3V 102 0
56 HD 133937 Pu* 15 08 39.1980242592 -42 52 04.522458612   5.701 5.820     B5/7V 87 0
57 * e Lup SB* 15 12 49.5875193435 -44 30 01.490425801 3.98 4.638 4.806     B3IV/V 90 0
58 HD 135174 * 15 15 19.6424596176 -44 08 58.180002576   6.66 6.73     B9IV 34 0
59 HD 135454 * 15 16 37.1496306960 -42 22 12.565909668   6.716 6.754     B9.5V 47 0
60 V* GG Lup SB* 15 18 56.3746551072 -40 47 17.596548564   5.495 5.604 5.613   B7V 146 0
61 * del Lup bC* 15 21 22.3138254072 -40 38 51.109328940 2.12 2.995 3.190     B1.5IV 230 0
62 * phi02 Lup * 15 23 09.3506362429 -36 51 30.557900083 3.77 4.39 4.54 4.60 4.74 B4V 139 0
63 NAME Upper Centaurus Lupus MGr 15 24 -41.9           ~ 567 1
64 HD 137432 SB* 15 27 18.1304610624 -36 46 03.214731900 4.69 5.30 5.45 5.54 5.71 B5V 102 0
65 HD 138221 * 15 31 50.2295015376 -32 52 52.015213236   6.540 6.488     B7V 54 0
66 * zet04 Lib V* 15 32 55.2212555688 -16 51 10.241221140 4.61 5.355 5.499     B3V 121 0
67 HD 139233 * 15 38 32.6385326520 -39 09 38.520773532   6.506 6.575     B9V 57 0
68 * tau Lib SB* 15 38 39.3694957 -29 46 39.895604   3.481 3.642     B2.5V 170 0
69 HD 139486 * 15 39 00.0577560912 -19 43 57.199562616   7.67 7.63     B9V 71 0
70 HD 141168 Pu* 15 50 07.0836208248 -53 12 35.174581380 5.51 5.72 5.78     B9V(n) 54 0
71 HD 142256 Ro* 15 55 22.8856119768 -44 31 33.651274656   6.94 6.96     B8V 38 0
72 * 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
73 HD 142883 Ce* 15 57 40.4636201088 -20 58 59.082560004   5.839 5.836     B3V 156 0
74 * 48 Lib Be* 15 58 11.3682502453 -14 16 45.681109093 4.61 4.77 4.87 4.91 4.96 B5IIIp_sh 446 0
75 HD 143022 * 15 59 30.8817322272 -40 51 54.598206780   8.32 8.18     B9.5V 29 0
76 * eta Lup bC? 16 00 07.3279160436 -38 23 48.138224969 2.36 3.19 3.41     B2.5IV 186 0
77 HD 143567 * 16 01 55.4547295632 -21 58 49.398900888   7.27 7.19 7.87   B9Van 145 0
78 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
79 HD 143956 * 16 04 00.2383602864 -19 46 02.926413336   7.91 7.77     B9Van 63 0
80 NAME UScoCTIO 108B BD? 16 05 54.09504 -18 18 48.8592           ~ 51 0
81 * tet Lup Pu* 16 06 35.5439828160 -36 48 08.173906632 3.36 4.027 4.201     B2.5Vn 130 0
82 * ome Sco bC* 16 06 48.4249866846 -20 40 09.079866331 3.10 3.92 3.97 3.91 3.99 B1V 492 0
83 HD 144586 * 16 07 14.9283734928 -17 56 09.731015556   7.91 7.81     A1IV-VkB9 55 0
84 HD 144591 * 16 08 04.3798309776 -36 13 54.598017648   6.69 6.74     B9V 39 0
85 HD 144844B LM* 16 08 43.86 -23 41 08.8           ~ 13 0
86 RX J1609.5-2105B LM* 16 09 30.377 -21 04 56.97           ~ 123 0
87 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
88 * c02 Sco SB* 16 12 18.2046168820 -27 55 34.953285603 3.66 4.413 4.568     B2V 201 0
89 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
90 HD 147001 V* 16 21 27.0327351600 -48 11 19.041336276   6.456 6.498     B7V 39 0
91 HD 147152 Pu* 16 22 27.9955859229 -49 34 20.468562886 4.86 5.257 5.318     B3V 76 0
92 * chi Oph Be* 16 27 01.4355697915 -18 27 22.499961252 3.95 4.71 4.43 3.97 3.73 B2Vne 624 0
93 * 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
94 HD 149274 * 16 35 13.8392866176 -35 43 28.725611232   6.57 6.64     B9V 32 0
95 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0V 959 0
96 HD 149425 * 16 36 28.6730639112 -40 18 10.916595000   7.20 7.10     B9V 48 0
97 V* V1003 Sco Pu* 16 38 26.2919895528 -43 23 54.328921872 5.2 5.81 5.83     B2V 88 0
98 HD 149914 Or* 16 38 28.6527873384 -18 13 13.713126384   6.967 6.746     B9.5IV 82 0
99 BD+74 681 * 16 42 20.3682332712 +74 28 30.568879848   9.59 8.55     K0 11 0
100 HD 150638 * 16 43 38.7239230704 -32 06 21.406227192   6.374 6.452     B8V 56 0
101 HD 150591 * 16 43 54.0820649376 -41 06 48.038658840   6.049 6.116     B6/7V 62 0
102 HD 150742 * 16 44 42.5926704048 -40 50 22.830249192   5.528 5.628     B3V 84 0
103 * mu.01 Sco Be* 16 51 52.2283548696 -38 02 50.638070400 1.98 2.82 2.98     B1V+B 305 0
104 * mu.02 Sco bC? 16 52 20.1453198 -38 01 03.125839 2.52 3.343 3.542     B2IV 161 0
105 * zet Del B BD* 20 35 19.05 +14 40 15.6           L5 16 0
106 V* HN Peg B BD* 21 44 28.47168 +14 46 07.7988           T2.5 143 0
107 HD 206893b Pl 21 45 21.9052532928 -12 47 00.060804636           ~ 48 0
108 HD 218396c Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 312 1
109 HD 218396b Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 323 1
110 HD 218396d Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 286 1
111 HD 218396e Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 255 1

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