2001A&A...372..152H


Query : 2001A&A...372..152H

2001A&A...372..152H - Astronomy and Astrophysics, volume 372, 152-164 (2001/6-2)

Search for low-mass PMS companions around X-ray selected late B stars.

HUBRIG S., LE MIGNANT D., NORTH P. and KRAUTTER J.

Abstract (from CDS):

We have observed 49 X-ray-detected bright late B-type dwarfs to search for close low-mass pre-main sequence (PMS) companions using the European Southern Observatory's ADONIS (Adaptive Optics Near Infrared System) instrument. We announce the discovery of 21 new companions in 9 binaries, 5 triple, 4 quadruple system and 1 system consisting of five stars. The detected new companions have K magnitudes between 6.mag 5 and 17.mag 3 and angular separations ranging from 0.2" to 14.1" (18-2358AU).

Abstract Copyright:

Journal keyword(s): stars: binaries: visual - stars: early type - stars: pre-main-sequence - X-rays: stars

Simbad objects: 51

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Number of rows : 51
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * pi. Tuc * 00 20 39.0424293413 -69 37 29.705337534   5.450 5.499     B9V 65 0
2 * v Eri * 03 30 37.0582300 -05 04 30.523884   4.631 4.725     B9III 81 0
3 * tet Ret A * 04 17 40.2716944812 -63 15 19.488156357   5.96 6.05 7.16   B9IV 27 0
4 * ups04 Eri SB* 04 17 53.6624067 -33 47 54.056903 3.07 3.44 3.56 3.57 3.68 B9V 145 0
5 * 93 Tau * 04 40 03.4217323517 +12 11 51.403129601   5.319 5.445     B8IV 67 0
6 * 66 Eri a2* 05 06 45.6520865479 -04 39 18.590188141 4.89 5.06 5.12     B9V 144 1
7 * iot Lep ** 05 12 17.9019041 -11 52 09.186279 3.95 4.35 4.45     B7.5Vn 105 0
8 * mu. Lep a2* 05 12 55.9051909878 -16 12 19.653781382 2.78 3.18 3.29 3.30 3.42 B9IV:HgMn 266 1
9 * 31 Men EB* 05 30 13.8846449487 -84 47 06.364504172   6.169 6.186     B9.5IV/V 121 0
10 HD 36408 ** 05 32 14.14223 +17 03 29.2492           B7III 87 0
11 HD 40964 ** 06 02 17.1062791023 +01 41 38.597797220   6.527 6.561     B8V 37 0
12 * 12 CMa a2* 06 47 01.4837300198 -21 00 55.449397291 5.27 5.89 6.08     B7II/III 135 0
13 HD 50860 * 06 52 47.1415154160 -43 58 32.069560588 5.98 6.36 6.46     B8V 42 0
14 * 47 Vel a2* 08 35 52.0279727187 -50 58 10.731377779   5.651 5.782     ApSi 101 0
15 HD 73952 * 08 38 44.8069776775 -53 05 25.370461345   6.348 6.431     B8V 69 0
16 V* NY Vel a2* 08 40 19.1806001955 -40 15 49.982404044   5.19 5.20     Ap(SiCr) 66 1
17 * 14 Hya a2* 08 49 21.7272139537 -03 26 34.882135774 4.87 5.22 5.31     B8IIIpHgMn 143 0
18 * 19 Hya * 09 08 42.1804385740 -08 35 22.293002212 5.35 5.537 5.609     B9V 49 0
19 * tet Hya SB* 09 14 21.8663945301 +02 18 51.638194950   3.82   3.9   B9.5V+DA1.6 205 0
20 * m Car V* 09 39 20.9994838 -61 19 41.016686   4.432 4.498     B9IV/V 75 0
21 * del Ant * 10 29 35.3822401873 -30 36 25.422376542 5.34 5.52 5.56     B9/9.5V 54 0
22 V* V364 Car a2* 10 40 11.4478094717 -65 06 00.740462343 4.79 5.36 5.52     ApSi 137 0
23 * lam Cen * 11 35 46.8790838328 -63 01 11.396483522 2.96 3.10 3.14 3.10 3.11 B9III 124 0
24 * del Crv PM* 12 29 51.8551642 -16 30 55.552542 2.80 2.89 2.94 2.99 3.03 A0IV(n)kB9 189 0
25 * l Cen ** 12 39 52.5283944 -39 59 14.290592 4.16 4.56 4.64 4.66 4.75 B8II/III 106 0
26 HD 113902 * 13 07 38.2831874212 -53 27 35.138652274   5.629 5.698     B8/9V 61 0
27 * eta Mus C * 13 15 09.9714764252 -67 52 49.483739860   7.48 7.20     kB8hF0:SrSi 16 1
28 * eta Mus SB* 13 15 14.94123 -67 53 40.5276   4.687 4.780     B7III+B7III 100 1
29 * eta Mus B * 13 15 15.2184470169 -67 53 42.130269735           ~ 13 1
30 HD 118354 * 13 37 23.4793374107 -46 25 40.408656381   5.787 5.889     B8V 43 0
31 * 1 Boo ** 13 40 40.4692590104 +19 57 20.583939813   5.77 5.76   5.72 A1V 47 0
32 HD 126981 * 14 30 08.6290335739 -45 19 16.884562932 5.15 5.42 5.50     B8V 55 0
33 * 108 Vir * 14 45 30.2060174766 +00 43 02.178514704   5.656 5.665     B9.5V 147 0
34 V* HR Lup a2* 15 08 12.1245697358 -40 35 02.158712447 5.25 5.65 5.79     B8IVSi 157 1
35 HD 134837 * 15 13 07.6613057814 -36 05 29.114095971   5.996 6.079     B8V 43 1
36 HD 134946 * 15 13 17.4088443623 -24 00 29.925803310   6.43 6.47     B8III 27 1
37 * mu. Lup Be* 15 18 32.02296 -47 52 30.9957 3.82         B8Ve 95 0
38 * chi Lup SB* 15 50 57.5382881 -33 37 37.795321 3.77 3.909 3.946     B9III 293 0
39 HD 144334 ** 16 06 06.3880156603 -23 36 22.864006766 5.29 5.84 5.92     B8V 181 0
40 * 12 Sco ** 16 12 16.03911 -28 25 02.3122           B9V 70 0
41 * del Ara PM* 17 31 05.9127207 -60 41 01.852144 3.21 3.52 3.62     B8Vn 86 0
42 * 52 Oph a2* 17 35 18.4996429553 -22 02 37.768408347   6.490 6.481     ApSi 72 0
43 * eps Sgr ** 18 24 10.31840 -34 23 04.6193 1.69 1.82 1.85 1.85 1.86 B9IVp_lB? 201 0
44 * nu. Pav SB* 18 31 22.4250858 -62 16 41.885313 4.14 4.53 4.64     B7III 62 0
45 HD 176270 Y*O 19 01 04.3010690647 -37 03 41.687262827   6.37 6.40     B9V 53 0
46 * lam Aql PM* 19 06 14.9397099975 -04 52 57.231496924 3.07 3.34 3.43 3.46 3.55 B8.5V 213 0
47 HD 180555 ** 19 16 26.7908225214 +14 32 40.539409509   5.61 5.63     B9.5V 62 0
48 * alf Sgr PM* 19 23 53.1748283 -40 36 57.370456 3.54 3.841 3.943     B8V 91 0
49 * h02 Sgr PM* 19 36 42.4328855 -24 53 01.028795   4.528 4.598     B8/9V 60 0
50 * bet Scl PM* 23 32 58.2589788 -37 49 05.757000 3.92 4.28 4.37 4.37 4.44 B9.5IIIpHgMnSi 169 0
51 * i01 Aqr * 23 44 12.0785220231 -18 16 36.999934132   5.152 5.239     B9V 87 0

    Equat.    Gal    SGal    Ecl

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2021.07.29-17:34:09

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