2005A&A...440.1051M


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.07CET04:14:05

2005A&A...440.1051M - Astronomy and Astrophysics, volume 440, 1051-1060 (2005/9-4)

Four new wide binaries among exoplanet host stars.

MUGRAUER M., NEUHAEUSER R., SEIFAHRT A., MAZEH T. and GUENTHER E.

Abstract (from CDS):

In our ongoing survey for wide (sub)stellar companions of exoplanet host stars we have found 4 new co-moving stellar companions of the stars HD 114729, HD 16141, HD 196050 and HD 213240 with projected separations from 223 up to 3898AU. The companionship of HD 114729B, HD 196050B and HD 213240C is confirmed by photometry and spectroscopy, all being early M dwarfs. The masses of the detected companions are derived from their infrared JHK magnitudes and range between 0.146 and 0.363M. Our first and second epoch observations can rule out additional stellar companions around the primaries from ∼200 up to ∼2400AU (S/N=10). In our survey we have found so far 6 new binaries among the exoplanet host stars. According to these new detections, the reported differences between single-star and binary-star planets with orbital periods short than 40 days remain significant in both the mass-period and eccentricity-period distribution. In contrast, all exoplanets with orbital periods longer than 100 days tend to display similar distributions.

Abstract Copyright:

Journal keyword(s): stars: low-mass, brown dwarfs - planetary systems - stars: individual: HD 16141 - stars: individual: HD 114729 - stars: individual: HD 196050 - stars: individual: HD 213240

Simbad objects: 22

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Number of rows : 22

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 CD-68 47 ** 01 10 22.8808981176 -67 26 41.948658967 12.515 11.368 9.824 8.73 7.353 M2.5V 80 0
2 HD 13445 PM* 02 10 25.9190575041 -50 49 25.467227759   6.945 6.117     K1.5V 421 1
3 * 79 Cet B PM* 02 35 19.8724274057 -03 33 44.338723664           F 4 0
4 * 79 Cet b Pl 02 35 19.9292617962 -03 33 38.170691640           ~ 47 1
5 * 79 Cet PM* 02 35 19.9292617962 -03 33 38.170691640   7.49 6.78     G2V 270 1
6 * 94 Cet PM* 03 12 46.4369076602 -01 11 45.949836281   5.631 5.070     F8.5V 412 1
7 HD 75289b Pl 08 47 40.3895634256 -41 44 12.456269569           ~ 81 1
8 HD 75289 PM* 08 47 40.3895634256 -41 44 12.456269569 7.04 6.94 6.36     F9VFe+0.3 253 1
9 HD 89744 PM* 10 22 10.5623067078 +41 13 46.308754730       5.4   F7V 307 1
10 HD 89744b Pl 10 22 10.5623067078 +41 13 46.308754730           ~ 48 1
11 2MASS J10221489+4114266 BD* 10 22 14.8730865157 +41 14 26.509644568           L0.5 39 0
12 HD 114762 SB* 13 12 19.7467346230 +17 31 01.611425890 7.78         F9VgF8mF4+M6?V 518 1
13 HD 114729b Pl 13 12 44.2594905817 -31 52 24.057468040           ~ 28 1
14 HD 114729 PM* 13 12 44.2594905817 -31 52 24.057468040   7.31 6.69     G0V 166 1
15 * tau Boo Ro* 13 47 15.74340 +17 27 24.8552 5.02 4.98 4.49 4.09 3.85 F7IV-V 901 1
16 CD-24 12677 PM* 16 23 07.6434241274 -24 42 35.226687119 12.863 11.677 10.216 9.284 8.314 M2V 66 0
17 * 16 Cyg A ** 19 41 48.9539315338 +50 31 30.218780803 6.79 6.59 5.95 5.50 5.17 G1.5Vb 690 1
18 HD 196050 PM* 20 37 51.7098385539 -60 38 04.147300896   8.16 7.49   9.01 G3V 126 1
19 UCAC2 10771617 PM* 22 31 00.3480813716 -49 25 37.835368638     12.0 12.44   ~ 5 0
20 HD 213240b Pl 22 31 00.3665162994 -49 25 59.767492660           ~ 34 1
21 HD 213240 PM* 22 31 00.3665162994 -49 25 59.767492660   7.41 6.80     G0/1V 156 1
22 HD 219542Bb Pl? 23 16 35.4241272649 -01 35 06.954713275           ~ 3 1

    Equat.    Gal    SGal    Ecl

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2021.03.07-04:14:05

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