2016A&A...585A..46B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.06CEST23:46:26

2016A&A...585A..46B - Astronomy and Astrophysics, volume 585A, 46-46 (2016/1-1)

The SOPHIE search for northern extrasolar planets. VIII. Follow-up of ELODIE candidates: long-period brown-dwarf companions.

BOUCHY F., SEGRANSAN D., DIAZ R.F., FORVEILLE T., BOISSE I., ARNOLD L., ASTUDILLO-DEFRU N., BEUZIT J.-L., BONFILS X., BORGNIET S., BOURRIER V., COURCOL B., DELFOSSE X., DEMANGEON O., DELORME P., EHRENREICH D., HEBRARD G., LAGRANGE A.-M., MAYOR M., MONTAGNIER G., MOUTOU C., NAEF D., PEPE F., PERRIER C., QUELOZ D., REY J., SAHLMANN J., SANTERNE A., SANTOS N.C., SIVAN J.-P., UDRY S. and WILSON P.A.

Abstract (from CDS):

Long-period brown dwarf companions detected in radial velocity surveys are important targets for direct imaging and astrometry to calibrate the mass-luminosity relation of substellar objects. Through a 20-yr radial velocity monitoring of solar-type stars that began with ELODIE and was extended with SOPHIE spectrographs, giant exoplanets and brown dwarfs with orbital periods longer than ten years are discovered. We report the detection of five new potential brown dwarfs with minimum masses between 32 and 83MJup orbiting solar-type stars with periods longer than ten years. An upper mass limit of these companions is provided using astrometric Hipparcos data, high-angular resolution imaging made with PUEO, and a deep analysis of the cross-correlation function of the main stellar spectra to search for blend effects or faint secondary components. These objects double the number of known brown dwarf companions with orbital periods longer than ten years and reinforce the conclusion that the occurrence of such objects increases with orbital separation. With a projected separation larger than 100 mas, all these brown dwarf candidates are appropriate targets for high-contrast and high angular resolution imaging.

Abstract Copyright:

Journal keyword(s): techniques: radial velocities - binaries: spectroscopic - stars: low-mass - brown dwarfs - stars: general

VizieR on-line data: <Available at CDS (J/A+A/585/A46): stars.dat table5.dat table6.dat table7.dat table8.dat table9.dat>

Simbad objects: 26

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Number of rows : 26

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 4747 SB* 00 49 26.7612113944 -23 12 44.865754071 8.244 7.927 7.155 6.732 6.344 G8/K0V 127 0
2 CD-23 395b Pl 01 06 02.0494092766 -22 27 11.353493137           ~ 11 1
3 CD-23 395 PM* 01 06 02.0494092766 -22 27 11.353493137   11.29 10.21     ~ 39 1
4 HD 10844b Pl? 01 46 44.8869445540 +25 55 05.662440718           ~ 1 0
5 HD 10844 PM* 01 46 44.8869445540 +25 55 05.662440718   8.72   7.7   F8 25 0
6 HD 14348 PM* 02 19 52.9252134421 +31 20 14.917696454       6.8   F5 25 0
7 HD 16702 * 02 42 58.6582878561 +58 11 52.089847902   8.89 8.29     G0V 27 1
8 HD 18757 PM* 03 04 09.6344824917 +61 42 20.959343616   7.25   6.2   G1.5V 118 0
9 HD 18757b Pl? 03 04 09.6376 +61 42 20.989           ~ 1 0
10 HD 24040b Pl 03 50 22.9678396849 +17 28 34.925350780           ~ 11 1
11 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2654 0
12 HD 29461b Pl? 04 38 57.3279273979 +14 06 20.016018199           ~ 1 0
13 HD 29461 PM* 04 38 57.3279273979 +14 06 20.016018199   8.593 7.945 7.585 7.253 G5 108 0
14 HD 72945 SB* 08 35 50.9773580356 +06 37 12.780931161 6.55     5.6   F8V 110 0
15 HD 72946 PM* 08 35 51.2665915520 +06 37 21.970611710 8.23     6.7   G8-V 102 0
16 HD 74014 PM* 08 41 18.5612181529 -04 48 32.187963798   8.33 7.57     K0III 51 0
17 HD 89307b Pl 10 18 21.2874119786 +12 37 15.991950715           ~ 27 1
18 HD 150706 PM* 16 31 17.5833539505 +79 47 23.199471923   7.622 7.016     G0 178 1
19 HD 154345b Pl 17 02 36.4039047898 +47 04 54.762678953           ~ 32 1
20 HD 167665 PM* 18 17 23.7584695845 -28 17 20.201725932   6.94 6.40     F9VFe-0.8CH-0.4 87 1
21 HD 175225 PM* 18 51 34.9220457822 +52 58 30.251981548   6.35   5.0   G9IVa 105 1
22 HD 209262b Pl? 22 01 54.1217950769 +04 46 13.623839900           ~ 2 0
23 HD 209262 PM* 22 01 54.1217950769 +04 46 13.623839900   8.68 8.02     G6V 22 0
24 AG+04 2980 PM* 22 01 56.3915689898 +04 47 31.758848291   10.42 9.80     G0 1 0
25 HD 211847 PM* 22 20 55.7381994126 -41 25 48.395068615   9.27 8.62     G5V 25 0
26 HD 222155 PM* 23 38 00.3072118024 +48 59 47.486499625   7.76   6.7   G0 55 1

    Equat.    Gal    SGal    Ecl

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2020.07.06-23:46:26

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