2004A&A...425..249M


Query : 2004A&A...425..249M

2004A&A...425..249M - Astronomy and Astrophysics, volume 425, 249-253 (2004/10-1)

A low-mass stellar companion of the planet host star HD 75289.

MUGRAUER M., NEUHAEUSER R., MAZEH T., ALVES J. and GUENTHER E.

Abstract (from CDS):

We report on the detection of a new low-mass stellar companion of HD 75289, a G0V star that harbors one known radial-velocity planet (Udry et al., 2000A&A...356..590U). Comparing an image from 2MASS with an image we obtained with SofI at the ESO 3.58m NTT three years later, we detected a co-moving companion located 21.465±0.023arcsec (621±10AU at 29pc) east of HD 75289. A second SofI image taken 10 months later confirmed the common proper motion of HD 75289B with its host star. The infrared spectrum and colors of the companion are consistent with an M 2 to M 5 main-sequence star at the distance of HD 75289. No further (sub)stellar companion down to H=19 mag could be detected. With the SofI detection limit we can rule out additional stellar companions beyond 140AU and substellar companions with masses m≥0.050M from 400AU up to 2000AU.

Abstract Copyright:

Journal keyword(s): stars: low-mass, brown dwarfs - stars: planetary systems

Simbad objects: 7

goto Full paper

goto View the references in ADS

Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 * iot Hor PM* 02 42 33.4666679022 -50 48 01.055138166   5.97 5.40     F8V 365 1
2 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 1798 1
3 HD 75289 PM* 08 47 40.3893739728 -41 44 12.455319264 7.04 6.94 6.36     F9VFe+0.3 262 1
4 HD 75289b Pl 08 47 40.3895634256 -41 44 12.456269569           ~ 83 1
5 UCAC3 97-62778 PM* 08 47 42.2617323456 -41 44 07.587077316       15.95 13.50 M2/5V 8 0
6 HD 89744 PM* 10 22 10.5618854376 +41 13 46.309698444       5.4   F7V 315 1
7 2MASS J10221489+4114266 BD* 10 22 14.8720836024 +41 14 26.514370356           L0.5 39 0

To bookmark this query, right click on this link: simbad:objects in 2004A&A...425..249M and select 'bookmark this link' or equivalent in the popup menu


2022.05.21-14:13:43

© Université de Strasbourg/CNRS

    • Contact