2005A&A...443..337G


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET01:11:53

2005A&A...443..337G - Astronomy and Astrophysics, volume 443, 337-345 (2005/11-3)

Extrasolar planets and brown dwarfs around A-F type stars. I. Performances of radial velocity measurements, first analyses of variations.

GALLAND F., LAGRANGE A.-M., UDRY S., CHELLI A., PEPE F., QUELOZ D., BEUZIT J.-L. and MAYOR M.

Abstract (from CDS):

We present the performances of a radial velocity measurement method that we developed for A-F type stars. These perfomances are evaluated through an extensive set of simulations, together with actual radial velocity observations of such stars using the ELODIE and HARPS spectrographs. We report the case of stars constant in radial velocity, the example of a binary detection on HD48097 (an A2V star, with vsin i equal to 90km/s) and a confirmation of the existence of a 3.9MJup planet orbiting around HD120136 (Tau Boo). The instability strip problem is also discussed. We show that with this method, it is in principle possible to detect planets and brown dwarfs around A-F type stars, thus allowing further study of the impact of stellar masses on planetary system formation over a wider range of stellar masses than is currently done.

Abstract Copyright:

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

Simbad objects: 10

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Number of rows : 10

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 * sig And ** 00 18 19.6574549 +36 47 06.810654 4.64 4.57 4.52 4.44 4.44 A2V 138 0
2 * tet Cas PM* 01 11 06.1622468 +55 08 59.647259 4.630 4.510 4.330 4.16 4.09 A7V 188 0
3 * 26 Gem PM* 06 42 24.3272189 +17 38 43.111835   5.27 5.21     A2V 79 0
4 * rho Gem PM* 07 29 06.71887 +31 47 04.3773 4.48 4.50 4.18 3.86 3.67 F1V 314 0
5 * chi Cnc PM* 08 20 03.8606964664 +27 13 03.746404123   5.61   4.8   F6V 285 0
6 * bet Leo dS* 11 49 03.57834 +14 34 19.4090 2.30 2.22 2.13 2.08 2.06 A3Va 548 0
7 HD 109573 PM* 12 36 01.0317721349 -39 52 10.222698506   5.786 5.774 7.25 5.81 A0V 564 1
8 * tau Boo Ro* 13 47 15.74340 +17 27 24.8552 5.02 4.98 4.49 4.09 3.85 F7IV-V 899 1
9 * c Boo PM* 15 07 18.0658711040 +24 52 09.095241798 5.34 5.36 4.93 4.53 4.32 F5V 341 0
10 HD 141569 Y*O 15 49 57.7484743862 -03 55 16.344023102 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 480 0

    Equat.    Gal    SGal    Ecl

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2021.03.03-01:11:53

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