2004A&A...426L..19S


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET04:30:51

2004A&A...426L..19S - Astronomy and Astrophysics, volume 426, L19-23 (2004/10-4)

The HARPS survey for southern extra-solar planets. II. A 14 Earth-masses exoplanet around µ Arae.

SANTOS N.C., BOUCHY F., MAYOR M., PEPE F., QUELOZ D., UDRY S., LOVIS C., BAZOT M., BENZ W., BERTAUX J.-L., LO CURTO G., DELFOSSE X., MORDASINI C., NAEF D., SIVAN J.-P. and VAUCLAIR S.

Abstract (from CDS):

In this letter we present the discovery of a very light planetary companion to the star µ Ara (HD160691). The planet orbits its host once every 9.5 days, and induces a sinusoidal radial velocity signal with a semi-amplitude of 4.1m/s, the smallest Doppler amplitude detected so far. These values imply a mass of m2sini=14M (Earth-masses). This detection represents the discovery of a planet with a mass slightly smaller than that of Uranus, the smallest ``ice giant'' in our Solar System. Whether this planet can be considered an ice giant or a super-earth planet is discussed in the context of the core-accretion and migration models.

Abstract Copyright:

Journal keyword(s): stars: individual: HD 160691 - planetary systems - techniques: radial velocities

CDS comments: The new exoplanet is HD 160691D

Simbad objects: 7

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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 - 2021
#notes
1 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 993 1
2 Ross 905 PM* 11 42 11.0933874353 +26 42 23.658083337   12.06 10.613 10.272 8.24 M3V 518 1
3 HD 330075 PM* 15 49 37.6938243823 -49 57 48.677088732   10.23 9.33     G5 83 1
4 * mu. Ara b Pl 17 44 08.7036342277 -51 50 02.591049123           ~ 78 2
5 * mu. Ara d Pl 17 44 08.7036342277 -51 50 02.591049123           ~ 57 2
6 * mu. Ara c Pl 17 44 08.7036342277 -51 50 02.591049123           ~ 77 2
7 * mu. Ara PM* 17 44 08.7036342277 -51 50 02.591049123   5.85 5.15     G3IV-V 479 2

    Equat.    Gal    SGal    Ecl

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2021.03.03-04:30:51

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