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

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

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

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 - 2024 		#notes
1 * rho01 Cnc EB* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1121 1
2 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 645 1
3 HD 330075 PM* 15 49 37.6937569728 -49 57 48.678348924   10.23 9.33     G5 99 1
4 * mu. Ara PM* 17 44 08.7031414872 -51 50 02.591603160   5.85 5.15     G3IV-V 531 2
5 * mu. Ara b Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 92 2
6 * mu. Ara d Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 67 2
7 * mu. Ara c Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 89 2

To bookmark this query, right click on this link: simbad:objects in 2004A&A...426L..19S and select 'bookmark this link' or equivalent in the popup menu