SIMBAD references

2007A&A...469L..43U - Astronomy and Astrophysics, volume 469, L43-47 (2007/7-3)

The HARPS search for southern extra-solar planets. XI. Super-Earths (5 and 8M⊕) in a 3-planet system.

UDRY S., BONFILS X., DELFOSSE X., FORVEILLE T., MAYOR M., PERRIER C., BOUCHY F., LOVIS C., PEPE F., QUELOZ D. and BERTAUX J.-L.

Abstract (from CDS):

This Letter reports on the detection of two super-Earth planets in the Gl581 system, which is already known to harbour a hot Neptune. One of the planets has a mass of 5M⊕ and resides at the ``warm'' edge of the habitable zone of the star. It is thus the known exoplanet that most resembles our own Earth. The other planet has a 7.7M⊕ mass and orbits at 0.25AU from the star, close to the ``cold'' edge of the habitable zone. These two new light planets around an M3 dwarf further confirm the formerly tentative statistical trend toward (i) many more very low-mass planets being found around M dwarfs than around solar-type stars and (ii) low-mass planets outnumbering Jovian planets around M dwarfs.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: Gl581 - stars: planetary systems - techniques: radial velocities - methods: observational

VizieR on-line data: <Available at CDS (J/A+A/469/L43): gl581.dat>

Simbad objects: 8

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