2007A&A...469L..43U

Query : 2007A&A...469L..43U

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

Full paper

View the references in ADS

Number of rows : 8

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	BD-07 4003c	Pl	15 19 26.8269387505	-07 43 20.189497466						~	115	1
2	BD-07 4003b	Pl	15 19 26.8269387505	-07 43 20.189497466						~	88	1
3	BD-07 4003	BY*	15 19 26.8269387505	-07 43 20.189497466	13.403	11.76	10.560	9.461	8.911	M3V	641	2
4	BD-07 4003d	Pl	15 19 26.8269387505	-07 43 20.189497466						~	152	1
5	CD-46 11540b	Pl	17 28 39.9455781571	-46 53 42.688095874						~	53	1
6	CD-46 11540	LM*	17 28 39.9455781571	-46 53 42.688095874	12.177	10.973	9.407	8.337	7.006	M3V	254	1
7	NAME EWS 2005-BLG-390b	Pl	17 54 19.2	-30 22 38						~	78	1
8	BD-15 6290	BY*	22 53 16.7325836486	-14 15 49.304052185	12.928	11.749	10.192	9.013	7.462	M3.5V	1013	1

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