SIMBAD references

2009A&A...507..487M - Astronomy and Astrophysics, volume 507, 487-494 (2009/11-3)

The HARPS search for southern extra-solar planets. XVIII. An earth-mass planet in the GJ 581 planetary system.

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

Abstract (from CDS):

The GJ 581 planetary system is already known to harbour three planets, including two super-Earth planets that straddle its habitable zone. We report the detection of an additional planet - GJ 581e - with a minimum mass of 1.9M. With a period of 3.15 days, it is the innermost planet of the system and has a ∼5% transit probability. We also correct our previous confusion about the orbital period of GJ 581d (the outermost planet) with a one-year alias, benefitting from an extended time span and many more measurements. The revised period is 66.8 days, and positions the semi-major axis inside the habitable zone of the low mass star. The dynamical stability of the 4-planet system imposes an upper bound on the orbital plane inclination. The planets cannot be more massive than approximately 1.6 times their minimum mass.

Abstract Copyright:

Journal keyword(s): planetary systems - stars: late-type - techniques: radial velocities - stars: individual: GJ 581

VizieR on-line data: <Available at CDS (J/A+A/507/487): table1.dat>

Simbad objects: 16

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2019.10.22-01:58:25

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