2009A&A...507..487M


Query : 2009A&A...507..487M

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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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 HD 7924 * 01 21 59.1137270904 +76 42 37.038255120   8.018 7.167     K0.5V 132 1
2 HD 285968 PM* 04 42 55.7750207949 +18 57 29.395947044 12.668 11.49 9.951 8.931 7.702 M2.5V 304 2
3 HD 40307 PM* 05 54 04.2405000288 -60 01 24.493007640 8.814 8.097 7.147 6.597 6.119 K2.5V 232 1
4 HD 69830 PM* 08 18 23.9469682407 -12 37 55.817187530   6.74 5.95     G8:V 501 1
5 L 675-81 PM* 08 40 59.2057867166 -23 27 22.592748045   13.2 11.975 11.637 9.37 M3.5V 128 1
6 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 587 1
7 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 598 2
8 BD-07 4003d Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 147 1
9 BD-07 4003b Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 81 1
10 BD-07 4003c Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 105 1
11 BD-07 4003e Pl 15 19 26.8271336166 -07 43 20.190958776           ~ 73 1
12 CD-46 11540 LM* 17 28 39.9455781571 -46 53 42.688095874 12.177 10.973 9.407 8.337 7.006 M3V 235 1
13 HD 181433 PM* 19 25 09.5666936172 -66 28 07.676956827   9.42 8.38     K3III-IV 115 1
14 HD 204961 PM* 21 33 33.9751191976 -49 00 32.399427028 11.359 10.176 8.672 7.665 6.479 M2/3V 253 1
15 BD-05 5715 PM* 22 09 40.3443137051 -04 38 26.650757960 13.006 11.868 10.366 9.279 7.877 M3.5V 257 1
16 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 949 1

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2022.12.01-22:13:27

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