2005A&A...437.1121L


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET12:03:54

2005A&A...437.1121L - Astronomy and Astrophysics, volume 437, 1121-1126 (2005/7-3)

The HARPS search for southern extra-solar planets. III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117.

LOVIS C., MAYOR M., BOUCHY F., PEPE F., QUELOZ D., SANTOS N.C., UDRY S., BENZ W., BERTAUX J.-L., MORDASINI C. and SIVAN J.-P.

Abstract (from CDS):

We report on the detection of three Saturn-mass planets discovered with the HARPS instrument. HD 93083 shows radial-velocity (RV) variations best explained by the presence of a companion of 0.37MJup orbiting in 143.6 days. HD 101930 b has an orbital period of 70.5 days and a minimum mass of 0.30MJup. For HD 102117, we present the independent detection of a companion with m2 sini=0.14MJup and orbital period P=20.7days. This planet was recently detected by Tinney et al. (2005ApJ...623.1171T). Activity and bisector indicators exclude any significant RV perturbations of stellar origin, reinforcing the planetary interpretation of the RV variations. The radial-velocity residuals around the Keplerian fits are 2.0, 1.8 and 0.9m/s respectively, showing the unprecedented RV accuracy achieved with HARPS. A sample of stable stars observed with HARPS is also presented to illustrate the long-term precision of the instrument. All three stars are metal-rich, confirming the now well-established relation between planet occurrence and metallicity. The new planets are all in the Saturn-mass range, orbiting at moderate distance from their parent star, thereby occupying an area of the parameter space which seems difficult to populate according to planet formation theories. A systematic exploration of these regions will provide new constraints on formation scenarios in the near future.

Abstract Copyright:

Journal keyword(s): stars: individual: HD 93083 - stars: individual: HD 101930 - stars: individual: HD 102117 - stars: planetary systems - techniques: radial velocities - techniques: spectroscopic

Simbad objects: 19

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Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 55 PM* 00 05 17.6887259610 -67 49 57.325632218 10.503 9.569 8.485 7.838 7.279 K4.5V 72 0
2 * zet Tuc PM* 00 20 04.2599713 -64 52 29.254760 4.82 4.80 4.23 3.73 3.40 F9.5V 347 0
3 HD 6673 PM* 01 06 47.4297748079 -50 59 21.999727401   9.77 8.84     K2.5V 71 0
4 * e Eri PM* 03 19 55.6509352 -43 04 11.217495 5.20 4.98 4.27 3.65 3.25 G6V 401 1
5 HD 28471 PM* 04 25 09.1511840948 -64 04 48.254275681   8.56 7.91     G5V 67 0
6 HD 30278 PM* 04 43 13.6854574495 -54 35 36.338610336   8.36 7.60     G9V 57 0
7 HD 44594 ** 06 20 06.13530 -48 44 27.9344 7.46 7.26 6.60     G2Va 153 0
8 HD 82342 PM* 09 30 28.0876027969 -32 06 12.253221772 10.098 9.311 8.319 7.724 7.188 K3.5V 52 0
9 HD 93083 PM* 10 44 20.9151275118 -33 34 37.286245853   9.27 8.33     K2IV-V 90 1
10 HD 93083b Pl 10 44 20.9151275118 -33 34 37.286245853           ~ 21 1
11 HD 101930 PM* 11 43 30.1133689238 -58 00 24.776845450   9.12 8.21     K2V+ 88 1
12 HD 101930b Pl 11 43 30.1133689238 -58 00 24.776845450           ~ 19 1
13 HD 102117 PM* 11 44 50.4608441567 -58 42 13.356420097   8.20 7.45     G6V 97 1
14 HD 102117b Pl 11 44 50.4608441567 -58 42 13.356420097           ~ 24 1
15 HD 114853 PM* 13 13 52.2256855782 -45 11 08.881921063 7.681 7.583 6.940 6.559 6.226 G1.5V 92 0
16 * mu. Ara PM* 17 44 08.7036342277 -51 50 02.591049123   5.85 5.15     G3IV-V 473 2
17 HD 162396 PM* 17 52 52.5828939517 -41 59 47.487625525   6.74 6.20     F9VFe-0.7CH-0.4 107 0
18 HD 196761 PM* 20 40 11.7546336973 -23 46 25.924674471   7.09 6.37     G7.5IV-V 170 0
19 HD 215152 PM* 22 43 21.3028550007 -06 24 02.955702080   9.12 8.13 7.83 8.46 K3V 87 1

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2020.12.02-12:03:54

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