2011A&A...526A.111M

Query : 2011A&A...526A.111M

2011A&A...526A.111M - Astronomy and Astrophysics, volume 526A, 111-111 (2011/2-1)

The HARPS search for southern extra-solar planets. XXIV. Companions to HD 85390, HD 90156, and HD 103197: a Neptune analog and two intermediate-mass planets.

MORDASINI C., MAYOR M., UDRY S., LOVIS C., SEGRANSAN D., BENZ W., BERTAUX J.-L., BOUCHY F., LO CURTO G., MOUTOU C., NAEF D., PEPE F., QUELOZ D. and SANTOS N.C.

Abstract (from CDS):

We report the detection of three new extrasolar planets orbiting the solar type stars HD85390, HD90156 and HD103197 with the HARPS spectrograph mounted on the ESO 3.6-m telescope at La Silla observatory. HD85390 has a planetary companion with a projected intermediate mass (42.0M⊕) on a 788-day orbit (a=1.52AU) with an eccentricity of 0.41, for which there is no analog in the solar system. A drift in the data indicates the presence of another companion on a long-period orbit, which is however not covered by our measurements. HD90156 is orbited by a warm Neptune analog with a minimum mass of 17.98M⊕ (1.05Mneptune), a period of 49.8-days (a=0.25AU), and an eccentricity of 0.31. HD103197 has an intermediate-mass planet on a circular orbit (P=47.8d, Msini=31.2M⊕). We discuss the formation of planets of intermediate mass (∼30-100M⊕), which should be rare inside a few AU according to core accretion formation models.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - techniques: radial velocities - stars: individual: HD 85390 - stars: individual: HD 90156 - stars: individual: HD 103197 - planetary systems: formation

VizieR on-line data: <Available at CDS (J/A+A/526/A111): table1.dat table2.dat table3.dat table4.dat table5.dat>

Simbad objects: 12

goto Full paper

goto View the references in ADS

Number of rows : 12
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 HD 40307 PM* 05 54 04.2405000288 -60 01 24.493007640 8.814 8.097 7.147 6.597 6.119 K2.5V 263 1
2 HD 47186 PM* 06 36 08.7879310512 -27 37 20.268367464   8.36 7.63     G6V 144 1
3 HD 69830 PM* 08 18 23.9469682407 -12 37 55.817187530   6.74 5.95     G8:V 526 1
4 HD 85390 PM* 09 50 02.4966438384 -49 47 24.959191848   9.40 8.55     K1.5V 83 1
5 HD 85390b Pl 09 50 02.4966438384 -49 47 24.959191848           ~ 12 1
6 HD 90156b Pl 10 23 55.2740234040 -29 38 43.909986984           ~ 18 1
7 HD 90156 PM* 10 23 55.2740234040 -29 38 43.909986984 7.758 7.603 6.920 6.534 6.189 G5V 139 1
8 HD 103197 PM* 11 52 52.9781892600 -50 17 34.161630936   10.31 9.39     K1V(p) 62 1
9 HD 103197b Pl 11 52 52.9781892600 -50 17 34.161630936           ~ 14 1
10 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
11 * mu. Ara b Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 92 2
12 * 51 Peg b Pl 22 57 27.9804852576 +20 46 07.797040104           ~ 666 1

To bookmark this query, right click on this link: simbad:objects in 2011A&A...526A.111M and select 'bookmark this link' or equivalent in the popup menu