2012ApJ...753..169W

Query : 2012ApJ...753..169W

2012ApJ...753..169W - Astrophys. J., 753, 169 (2012/July-2)

The anglo-australian planet search. XXII. Two new multi-planet systems.

WITTENMYER R.A., HORNER J., TUOMI M., SALTER G.S., TINNEY C.G., BUTLER R.P., JONES H.R.A., O'TOOLE S.J., BAILEY J., CARTER B.D., JENKINS J.S., ZHANG Z., VOGT S.S. and RIVERA E.J.

Abstract (from CDS):

We report the detection of two new planets from the Anglo-Australian Planet Search. These planets orbit two stars each previously known to host one planet. The new planet orbiting HD 142 has a period of 6005±427 days, and a minimum mass of 5.3 MJup. HD 142c is thus a new Jupiter analog: a gas-giant planet with a long period and low eccentricity (e = 0.21±0.07). The second planet in the HD 159868 system has a period of 352.3±1.3 days and m sin i = 0.73±0.05 MJup. In both of these systems, including the additional planets in the fitting process significantly reduced the eccentricity of the original planet. These systems are thus examples of how multiple-planet systems can masquerade as moderately eccentric single-planet systems.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: individual (HD 142, HD 159868) - techniques: radial velocities

Simbad objects: 17

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Number of rows : 17
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 142 PM* 00 06 19.1753245111 -49 04 30.671249608   6.30 5.76     F7V 271 1
2 HD 142c Pl 00 06 19.1753245111 -49 04 30.671249608           ~ 21 1
3 HD 142b Pl 00 06 19.1753245111 -49 04 30.671249608           ~ 44 1
4 HD 4308 PM* 00 44 39.2672095011 -65 38 58.277728125 7.31 7.193 6.552     G6VFe-0.9 267 1
5 HD 20367b Pl 03 17 40.0468295160 +31 07 37.360398072           ~ 25 1
6 HD 38283b Pl 05 37 02.0168219808 -73 41 57.645205440           ~ 18 1
7 HD 74156d Pl? 08 42 25.1219511432 +04 34 41.145751740           ~ 19 1
8 HD 74156 PM* 08 42 25.1219511432 +04 34 41.145751740       7.2   G1V 247 2
9 * 47 UMa d Pl 10 59 27.9727514012 +40 25 48.920572724           ~ 33 1
10 HD 114613 PM* 13 12 03.1842958709 -37 48 10.879928463 5.86 5.55 4.85 4.28 3.92 G3V 231 0
11 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 742 1
12 * 23 Lib c Pl 15 13 28.6669233518 -25 18 33.653388418           ~ 35 1
13 HD 159868 PM* 17 38 59.5268792544 -43 08 43.842381468   7.96 7.24     G5V 159 1
14 HD 159868c Pl 17 38 59.5268792544 -43 08 43.842381468           ~ 17 1
15 HD 159868b Pl 17 38 59.5268792544 -43 08 43.842381468           ~ 30 1
16 * mu. Ara c Pl 17 44 08.7031414872 -51 50 02.591603160           ~ 94 2
17 HD 204961b Pl 21 33 33.9751191976 -49 00 32.399427028           ~ 73 1

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