2017AJ....154..274W


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST16:05:56

2017AJ....154..274W - Astron. J., 154, 274-274 (2017/December-4)

The Pan-Pacific Planet Search. VII. The most eccentric planet orbiting a giant star.

WITTENMYER R.A., JONES M.I., HORNER J., KANE S.R., MARSHALL J.P., MUSTILL A.J., JENKINS J.S., PENA ROJAS P.A., ZHAO J., VILLAVER E., BUTLER R.P. and CLARK J.

Abstract (from CDS):

Radial velocity observations from three instruments reveal the presence of a 4 MJup planet candidate orbiting the K giant HD 76920. HD 76920b has an orbital eccentricity of 0.856 ± 0.009, making it the most eccentric planet known to orbit an evolved star. There is no indication that HD 76920 has an unseen binary companion, suggesting a scattering event rather than Kozai oscillations as a probable culprit for the observed eccentricity. The candidate planet currently approaches to about four stellar radii from its host star, and is predicted to be engulfed on a ∼100 Myr timescale due to the combined effects of stellar evolution and tidal interactions.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems - stars: evolution - stars: individual: HD 76920 - techniques: radial velocities - techniques: radial velocities

Simbad objects: 15

goto Full paper

goto View the reference in ADS

Number of rows : 15

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 TYC 3667-1280-1 RG* 00 51 32.9670091655 +58 25 34.244618325   10.86 9.86     ~ 10 0
2 HD 20782b Pl 03 20 03.5777 -28 51 14.660           ~ 48 1
3 HD 29399 PM* 04 33 33.9494471342 -62 49 25.237737139   6.822 5.780     K1III 25 0
4 HD 37605b Pl 05 40 01.7280924476 +06 03 38.074320708           ~ 33 1
5 HD 45350b Pl 06 28 45.7111247856 +38 57 46.662846762           ~ 26 1
6 * pi.02 UMa b Pl 08 40 12.8204103814 +64 19 40.573003186           ~ 13 1
7 HD 76920b Pl? 08 55 16.8171056217 -67 15 55.699683612           ~ 3 0
8 HD 76920 * 08 55 16.8171056217 -67 15 55.699683612   8.93 7.82     K1III 9 0
9 HD 80606b Pl 09 22 37.5769478105 +50 36 13.434928660           ~ 265 1
10 HD 86950 * 10 01 37.6088922473 -17 19 58.886923596   8.55 7.46     K1III 10 0
11 * iot Dra V* 15 24 55.7746265 +58 57 57.834445 5.68 4.45 3.29 2.51 1.91 K2III 366 1
12 * iot Dra b Pl 15 24 55.7746648829 +58 57 57.818217848           ~ 37 1
13 Kepler-91 RG* 19 02 41.4979092591 +44 07 00.239792240           K1IV 50 1
14 * 51 Peg b Pl 22 57 27.9804167474 +20 46 07.782240714           ~ 483 1
15 * 51 Peg ** 22 57 27.9804167474 +20 46 07.782240714 6.39 6.16 5.46 4.97 4.61 G2IV 1058 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2017AJ....154..274W and select 'bookmark this link' or equivalent in the popup menu


2019.10.17-16:05:56

© Université de Strasbourg/CNRS

    • Contact