The SOPHIE search for northern extrasolar planets VII. A warm Neptune orbiting HD164595

被引：61

作者：

Courcol, B. ^{[1
]}

Bouchy, F. ^{[1
]}

Pepe, F. ^{[2
]}

Santerne, A. ^{[3
]}

Delfosse, X. ^{[4
,10
]}

Arnold, L. ^{[6
]}

Astudillo-Defru, N. ^{[4
,10
]}

Boisse, I. ^{[1
]}

Bonfils, X. ^{[4
,10
]}

Borgniet, S. ^{[4
]}

Bourrier, V. ^{[2
]}

Cabrera, N. ^{[4
,10
]}

Deleuil, M. ^{[1
]}

Demangeon, O. ^{[1
]}

Diaz, R. F. ^{[1
,2
]}

Ehrenreich, D. ^{[2
]}

Forveille, T. ^{[4
,10
]}

Hebrard, G. ^{[5
,6
]}

Lagrange, A. M. ^{[4
]}

Montagnier, G. ^{[5
,6
]}

Moutou, C. ^{[1
,8
]}

Rey, J. ^{[2
]}

Santos, N. C. ^{[3
,7
]}

Segransan, D. ^{[2
]}

Udry, S. ^{[2
]}

Wilson, P. A. ^{[5
,9
]}

机构：

[1] Aix Marseille Univ, Lab Astrophys Marseille, CNRS, UMR 7326, F-13388 Marseille 13, France

[2] Univ Geneva, Dept Astron, CH-1290 Versoix, Switzerland

[3] Univ Porto, CAUP, Inst Astrofis & Ciencias Espaco, P-4150762 Oporto, Portugal

[4] Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France

[5] Univ Paris 06, Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France

[6] Aix Marseille Univ, OHP, Inst Pytheas, CNRS,UMS 3470, F-04870 St Michel, France

[7] Univ Porto, Dept Fis & Astron, Fac Ciencias, P-4169007 Oporto, Portugal

[8] CFHT, Kamuela, HI 96743 USA

[9] Univ Paris 06, Sorbonne Univ, Inst Astrophys Paris, UMR 7095, F-75014 Paris, France

[10] IPAG, CNRS, F-38000 Grenoble, France

来源：

ASTRONOMY & ASTROPHYSICS | 2015年 / 581卷

基金：

瑞士国家科学基金会;

关键词：

planetary systems; techniques: radial velocities; stars: individual: HD164595; stars: individual: HD190360; stars: individual: HD185144; RADIAL-VELOCITY MEASUREMENTS; SOLAR PLANETS; HARPS SEARCH; SHORT-PERIOD; MASS; KEPLER; STARS; COMPANIONS; EXOPLANETS; MISSION;

D O I：

10.1051/0004-6361/201526329

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

High-precision radial velocity surveys explore the population of low-mass exoplanets orbiting bright stars. This allows accurately deriving their orbital parameters such as their occurrence rate and the statistical distribution of their properties. Based on this, models of planetary formation and evolution can be constrained. The SOPHIE spectrograph has been continuously improved in past years, and thanks to an appropriate correction of systematic instrumental drift, it is now reaching 2 ms(-1) precision in radial velocity measurements on all timescales. As part of a dedicated radial velocity survey devoted to search for low-mass planets around a sample of 190 bright solar-type stars in the northern hemisphere, we report the detection of a warm Neptune with a minimum mass of 16.1 +/- 2.7 M-circle dot orbiting the solar analog HD164595 in 40 +/- 0.24 days. We also revised the parameters of the multiplanetary system around HD190360. We discuss this new detection in the context of the upcoming space mission CHEOPS, which is devoted to a transit search of bright stars harboring known exoplanets.

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页数：10

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