A super-Earth orbiting the nearby M dwarf GJ 536

被引：19

作者：

Suarez Mascareno, A. ^{[1
,2
]}

Gonzalez Hernandez, J. I. ^{[1
,2
]}

Rebolo, R. ^{[1
,2
,3
]}

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

Bonfils, X. ^{[5
,6
]}

Bouchy, F.

Delfosse, X. ^{[5
,6
]}

Forveille, T. ^{[5
,6
]}

Lovis, C. ^{[4
]}

Mayor, M. ^{[4
]}

Murgas, F. ^{[5
,6
]}

Pepe, F. ^{[4
]}

Santos, N. C. ^{[7
,8
]}

Udry, S. ^{[4
]}

Wunsche, A. ^{[7
,8
]}

Velasco, S. ^{[1
,2
]}

机构：

[1] Inst Astrofis Canarias, Tenerife 38205, Spain

[2] Univ La Laguna, Dept Astrofis, Tenerife 38206, Spain

[3] Consejo Super Invest Cientif, Madrid 28006, Spain

[4] Univ Geneva, Observ Astron, CH-1290 Versoix, Switzerland

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

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

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

[8] Univ Porto, Dept Fis & Astron, Fac Ciencias, Rua Campo Alegre, P-4169007 Oporto, Portugal

来源：

ASTRONOMY & ASTROPHYSICS | 2017年 / 597卷

基金：

欧洲研究理事会;

关键词：

techniques: radial velocities; stars: rotation; planets and satellites: terrestrial planets; stars: individual: GJ 536; stars: activity; planets and satellites: general; EXTRA-SOLAR PLANETS; MAIN-SEQUENCE STARS; HARPS SEARCH; STELLAR ACTIVITY; TIME-SERIES; HABITABLE ZONES; MAGNETIC ACTIVITY; ROTATION PERIODS; NO PLANET; PROGRAM;

D O I：

10.1051/0004-6361/201629291

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of a super-Earth orbiting the star GJ 536 based on the analysis of the radial-velocity time series from the HARPS and HARPS-N spectrographs. GJ 536 b is a planet with a minimum mass M sin i of 5.36 +/- 0.69 M-circle plus; it has an orbital period of 8.7076 +/- 0.0025 d at a distance of 0.066610(13) AU, and an orbit that is consistent with circular. The host star is the moderately quiet M1 V star GJ 536, located at 10 pc from the Sun. We find the presence of a second signal at 43 d that we relate to stellar rotation after analysing the time series of Ca IIH&K and H-alpha spectroscopic indicators and photometric data from the ASAS archive. We find no evidence linking the short period signal to any activity proxy. We also tentatively derived a stellar magnetic cycle of less than 3 yr.

引用

页数：11

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