The CARMENES search for exoplanets around M dwarfs. HD147379 b : A nearby Neptune in the temperate zone of an early-M dwarf
The CARMENES search for exoplanets around M dwarfs. HD147379 b : A nearby Neptune in the temperate zone of an early-M dwarf
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DOI：
10.1051/0004-6361/201732165
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发表时间：
2017-12
影响因子：
6.5
通讯作者：
A. Reiners;I. Ribas;M. Zechmeister;J. Caballero;T. Trifonov;S. Dreizler;J. Morales;L. Tal-Or;M. Lafarga;A. Quirrenbach;P. Amado;A. Kaminski;S. Jeffers;J. Aceituno;V. Béjar;J. Guàrdia;E. Guenther;H. Hagen;D. Montes;V. Passegger;W. Seifert;A. Schweitzer;M. Cortés-Contreras;M. Cortés-Contreras;M. Abril;F. J. Alonso-Floriano;F. J. Alonso-Floriano;M. A. Eiff;R. Antona;G. Anglada-Escudé;H. Anwand-Heerwart;B. Arroyo-Torres;M. Azzaro;D. Baroch;D. Barrado;F. Bauer;S. Becerril;D. Benítez;Z. Berdiñas;G. Bergond;M. Blümcke;M. Brinkmöller;C. D. Burgo;J. Cano;M. Vázquez;M. Vázquez;E. Casal;C. Cifuentes;A. Claret;J. Colomé;S. Czesla;E. Díez-Alonso;C. Feiz;M. Fernández;I. Ferro;B. Fuhrmeister;D. Galad'i-Enr'iquez;A. Garcia-Piquer;M. Vargas;L. Gesa;V. Galera;J. Hern'andez;R. Gonz'alez-Peinado;U. Grözinger;S. Grohnert;A. Guijarro;E. D. Guindos;J. Gutiérrez-Soto;A. Hatzes;P. Hauschildt;R. Hedrosa;J. Helmling;T. Henning;I. Hermelo;R. Arabí;L. Castano;F. Hernando;E. Herrero;A. Huber;P. Huke;E. Johnson;E. Juan;M. Kim;R. Klein;J. Klüter;A. Klutsch;M. Kürster;F. Labarga;A. Lamert;M. Lamp'on;L. Lara;W. Laun;U. Lemke;R. Lenzen;R. Launhardt;M. L. D. Fresno;M. J. L'opez-Gonz'alez;M. López‐Puertas;J. F. Salas;J. Lopez-Santiago;R. Luque;H. M. Madinabeitia;U. Mall;L. Mancini;L. Mancini;H. Mandel;E. Marfil;J. Molina;D. Fernández;E. L. Martín;S. Martín-Ruiz;C. Marvin;Richard J. Mathar;E. Mirabet;M. Moreno-Raya;A. Moya;R. Mundt;E. Nagel;V. Naranjo;L. Nortmann;G. Nowak;A. Ofir;R. Oreiro;E. Pallé;J. Panduro;J. Pascual;A. Pavlov;S. Pedraz;A. Pérez-Calpena;D. P. Medialdea;M. Perger;M. Perryman;M. Pluto;O. Rabaza;O. Rabaza;A. Ramón;R. Rebolo;P. Redondo;S. Reffert;S. Reinhart;P. Rhode;H. Rix;F. Rodler;F. Rodler;E. Rodr'iguez;C. Rodríguez-López;A. R. Trinidad;R. Rohloff;A. Rosich;S. Sadegi;E. Sánchez-Blanco;M. Carrasco;A. S'anchez-L'opez;J. Sanz-Forcada;P. Sarkis;L. Sarmiento;S. Schafer;J. H. M. M. Schmitt-J.-H.-M.-M.-Schmitt-2244209165;J. Schiller;P. Schöfer;E. Solano;O. Stahl;J. Strachan;J. Stürmer;J. Suárez;J. Suárez;H. Tabernero;H. Tabernero;M. Tala;S. Tulloch;R. Ulbrich;G. Veredas;J. Linares;F. Vilardell;K. Wagner;J. Winkler;V. Wolthoff;W. Xu;F. Yan;M. Z. Osorio
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文献类型：
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作者：
A. Reiners;I. Ribas;M. Zechmeister;J. Caballero;T. Trifonov;S. Dreizler;J. Morales;L. Tal-Or;M. Lafarga;A. Quirrenbach;P. Amado;A. Kaminski;S. Jeffers;J. Aceituno;V. Béjar;J. Guàrdia;E. Guenther;H. Hagen;D. Montes;V. Passegger;W. Seifert;A. Schweitzer;M. Cortés-Contreras;M. Cortés-Contreras;M. Abril;F. J. Alonso-Floriano;F. J. Alonso-Floriano;M. A. Eiff;R. Antona;G. Anglada-Escudé;H. Anwand-Heerwart;B. Arroyo-Torres;M. Azzaro;D. Baroch;D. Barrado;F. Bauer;S. Becerril;D. Benítez;Z. Berdiñas;G. Bergond;M. Blümcke;M. Brinkmöller;C. D. Burgo;J. Cano;M. Vázquez;M. Vázquez;E. Casal;C. Cifuentes;A. Claret;J. Colomé;S. Czesla;E. Díez-Alonso;C. Feiz;M. Fernández;I. Ferro;B. Fuhrmeister;D. Galad'i-Enr'iquez;A. Garcia-Piquer;M. Vargas;L. Gesa;V. Galera;J. Hern'andez;R. Gonz'alez-Peinado;U. Grözinger;S. Grohnert;A. Guijarro;E. D. Guindos;J. Gutiérrez-Soto;A. Hatzes;P. Hauschildt;R. Hedrosa;J. Helmling;T. Henning;I. Hermelo;R. Arabí;L. Castano;F. Hernando;E. Herrero;A. Huber;P. Huke;E. Johnson;E. Juan;M. Kim;R. Klein;J. Klüter;A. Klutsch;M. Kürster;F. Labarga;A. Lamert;M. Lamp'on;L. Lara;W. Laun;U. Lemke;R. Lenzen;R. Launhardt;M. L. D. Fresno;M. J. L'opez-Gonz'alez;M. López‐Puertas;J. F. Salas;J. Lopez-Santiago;R. Luque;H. M. Madinabeitia;U. Mall;L. Mancini;L. Mancini;H. Mandel;E. Marfil;J. Molina;D. Fernández;E. L. Martín;S. Martín-Ruiz;C. Marvin;Richard J. Mathar;E. Mirabet;M. Moreno-Raya;A. Moya;R. Mundt;E. Nagel;V. Naranjo;L. Nortmann;G. Nowak;A. Ofir;R. Oreiro;E. Pallé;J. Panduro;J. Pascual;A. Pavlov;S. Pedraz;A. Pérez-Calpena;D. P. Medialdea;M. Perger;M. Perryman;M. Pluto;O. Rabaza;O. Rabaza;A. Ramón;R. Rebolo;P. Redondo;S. Reffert;S. Reinhart;P. Rhode;H. Rix;F. Rodler;F. Rodler;E. Rodr'iguez;C. Rodríguez-López;A. R. Trinidad;R. Rohloff;A. Rosich;S. Sadegi;E. Sánchez-Blanco;M. Carrasco;A. S'anchez-L'opez;J. Sanz-Forcada;P. Sarkis;L. Sarmiento;S. Schafer;J. H. M. M. Schmitt-J.-H.-M.-M.-Schmitt-2244209165;J. Schiller;P. Schöfer;E. Solano;O. Stahl;J. Strachan;J. Stürmer;J. Suárez;J. Suárez;H. Tabernero;H. Tabernero;M. Tala;S. Tulloch;R. Ulbrich;G. Veredas;J. Linares;F. Vilardell;K. Wagner;J. Winkler;V. Wolthoff;W. Xu;F. Yan;M. Z. Osorio
我们报告了第一颗被发现拥有行星的恒星，该行星是在CARMENES对M矮星周围系外行星的调查中通过径向速度（RV）观测到的。HD 147379 (V = 8.9杂志,M = 0.58±0.08 M⊙),一个明亮的M0.0 V星的距离10.7 pc,发现经历周期性房车半振幅的变化K = 5.1±0.4 M s−1和一段P = 86.54±0.06 d。RV卡门数据信号是发现,是在2016年和2017年之间,支持员工/凯克获得自2000年以来的观测。RV的变化被解释为是由一颗最小质量的行星P sin i = 25±2 m⊕造成的，是海王星质量的1.5倍，轨道半长轴a = 0.32 au，离心率低（e < 0.13）。HD 147379 b在恒星周围的温带内运行，在那里水可能以液态存在。RV时间序列和各种光谱指标在大约21.1 d的周期（及其一次谐波）显示了额外的变化迹象，我们将其归因于恒星的旋转周期。
We report on the first star discovered to host a planet detected by radial velocity (RV) observations obtained within the CARMENES survey for exoplanets around M dwarfs. HD 147379 ( V = 8.9 mag, M = 0.58 ± 0.08 M ⊙ ), a bright M0.0 V star at a distance of 10.7 pc, is found to undergo periodic RV variations with a semi-amplitude of K = 5.1 ± 0.4 m s −1 and a period of P = 86.54 ± 0.06 d. The RV signal is found in our CARMENES data, which were taken between 2016 and 2017, and is supported by HIRES/Keck observations that were obtained since 2000. The RV variations are interpreted as resulting from a planet of minimum mass m P sin i = 25 ± 2 M ⊕ , 1.5 times the mass of Neptune, with an orbital semi-major axis a = 0.32 au and low eccentricity ( e < 0.13). HD 147379 b is orbiting inside the temperate zone around the star, where water could exist in liquid form. The RV time-series and various spectroscopic indicators show additional hints of variations at an approximate period of 21.1 d (and its first harmonic), which we attribute to the rotation period of the star.