A terrestrial planet candidate in a temperate orbit around Proxima Centauri

被引：702

作者：

Anglada-Escude, Guillem ^{[1
]}

Amado, Pedro J. ^{[2
]}

Barnes, John ^{[3
]}

Berdinas, Zaira M. ^{[2
]}

Butler, R. Paul ^{[4
]}

Coleman, Gavin A. L. ^{[1
]}

de la Cueva, Ignacio ^{[5
]}

Dreizler, Stefan ^{[6
]}

Endl, Michael ^{[7
]}

Giesers, Benjamin ^{[6
]}

Jeffers, Sandra V. ^{[6
]}

Jenkins, James S. ^{[8
]}

Jones, Hugh R. A. ^{[9
]}

Kiraga, Marcin ^{[10
]}

Kuerster, Martin ^{[11
]}

Lopez-Gonzalez, Maria J. ^{[2
]}

Marvin, Christopher J. ^{[6
]}

Morales, Nicolas ^{[2
]}

Morin, Julien ^{[12
]}

Nelson, Richard P. ^{[1
]}

Ortiz, Jose L. ^{[2
]}

Ofir, Aviv ^{[13
]}

Paardekooper, Sijme-Jan ^{[1
]}

Reiners, Ansgar ^{[6
]}

Rodriguez, Eloy ^{[2
]}

Rodriguez-Lopez, Cristina ^{[2
]}

Sarmiento, Luis F. ^{[6
]}

Strachan, John P. ^{[1
]}

Tsapras, Yiannis ^{[14
]}

Tuomi, Mikko ^{[9
]}

Zechmeister, Mathias ^{[6
]}

机构：

[1] Queen Mary Univ London, Sch Phys & Astron, 327 Mile End Rd, London E1 4NS, England

[2] CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain

[3] Open Univ, Dept Phys Sci, Walton Hall, Milton Keynes MK7 6AA, Bucks, England

[4] Carnegie Inst Sci, Dept Terr Magnetism, 5241 Broad Branch Rd NW, Washington, DC 20015 USA

[5] Astroimagen, C Abad & Lasierra 58 Bis,6-2, Ibiza 07800, Spain

[6] Univ Gottingen, Inst Astrophys, Friedrich Hund Pl 1, D-37077 Gottingen, Germany

[7] Univ Texas Austin, McDonald Observ, 2515 Speedway,C1400, Austin, TX 78712 USA

[8] Univ Chile, Dept Astron, Camino El Observ 1515, Santiago, Chile

[9] Univ Hertfordshire, Sci & Technol Res Inst, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England

[10] Univ Warsaw Observ, Aleje Ujazdowskie 4, Warsaw, Poland

[11] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[12] Univ Montpellier, Lab Univers & Particules Montpellier, Pl E Bataillon CC 72, F-34095 Montpellier 05, France

[13] Weizmann Inst Sci, Dept Earth & Planetary Sci, 234 Herzl St, IL-76100 Rehovot, Israel

[14] Astron Rech Inst, Monchhofstr 12-14, D-69120 Heidelberg, Germany

来源：

NATURE | 2016年 / 536卷 / 7617期

基金：

美国国家科学基金会;

关键词：

TIME-SERIES ANALYSIS; MAIN-SEQUENCE STARS; RADIAL-VELOCITY; HABITABLE ZONE; SOUTHERN STARS; SUPER-EARTH; SPACED DATA; NO PLANET; GJ; 221; SEARCH;

D O I：

10.1038/nature19106

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

At a distance of 1.295 parsecs(1), the red dwarf Proxima Centauri (a Centauri C, GL 551, HIP 70890 or simply Proxima) is the Sun's closest stellar neighbour and one of the best-studied low-mass stars. It has an effective temperature of only around 3,050 kelvin, a luminosity of 0.15 per cent of that of the Sun, a measured radius of 14 per cent of the radius of the Sun2 and a mass of about 12 per cent of the mass of the Sun. Although Proxima is considered a moderately active star, its rotation period is about 83 days (ref. 3) and its quiescent activity levels and X-ray luminosity(4) are comparable to those of the Sun. Here we report observations that reveal the presence of a small planet with a minimum mass of about 1.3 Earth masses orbiting Proxima with a period of approximately 11.2 days at a semi-major-axis distance of around 0.05 astronomical units. Its equilibrium temperature is within the range where water could be liquid on its surface(5).

引用

页码：437 / +

页数：18

共 50 条

[31] Fractal Growth on the Surface of a Planet and in Orbit Around It
Ioannis Haranas
Ioannis Gkigkitzis
Athanasios Alexiou
Microgravity Science and Technology, 2014, 26 : 313 - 325
[32] Fractal Growth on the Surface of a Planet and in Orbit Around It
Haranas, Ioannis
Gkigkitzis, Ioannis
Alexiou, Athanasios
MICROGRAVITY SCIENCE AND TECHNOLOGY, 2014, 26 (05) : 313 - 325
[33] A wide-orbit giant planet in the high-mass b Centauri binary system
Markus Janson
Raffaele Gratton
Laetitia Rodet
Arthur Vigan
Mickaël Bonnefoy
Philippe Delorme
Eric E. Mamajek
Sabine Reffert
Lukas Stock
Gabriel-Dominique Marleau
Maud Langlois
Gaël Chauvin
Silvano Desidera
Simon Ringqvist
Lucio Mayer
Gayathri Viswanath
Vito Squicciarini
Michael R. Meyer
Matthias Samland
Simon Petrus
Ravit Helled
Matthew A. Kenworthy
Sascha P. Quanz
Beth Biller
Thomas Henning
Dino Mesa
Natalia Engler
Joseph C. Carson
Nature, 2021, 600 : 231 - 234
[34] A wide-orbit giant planet in the high-mass b Centauri binary system
Janson, Markus
Gratton, Raffaele
Rodet, Laetitia
Vigan, Arthur
Bonnefoy, Mickael
Delorme, Philippe
Mamajek, Eric E.
Reffert, Sabine
Stock, Lukas
Marleau, Gabriel-Dominique
Langlois, Maud
Chauvin, Gael
Desidera, Silvano
Ringqvist, Simon
Mayer, Lucio
Viswanath, Gayathri
Squicciarini, Vito
Meyer, Michael R.
Samland, Matthias
Petrus, Simon
Helled, Ravit
Kenworthy, Matthew A.
Quanz, Sascha P.
Biller, Beth
Henning, Thomas
Mesa, Dino
Engler, Natalia
Carson, Joseph C.
NATURE, 2021, 600 (7888) : 231 - +
[35] Terrestrial planet formation in a circumbinary disc around a coplanar binary
Childs, Anna C.
Martin, Rebecca G.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 507 (03) : 3461 - 3472
[36] Symmetries and rank deficiency in the orbit determination around another planet
Bonanno, C
Milani, A
CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, 2002, 83 (1-4): : 17 - 33
[37] Symmetries and Rank Deficiency in the Orbit Determination Around Another Planet
Claudio Bonanno
Andrea Milani
Celestial Mechanics and Dynamical Astronomy, 2002, 83 : 17 - 33
[38] PUMPING A TETHERED CONFIGURATION TO BOOST ITS ORBIT AROUND AN OBLATE PLANET
BREAKWELL, JV
GEARHART, JW
JOURNAL OF THE ASTRONAUTICAL SCIENCES, 1987, 35 (01): : 19 - 39
[39] Direct Imaging discovery of a second planet candidate around the possibly transiting planet host CVSO 30
Schmidt, T. O. B.
Neuhaeuser, R.
Briceno, C.
Vogt, N.
Raetz, St.
Seifahrt, A.
Ginski, C.
Mugrauer, M.
Buder, S.
Adam, C.
Hauschildt, P.
Witte, S.
Helling, Ch.
Schmitt, J. H. M. M.
ASTRONOMY & ASTROPHYSICS, 2016, 593
[40] Terrestrial planet formation around individual stars within binary star systems
Quintana, Elisa V.
Adams, Fred C.
Lissauer, Jack J.
Chambers, John E.
ASTROPHYSICAL JOURNAL, 2007, 660 (01): : 807 - 822

← 1 2 3 4 5 →