GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star-Reference-Cited by-同舟云学术

GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star

Published:2021-12-03 Issue:6572 Volume:374 Page:1271-1275
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Lam Kristine W. F.¹²^ORCID,Csizmadia Szilárd²^ORCID,Astudillo-Defru Nicola³^ORCID,Bonfils Xavier⁴^ORCID,Gandolfi Davide⁵^ORCID,Padovan Sebastiano²⁶^ORCID,Esposito Massimiliano⁷^ORCID,Hellier Coel⁸^ORCID,Hirano Teruyuki⁹^ORCID,Livingston John¹⁰^ORCID,Murgas Felipe¹¹¹²^ORCID,Smith Alexis M. S.²^ORCID,Collins Karen A.¹³^ORCID,Mathur Savita¹¹¹²^ORCID,Garcia Rafael A.¹⁴¹⁵^ORCID,Howell Steve B.¹⁶,Santos Nuno C.¹⁷¹⁸^ORCID,Dai Fei¹⁹^ORCID,Ricker George R.²⁰^ORCID,Vanderspek Roland²⁰^ORCID,Latham David W.¹³^ORCID,Seager Sara²⁰²¹²²^ORCID,Winn Joshua N.²³^ORCID,Jenkins Jon M.¹⁶^ORCID,Albrecht Simon²⁴^ORCID,Almenara Jose M.⁴^ORCID,Artigau Etienne⁴,Barragán Oscar²⁵^ORCID,Bouchy François²⁶,Cabrera Juan⁴^ORCID,Charbonneau David¹³,Chaturvedi Priyanka⁷^ORCID,Chaushev Alexander¹^ORCID,Christiansen Jessie L.²⁷^ORCID,Cochran William D.²⁸^ORCID,De Meideiros José R.²⁹^ORCID,Delfosse Xavier⁴^ORCID,Díaz Rodrigo F.³⁰^ORCID,Doyon René³¹^ORCID,Eigmüller Philipp²^ORCID,Figueira Pedro¹⁷³²,Forveille Thierry⁴,Fridlund Malcolm³³³⁴^ORCID,Gaisné Guillaume⁴,Goffo Elisa⁵⁷^ORCID,Georgieva Iskra³³^ORCID,Grziwa Sascha³⁵^ORCID,Guenther Eike⁷^ORCID,Hatzes Artie P.⁷^ORCID,Johnson Marshall C.³⁶^ORCID,Kabáth Petr³⁷^ORCID,Knudstrup Emil²⁴^ORCID,Korth Judith³⁵³⁸^ORCID,Lewin Pablo³⁹^ORCID,Lissauer Jack J.¹⁶⁴⁰^ORCID,Lovis Christophe²⁶,Luque Rafael¹¹¹²^ORCID,Melo Claudio³²^ORCID,Morgan Edward H.²⁰^ORCID,Morris Robert¹⁶⁴¹^ORCID,Mayor Michel²⁶^ORCID,Narita Norio¹¹⁴²⁴³⁴⁴^ORCID,Osborne Hannah L. M.⁴⁵^ORCID,Palle Enric¹¹¹²^ORCID,Pepe Francesco²⁶^ORCID,Persson Carina M.³³,Quinn Samuel N.¹³^ORCID,Rauer Heike¹²⁴⁶,Redfield Seth⁴⁷^ORCID,Schlieder Joshua E.⁴⁸,Ségransan Damien²⁶^ORCID,Serrano Luisa M.⁵^ORCID,Smith Jeffrey C.¹⁶⁴¹^ORCID,Šubjak Ján³⁷⁴⁹^ORCID,Twicken Joseph D.¹⁶⁴¹^ORCID,Udry Stéphane²⁶,Van Eylen Vincent⁴⁵^ORCID,Vezie Michael²⁰^ORCID

Affiliation:

1. Centre for Astronomy and Astrophysics, Technical University Berlin, 10585 Berlin, Germany.

2. Institute of Planetary Research, German Aerospace Center, 12489 Berlin, Germany.

3. Departamento de Matemática y Física Aplicadas, Universidad Católica de la Santísima Concepción, Concepción, Chile.

4. Université Grenoble Alpes, Centre national de la recherche scientifique, Institut de Planétologie et d’Astrophysique de Grenoble, F-38000 Grenoble, France.

5. Dipartimento di Fisica, Università degli Studi di Torino, I-10125, Torino, Italy.

6. WorkGroup Solutions GmbH at European Organisation for the Exploitation of Meteorological Satellites, 64295 Darmstadt, Germany.

7. Thüringer Landessternwarte Tautenburg, D-07778 Tautenberg, Germany.

8. Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK.

9. Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo, Japan.

10. Department of Astronomy, University of Tokyo, Tokyo, Japan.

11. Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain.

12. Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain.

13. Center for Astrophysics, Harvard and Smithsonian, Cambridge, MA, USA.

14. Institut de Recherche sur les Lois Fondamentales de l’Universe, Commissariat à l’Énergie Atomique et aux énergies alternatives, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.

15. Astrophysique, Instrumentation et modélisation, Commissariat à l’Énergie Atomique et aux énergies alternatives, Centre National de la recherche scientifique, Université Paris-Saclay, Université Paris Diderot, Sorbonne Paris Cité, F-91191 Gif-sur-Yvette, France.

16. NASA Ames Research Center, Moffett Field, CA, USA.

17. Instituto de Astrofísica e Ciênciasdo Espaço, Universidade do Porto, Centro de Astrofísica da Universidade do Porto, 4150-762 Porto, Portugal.

18. Departamento de Física e Astronomia, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal.

19. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA.

20. Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.

21. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.

22. Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA, USA.

23. Department of Astrophysical Sciences, Princeton University, Princeton, NJ, USA.

24. Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark.

25. Subdepartment of Astrophysics, Department of Physics, University of Oxford, Oxford, OX1 3RH, UK.

26. Geneva Observatory, University of Geneva, 1290 Versoix, Switzerland.

27. Infrared Processing and Analysis Center, Caltech, Pasadena, CA, USA.

28. Center for Planetary Systems Habitability and McDonald Observatory, The University of Texas, Austin, TX, USA.

29. Departamento de Física, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN, Brazil.

30. International Center for Advanced Studies and Instituto de Ciencias Físicas (Consejo Nacional de Investigaciones Científicas y Técnicas), Escuela de Ciencia y Tecnología - Universidad Nacional de San Martín, Campus Miguelete, Buenos Aires, Argentina.

31. Institut de Recherche sur les Exoplantes, Dpartement de Physique, Universit de Montral, Montral, QC, H3C 3J7, Canada.

32. European Southern Observatory, Vitacura, Santiago, Chile.

33. Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, 439 92 Onsala, Sweden.

34. Leiden Observatory, University of Leiden, 2300 RA, Leiden, Netherlands.

35. Rheinisches Institut für Umweltforschung an der Universität zu Köln, D-50931 Köln, Germany.

36. Las Cumbres Observatory, Goleta, CA, USA.

37. Astronomical Institute, Czech Academy of Sciences, 25165 Ondřejov, Czech Republic.

38. Department of Space, Earth and Environment, Astronomy and Plasma Physics, Chalmers University of Technology, 412 96 Gothenburg, Sweden.

39. The Maury Lewin Astronomical Observatory, Glendora, CA, USA.

40. Geological Sciences Department, Stanford University, CA, USA.

41. Search for Extraterrestrial Intelligence Institute, Mountain View, CA, USA.

42. Komaba Institute for Science, The University of Tokyo, Tokyo, Japan.

43. Japan Science and Technology Agency, Precursory Research for Embryonic Science and Technology, Tokyo, Japan.

44. Astrobiology Center, Tokyo, Japan.

45. Mullard Space Science Laboratory, University College London, Dorking, Surrey, RH5 6NT, UK.

46. Institute of Geological Sciences, Freie Universität Berlin, D-12249 Berlin, Germany.

47. Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT, USA.

48. NASA Goddard Space Flight Center, Greenbelt, MD, USA.

49. Astronomical Institute of Charles University, 180 00 Prague, Czech Republic.

Abstract

A nearby iron-rich sub-Earth planet The mass and radius of an exoplanet determine its mean density, which provides information about the possible interior structure. Lam et al . have identified a planet on a 7.7-hour orbit around a nearby red dwarf star. The authors determined the planet’s radius from the transit, then used radial velocity observations to measure the mass. They found a sub-Earth–sized planet with a density almost equivalent to pure iron. Its high surface temperature is close to the vaporization point of iron, suggesting that it is the iron core of a planet that has lost its outer mantle. —KTS

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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