Lam, Kristine W. F., Csizmadia, Szilard, Astudillo-Defru, Nicola, Bonfils, Xavier ORCID: 0000-0001-9003-8894, Gandolfi, Davide ORCID: 0000-0001-8627-9628, Padovan, Sebastiano ORCID: 0000-0002-8652-3704, Esposito, Massimiliano ORCID: 0000-0002-6893-4534, Hellier, Coel ORCID: 0000-0002-3439-1439, Hirano, Teruyuki, Livingston, John ORCID: 0000-0002-4881-3620, Murgas, Felipe ORCID: 0000-0001-9087-1245, Smith, Alexis M. S., Collins, Karen A., Mathur, Savita, Garcia, Rafael A., Howell, Steve B., Santos, Nuno C., Dai, Fei, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Albrecht, Simon ORCID: 0000-0003-1762-8235, Almenara, Jose M., Artigau, Etienne, Barragan, Oscar ORCID: 0000-0003-0563-0493, Bouchy, Francois ORCID: 0000-0002-7613-393X, Cabrera, Juan ORCID: 0000-0001-6653-5487, Charbonneau, David, Chaturvedi, Priyanka, Chaushev, Alexander, Christiansen, Jessie L., Cochran, William D., De Meideiros, Jose R., Delfosse, Xavier, Diaz, Rodrigo F., Doyon, Rene, Eigmueller, Philipp, Figueira, Pedro, Forveille, Thierry, Fridlund, Malcolm, Gaisne, Guillaume, Goffo, Elisa, Georgieva, Iskra, Grziwa, Sascha, Guenther, Eike, Hatzes, Artie P., Johnson, Marshall C., Kabath, Petr, Knudstrup, Emil, Korth, Judith ORCID: 0000-0002-0076-6239, Lewin, Pablo, Lissauer, Jack J., Lovis, Christophe, Luque, Rafael, Melo, Claudio, Morgan, Edward H., Morris, Robert, Mayor, Michel, Narita, Norio, Osborne, Hannah L. M., Palle, Enric, Pepe, Francesco, Persson, Carina M., Quinn, Samuel N., Rauer, Heike, Redfield, Seth, Schlieder, Joshua E., Segransan, Damien, Serrano, Luisa M., Smith, Jeffrey C., Subjak, Jan, Twicken, Joseph D., Udry, Stephane, Van Eylen, Vincent ORCID: 0000-0001-5542-8870 and Vezie, Michael (2021). GJ 367b: A dense, ultrashort-period sub-Earth planet transiting a nearby red dwarf star. Science, 374 (6572). S. 1271 - 1321. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

Ultrashort-period (USP) exoplanets have orbital periods shorter than 1 day. Precise masses and radii of USP exoplanets could provide constraints on their unknown formation and evolution processes. We report the detection and characterization of the USP planet GJ 367b using high-precision photometry and radial velocity observations. GJ 367b orbits a bright (V-band magnitude of 10.2), nearby, and red (M-type) dwarf star every 7.7 hours. GJ 367b has a radius of 0.718 +/- 0.054 Earth-radii and a mass of 0.546 +/- 0.078 Earth-masses, making it a sub-Earth planet. The corresponding bulk density is 8.106 +/- 2.165 grams per cubic centimeter-close to that of iron. An interior structure model predicts that the planet has an iron core radius fraction of 86 +/- 5%, similar to that of Mercury's interior.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Lam, Kristine W. F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Csizmadia, SzilardUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Astudillo-Defru, NicolaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bonfils, XavierUNSPECIFIEDorcid.org/0000-0001-9003-8894UNSPECIFIED
Gandolfi, DavideUNSPECIFIEDorcid.org/0000-0001-8627-9628UNSPECIFIED
Padovan, SebastianoUNSPECIFIEDorcid.org/0000-0002-8652-3704UNSPECIFIED
Esposito, MassimilianoUNSPECIFIEDorcid.org/0000-0002-6893-4534UNSPECIFIED
Hellier, CoelUNSPECIFIEDorcid.org/0000-0002-3439-1439UNSPECIFIED
Hirano, TeruyukiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Livingston, JohnUNSPECIFIEDorcid.org/0000-0002-4881-3620UNSPECIFIED
Murgas, FelipeUNSPECIFIEDorcid.org/0000-0001-9087-1245UNSPECIFIED
Smith, Alexis M. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Collins, Karen A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mathur, SavitaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia, Rafael A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Howell, Steve B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Santos, Nuno C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dai, FeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ricker, George R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vanderspek, RolandUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Latham, David W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Seager, SaraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Winn, Joshua N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jenkins, Jon M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Albrecht, SimonUNSPECIFIEDorcid.org/0000-0003-1762-8235UNSPECIFIED
Almenara, Jose M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Artigau, EtienneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Barragan, OscarUNSPECIFIEDorcid.org/0000-0003-0563-0493UNSPECIFIED
Bouchy, FrancoisUNSPECIFIEDorcid.org/0000-0002-7613-393XUNSPECIFIED
Cabrera, JuanUNSPECIFIEDorcid.org/0000-0001-6653-5487UNSPECIFIED
Charbonneau, DavidUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chaturvedi, PriyankaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chaushev, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Christiansen, Jessie L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cochran, William D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
De Meideiros, Jose R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Delfosse, XavierUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Diaz, Rodrigo F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Doyon, ReneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eigmueller, PhilippUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Figueira, PedroUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Forveille, ThierryUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fridlund, MalcolmUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gaisne, GuillaumeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goffo, ElisaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Georgieva, IskraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grziwa, SaschaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guenther, EikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hatzes, Artie P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Johnson, Marshall C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kabath, PetrUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knudstrup, EmilUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Korth, JudithUNSPECIFIEDorcid.org/0000-0002-0076-6239UNSPECIFIED
Lewin, PabloUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lissauer, Jack J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lovis, ChristopheUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Luque, RafaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Melo, ClaudioUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morgan, Edward H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morris, RobertUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mayor, MichelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Narita, NorioUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Osborne, Hannah L. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Palle, EnricUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pepe, FrancescoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Persson, Carina M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Quinn, Samuel N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rauer, HeikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Redfield, SethUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schlieder, Joshua E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Segransan, DamienUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Serrano, Luisa M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Smith, Jeffrey C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Subjak, JanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Twicken, Joseph D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Udry, StephaneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Eylen, VincentUNSPECIFIEDorcid.org/0000-0001-5542-8870UNSPECIFIED
Vezie, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-608019
DOI: 10.1126/science.aay3253
Journal or Publication Title: Science
Volume: 374
Number: 6572
Page Range: S. 1271 - 1321
Date: 2021
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Place of Publication: WASHINGTON
ISSN: 1095-9203
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ERROR-CORRECTION; SIZED EXOPLANET; SUPER-EARTHS; MASS; STELLAR; TELESCOPE; MERCURY; MODELMultiple languages
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/60801

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