Substellar Companions to Evolved Intermediate-Mass Stars: HD 145457 and HD 180314

被引：37

作者：

Sato, Bun'ei ^{[1
]}

Omiya, Masashi ^{[2
]}

Liu, Yujuan ^{[3
]}

Harakawa, Hiroki ^{[4
]}

Izumiura, Hideyuki ^{[5
,6
]}

Kambe, Eiji ^{[5
]}

Toyota, Eri ^{[7
]}

Murata, Daisuke ^{[8
]}

Lee, Byeong-Cheol ^{[2
,9
]}

Masuda, Seiji ^{[10
]}

Takeda, Yoichi ^{[6
,11
]}

Yoshida, Michitoshi ^{[12
]}

Itoh, Yoichi ^{[8
]}

Ando, Hiroyasu ^{[6
,11
]}

Kokubo, Eiichiro ^{[6
,11
]}

Ida, Shigeru ^{[4
]}

Zhao, Gang ^{[13
]}

Han, Inwoo ^{[2
]}

机构：

[1] Tokyo Inst Technol, Global Edge Inst, Meguro Ku, Tokyo 1528550, Japan

[2] Korea Astron & Space Sci Inst, Taejon 305348, South Korea

[3] Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China

[4] Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, Tokyo 1528551, Japan

[5] Natl Inst Nat Sci, Natl Astron Observ Japan, Okayama Astrophys Observ, Kamogata, Okayama 7190232, Japan

[6] Grad Univ Adv Studies, Kanagawa 2400193, Japan

[7] Kobe Sci Museum, Chuo Ku, Kobe, Hyogo 6500046, Japan

[8] Kobe Univ, Grad Sch Sci, Nada Ku, Kobe, Hyogo 6578501, Japan

[9] Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Taegu 702701, South Korea

[10] Tokushima Sci Museum, Itano, Tokushima 7790111, Japan

[11] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[12] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan

[13] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2010年 / 62卷 / 04期

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

stars: individual (HD 145457); stars: individual (HD 180314); stars: planetary systems; techniques: radial velocities; GIANT PLANET FORMATION; F-TYPE STARS; EXTRASOLAR PLANETS; OKAYAMA HIDES; BROWN DWARFS; IODINE CELLS; SUBARU HDS; K-GIANTS; EXOPLANETS; ABUNDANCES;

D O I：

10.1093/pasj/62.4.1063

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on the detection of two substellar companions orbiting around evolved intermediate-mass stars by precise Doppler measurements at Subaru Telescope and Okayama Astrophysical Observatory. HD 145457 is a K0 giant with a mass of 1.9 M-circle dot, and has a planet of minimum mass, m(2) sin i = 2.9 M-J, orbiting with a period of P = 176 d and eccentricity of e = 0.11. HD 180314 is also a K0 giant with 2.6 M-circle dot, and hosts a substellar companion of m2 sin i = 22 M-J, which falls in the brown-dwarf mass regime, in an orbit with P = 396 d and e = 0.26. HD 145457b is one of the innermost planets and HD 180314 b is the seventh candidate of a brown-dwarf-mass companion found around evolved intermediate-mass stars.

引用

页码：1063 / 1069

页数：7

共 50 条

[41] The CORALIE survey for southern extra-solar planets - VIII. The very low-mass companions of HD 141937, HD 162020, HD 168443 and HD 202206: Brown dwarfs or "superplanets"? [J].

Udry, S ;

Mayor, M ;

Naef, D ;

Pepe, F ;

Queloz, D ;

Santos, NC ;

Burnet, M .

ASTRONOMY & ASTROPHYSICS, 2002, 390 (01) :267-279

[42] VERY LOW-MASS STELLAR AND SUBSTELLAR COMPANIONS TO SOLAR-LIKE STARS FROM MARVELS. VI. A GIANT PLANET AND A BROWN DWARF CANDIDATE IN A CLOSE BINARY SYSTEM HD 87646 [J].

Ma, Bo ;

Ge, Jian ;

Wolszczan, Alex ;

Muterspaugh, Matthew W. ;

Lee, Brian ;

Henry, Gregory W. ;

Schneider, Donald P. ;

Martin, Eduardo L. ;

Niedzielski, Andrzej ;

Xie, Jiwei ;

Fleming, Scott W. ;

Thomas, Neil ;

Williamson, Michael ;

Zhu, Zhaohuan ;

Agol, Eric ;

Bizyaev, Dmitry ;

da Costa, Luiz Nicolaci ;

Jiang, Peng ;

Martinez Fiorenzano, A. F. ;

Gonzalez Hernandez, Jonay I. ;

Guo, Pengcheng ;

Grieves, Nolan ;

Li, Rui ;

Liu, Jane ;

Mahadevan, Suvrath ;

Mazeh, Tsevi ;

Duy Cuong Nguyen ;

Paegert, Martin ;

Sithajan, Sirinrat ;

Stassun, Keivan ;

Thirupathi, Sivarani ;

van Eyken, Julian C. ;

Wan, Xiaoke ;

Wang, Ji ;

Wisniewski, John P. ;

Zhao, Bo ;

Zucker, Shay .

ASTRONOMICAL JOURNAL, 2016, 152 (05)

[43] Companions to Kepler giant stars: A long-period eccentric sub-stellar companion to KIC 3526061 and a stellar companion to HD 187878 [J].

Karjalainen, Marie ;

Karjalainen, Raine ;

Hatzes, Artie P. ;

Lehmann, Holger ;

Kervella, Pierre ;

Hekker, Saskia ;

Van Winckel, Hans ;

Uberlauer, Jakub ;

Vitkova, Michaela ;

Skarka, Marek ;

Kabath, Petr ;

Prins, Saskia ;

Tkachenko, Andrew ;

Cochran, William D. ;

Jorissen, Alain .

ASTRONOMY & ASTROPHYSICS, 2022, 668

[44] Mg and Al production in intermediate-mass asymptotic giant branch stars [J].

Karakas, A. I. ;

Lugaro, M. ;

Ugalde, C. ;

Wiescher, M. ;

Gorres, J. .

NEW ASTRONOMY REVIEWS, 2006, 50 (7-8) :500-503

[45] Evolution and yields of extremely metal-poor intermediate-mass stars [J].

Herwig, F .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2004, 155 (02) :651-666

[46] ASSEMBLING THE BUILDING BLOCKS OF GIANT PLANETS AROUND INTERMEDIATE-MASS STARS [J].

Kretke, K. A. ;

Lin, D. N. C. ;

Garaud, P. ;

Turner, N. J. .

ASTROPHYSICAL JOURNAL, 2009, 690 (01) :407-415

[47] Planets around evolved intermediate-mass stars II. Are there really planets around IC 4651 No. 9122, NGC2423 No. 3, and NGC 4349 No. 127? [J].

Delgado Mena, E. ;

Lovis, C. ;

Santos, N. C. ;

Gomez da Silva, J. ;

Mortier, A. ;

Tsantaki, M. ;

Sousa, S. G. ;

Figueira, P. ;

Cunha, M. S. ;

Campante, T. L. ;

Adibekyan, V. ;

Faria, J. P. ;

Montalto, M. .

ASTRONOMY & ASTROPHYSICS, 2018, 619

[48] The discovery of a planetary candidate around the evolved low-mass Kepler giant star HD 175370 [J].

Hrudkova, M. ;

Hatzes, A. ;

Karjalainen, R. ;

Lehmann, H. ;

Hekker, S. ;

Hartmann, M. ;

Tkachenko, A. ;

Prins, S. ;

Van Winckel, H. ;

De Nutte, R. ;

Dumortier, L. ;

Fremat, Y. ;

Hensberge, H. ;

Jorissen, A. ;

Lampens, P. ;

Laverick, M. ;

Lombaert, R. ;

Papics, P. I. ;

Raskin, G. ;

Sodor, A. ;

Thoul, A. ;

Van Eck, S. ;

Waelkens, C. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 464 (01) :1018-1028

[49] RETIRED A STARS AND THEIR COMPANIONS. VI. A PAIR OF INTERACTING EXOPLANET PAIRS AROUND THE SUBGIANTS 24 SEXTANIS AND HD 200964 [J].

Johnson, John Asher ;

Payne, Matthew ;

Howard, Andrew W. ;

Clubb, Kelsey I. ;

Ford, Eric B. ;

Bowler, Brendan P. ;

Henry, Gregory W. ;

Fischer, Debra A. ;

Marcy, Geoffrey W. ;

Brewer, John M. ;

Schwab, Christian ;

Reffert, Sabine ;

Lowe, Thomas B. .

ASTRONOMICAL JOURNAL, 2011, 141 (01)

[50] CORALIE radial-velocity search for companions around evolved stars (CASCADES) III. A new Jupiter host-star: in-depth analysis of HD 29399 using TESS data [J].

Ottoni, G. ;

Udry, S. ;

Segransan, D. ;

Buldgen, G. ;

Lovis, C. ;

Eggenberger, P. ;

Pezzotti, C. ;

Adibekyan, V. ;

Marmier, M. ;

Mayor, M. ;

Santos, N. C. ;

Sousa, S. G. ;

Lagarde, N. ;

Charbonnel, C. .

ASTRONOMY & ASTROPHYSICS, 2022, 657

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