Arid
DOI10.1051/0004-6361/201526763
Transiting exoplanets from the CoRoT space mission XXVIII. CoRoT-33b, an object in the brown dwarf desert with 2:3 commensurability with its host star
Csizmadia, Sz1; Hatzes, A.2; Gandolfi, D.3,4; Deleuil, M.5; Bouchy, F.5; Fridlund, M.6,7,8; Szabados, L.9; Parviainen, H.10; Cabrera, J.1; Aigrain, S.11; Alonso, R.12,13; Almenara, J. -M.5; Baglin, A.14; Borde, P.15,16; Bonomo, A. S.17; Deeg, H. J.12,13; Diaz, R. F.18; Erikson, A.1; Ferraz-Mello, S.19; Tadeu dos Santos, M.19; Guenther, E. W.2; Guillot, T.20; Grziwa, S.21; Hebrard, G.22; Klagyivik, P.12,13; Ollivier, M.23; Paetzold, M.21; Rauer, H.1,24; Rouan, D.14; Santerne, A.25; Schneider, J.26; Mazeh, T.27; Wuchterl, G.2; Carpano, S.28; Ofir, A.29
通讯作者Csizmadia, Sz
来源期刊ASTRONOMY & ASTROPHYSICS
ISSN1432-0746
出版年2015
卷号584
英文摘要

We report the detection of a rare transiting brown dwarf with a mass of 59 M-Jup and radius of 1.1 R-Jup around the metal-rich, [Fe/H] = +0.44, G9V star CoRoT-33. The orbit is eccentric (e = 0.07) with a period of 5.82 d. The companion, CoRoT-33b, is thus a new member in the so-called brown dwarf desert. The orbital period is within 3% to a 3:2 resonance with the rotational period of the star. CoRoT-33b may be an important test case for tidal evolution studies. The true frequency of brown dwarfs close to their host stars (P < 10 d) is estimated to be approximately 0.2% which is about six times smaller than the frequency of hot Jupiters in the same period range. We suspect that the frequency of brown dwarfs declines faster with decreasing period than that of giant planets.


英文关键词brown dwarfs stars: rotation eclipses
类型Article
语种英语
国家Germany ; Italy ; France ; Netherlands ; Sweden ; Hungary ; England ; Spain ; Switzerland ; Brazil ; Portugal ; Israel
收录类别SCI-E
WOS记录号WOS:000366936800013
WOS关键词SOLAR-TYPE STARS ; SOPHIE VELOCIMETRY ; SHORT-PERIOD ; DARKENING COEFFICIENTS ; MODEL ATMOSPHERES ; PLANET OCCURRENCE ; LIGHT CURVES ; MASS ; COMPANIONS ; CANDIDATES
WOS类目Astronomy & Astrophysics
WOS研究方向Astronomy & Astrophysics
来源机构University of Oxford ; E17
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186017
作者单位1.German Aerosp Ctr, Inst Planetary Res, D-12489 Berlin, Germany;
2.Thuringer Landessternwarte, D-07778 Tautenburg, Germany;
3.Univ Turin, Dipartimento Fis, I-10125 Turin, Italy;
4.Heidelberg Univ, Zentrum Astron, Landessternwarte Konigstuhl, D-69117 Heidelberg, Germany;
5.Aix Marseille Univ, CNRS, LAM Lab Astrophys Marseille UMR 7326, F-13388 Marseille, France;
6.Max Planck Inst Astron, D-69117 Heidelberg, Germany;
7.Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands;
8.Chalmers Univ Technol, Onsala Space Observ, Dept Earth & Space Sci, S-43992 Onsala, Sweden;
9.Hungarian Acad Sci, Konkoly Observ, MTA CSFK, Budapest, Hungary;
10.Univ Oxford, Dept Phys, Subdept Astrophys, Oxford OX1 3RH, England;
11.Univ Oxford, Dept Phys, Oxford OX1 3RH, England;
12.Inst Astrofis Canarias, Tenerife 38205, Spain;
13.Univ La Laguna, Dept Astrofis, Tenerife 38206, Spain;
14.Univ Paris Diderot, UPMC, Observ Paris, LESIA,UMR CNRS 8109, F-92195 Meudon, France;
15.Univ Bordeaux, LAB, UMR 5804, F-33270 Floirac, France;
16.CNRS, F-33270 Floirac, France;
17.INAF Osservatorio Astrofis Torino, I-10025 Pino Torinese, TO, Italy;
18.Univ Geneva, Observ Astron, CH-1290 Versoix, Switzerland;
19.IAG Univ Sao Paulo, BR-1226 Sao Paulo, Brazil;
20.Univ Nice Sophia Antipolis, CNRS UMR 6202, Observ Cote dAzur, F-06304 Nice 4, France;
21.Univ Cologne, Rhein Inst Umweltforsch, D-50931 Cologne, Germany;
22.Univ Paris 06, UMR CNRS 7095, Inst Astrophys Paris, F-75014 Paris, France;
23.Univ Paris 11, Inst Astrophys Spatiale, F-91405 Orsay, France;
24.TU Berlin, Ctr Astron & Astrophys, D-10623 Berlin, Germany;
25.Univ Porto, CAUP, Inst Astrofis & Ciencias Espaco, P-4150762 Oporto, Portugal;
26.Univ Paris Diderot, UMR CNRS 8102, Observ Paris, LUTH, F-92195 Meudon, France;
27.Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-39040 Tel Aviv, Israel;
28.Max Planck Inst Extraterr Phys, D-85748 Garching, Germany;
29.Weizmann Inst Sci, Dept Earth & Planetary Sci, IL-76100 Rehovot, Israel
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Csizmadia, Sz,Hatzes, A.,Gandolfi, D.,et al. Transiting exoplanets from the CoRoT space mission XXVIII. CoRoT-33b, an object in the brown dwarf desert with 2:3 commensurability with its host star[J]. University of Oxford, E17,2015,584.
APA Csizmadia, Sz.,Hatzes, A..,Gandolfi, D..,Deleuil, M..,Bouchy, F..,...&Ofir, A..(2015).Transiting exoplanets from the CoRoT space mission XXVIII. CoRoT-33b, an object in the brown dwarf desert with 2:3 commensurability with its host star.ASTRONOMY & ASTROPHYSICS,584.
MLA Csizmadia, Sz,et al."Transiting exoplanets from the CoRoT space mission XXVIII. CoRoT-33b, an object in the brown dwarf desert with 2:3 commensurability with its host star".ASTRONOMY & ASTROPHYSICS 584(2015).
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