Physical properties of the planetary systems WASP-45 and WASP-46 from simultaneous multiband photometry | |
Ciceri, S.1; Mancini, L.1,2; Southworth, J.3; Lendl, M.4,5; Tregloan-Reed, J.3,6; Brahm, R.7,8; Chen, G.9,10; D'Ago, G.11,12,13; Dominik, M.14; Jaimes, R. Figuera13,15; Galianni, P.13; Harpsoe, K.16; Hinse, T. C.17; Jorgensen, U. G.15; Juncher, D.15; Korhonen, H.15,18; Liebig, C.13; Rabus, M.1,7; Bonomo, A. S.2; Bott, K.19,20; Henning, Th1; Jordan, A.7,8; Sozzetti, A.2; Alsubai, K. A.21; Andersen, J. M.15,22; Bajek, D.13; Bozza, V.12; Bramich, D. M.20; Browne, P.13; Novati, S. Calchi11,12,23; Damerdji, Y.24; Diehl, C.25,26; Elyiv, A.23,27,28; Giannini, E.24; Gu SH(顾盛宏)29,30; Hundertmark, M.15; Kains, N.31; Penny, M.15,32; Popovas, A.15; Rahvar, S.33; Scarpetta, G.11,12,22; Schmidt, R. W.24; Skottfelt, J.15,34; Snodgrass, C.35,36; Surdej, J.23; Vilela, C.3; Wang XB(王晓彬)28,29; Wertz, O.23 | |
发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2016-02-11 | |
卷号 | 456期号:1页码:990-1002 |
DOI | 10.1093/mnras/stv2698 |
产权排序 | 第29完成单位 |
收录类别 | SCI |
关键词 | Planets And Satellites: Fundamental Parameters Stars: Fundamental Parameters Stars: Individual: Wasp-45 Stars: Individual: Wasp-46 |
摘要 | Accurate measurements of the physical characteristics of a large number of exoplanets are useful to strongly constrain theoretical models of planet formation and evolution, which lead to the large variety of exoplanets and planetary-system configurations that have been observed. We present a study of the planetary systems WASP-45 and WASP-46, both composed of a main-sequence star and a close-in hot Jupiter, based on 29 new high-quality light curves of transits events. In particular, one transit of WASP-45 b and four of WASP-46 b were simultaneously observed in four optical filters, while one transit of WASP-46 b was observed with the NTT obtaining a precision of 0.30 mmag with a cadence of roughly 3 min. We also obtained five new spectra of WASP-45 with the FEROS spectrograph. We improved by a factor of 4 the measurement of the radius of the planet WASP-45 b, and found that WASP-46 b is slightly less massive and smaller than previously reported. Both planets now have a more accurate measurement of the density (0.959 +/- 0.077 rho Jup instead of 0.64 +/- 0.30 rho Jup for WASP-45 b, and 1.103 +/- 0.052 rho Jup instead of 0.94 +/- 0.11 rho Jup for WASP-46 b). We tentatively detected radius variations with wavelength for both planets, in particular in the case of WASP-45 b we found a slightly larger absorption in the redder bands than in the bluer ones. No hints for the presence of an additional planetary companion in the two systems were found either from the photometric or radial velocity measurements. |
资助项目 | NTT[088.C-0204(A)] ; KASI (Korea Astronomy and Space Science Institute)[2012-1-410-02] ; KASI (Korea Astronomy and Space Science Institute)[2013-9-400-00] ; European Union[313014] ; Korea Research Council for Fundamental Science and Technology (KRCF) through the Young Research Scientist Fellowship Program ; Communaute francaise de Belgique - Actions de recherche concert certees - Academie Wallonie-Europe ; National Natural Science Foundation of China[10873031] ; Communaute francaise de Belgique - Actions de recherche concert certees - Academie Wallonie-Europe ; National Natural Science Foundation of China[11473066] |
项目资助者 | NTT(088.C-0204(A)) ; KASI (Korea Astronomy and Space Science Institute)(2012-1-410-02,2013-9-400-00) ; European Union(313014) ; Korea Research Council for Fundamental Science and Technology (KRCF) through the Young Research Scientist Fellowship Program ; Communaute francaise de Belgique - Actions de recherche concert certees - Academie Wallonie-Europe ; National Natural Science Foundation of China(10873031,11473066) |
语种 | 英语 |
学科领域 | 天文学 ; 天体物理学 ; 实测天体物理学 ; 恒星与银河系 ; 恒星物理学 ; 恒星天文学 |
文章类型 | Article |
出版者 | OXFORD UNIV PRESS |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
ISSN | 0035-8711 |
URL | 查看原文 |
WOS记录号 | WOS:000368010000107 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | TRANSITING EXTRASOLAR PLANETS ; STELLAR EVOLUTION DATABASE ; HIGH-PRECISION PHOTOMETRY ; LIMB-DARKENING LAW ; LIGHT-CURVE ; TRANSMISSION SPECTRA ; ATMOSPHERE MODELS ; SURFACE GRAVITIES ; LOW-MASS ; TELESCOPE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/9401 |
专题 | 系外行星研究组 中国科学院天体结构与演化重点实验室 |
通讯作者 | Ciceri, S. |
作者单位 | 1.Max Planck Institute for Astronomy, Königstuhl 17, D-69117 – Heidelberg, Germany 2.INAF – Osservatorio Astrofisico di Torino, via Osservatorio 20, I-10025 – Pino Torinese, Italy 3.Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK 4.Austrian Academy of Sciences, Space Research Institute, Schmiedlstrasse 6, A-8042 Graz, Austria 5.Observatoire de Genève, Université de Genève, Chemin des maillettes 51, CH-1290 Sauverny, Switzerland 6.NASA Ames Research Center, Moffett Field, CA 94035, USA 7.Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 – Macul, Santiago, Chile 8.Millennium Institute of Astrophysics, Av. Vicuña Mackenna 4860, 7820436 – Macul, Santiago, Chile 9.Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China 10.Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain 11.International Institute for Advanced Scientific Studies (IIASS), Via G. Pellegrino 19, I-84019 – Vietri Sul Mare (SA), Italy 12.Department of Physics ‘E. R. Caianiello’, University of Salerno, Via Giovanni Paolo II 132, Fisciano (SA) – 84084 13.Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, I-80126 Napoli, Italy 14.SUPA, University of St Andrews, School of Physics & Astronomy, North Haugh, St Andrews, Fife KY16 9SS, UK 15.European Southern Observatory, Karl-Schwarzschild Straße 2, D-85748 – Garching bei München, Germany 16.Niels Bohr Institute & Centre for Star and Planet Formation, University of Copenhagen, Øster Voldgade 5, DK-1350 – Copenhagen K, Denmark 17.Korea Astronomy and Space Science Institute, 305-348 Daejeon, Republic of Korea 18.Finnish Centre for Astronomy with ESO (FINCA), University of Turku, Väisäläntie 20, FI-21500 Piikkiö, Finland 19.School of Physics, UNSW Australia, NSW 2052, Australia 20.Australian Centre for Astrobiology, UNSW Australia, NSW 2052, Australia 21.Qatar Environment and Energy Research Institute, Qatar Foundation, Tornado Tower, Floor 19, PO Box 5825, Doha, Qatar 22.Department of Astronomy, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA 23.NASA Exoplanet Science Institute, MS 100-22, California Institute of Technology, Pasadena CA 91125 24.Institut d'Astrophysique et de Géophysique, Université de Liège, Allée du 6 Août 17, Bât. B5C, Liège 1, B-4000 Belgium 25.Astronomisches Rechen-Institut, Zentrum für Astronomie, Universität Heidelberg, Mnchhofstraße 12-14, D-69120 Heidelberg, Germany 26.Hamburger Sternwarte, Universität Hamburg, Gojenbergsweg 112, D-21029 Hamburg, Germany 27.Dipartimento di Fisica e Astronomia, Universit di Bologna, Viale Berti Pichat 6/2, I-40127 Bologna, Italy 28.Main Astronomical Observatory, Academy of Sciences of Ukraine, vul. Akademika Zabolotnoho 27, UA-03680 Kyiv, Ukraine 29.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 30.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011,China 31.Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA 32.Department of Astronomy, Ohio State University, McPherson Laboratory, 140 West 18th Avenue, Columbus, OH 43210-1173, USA 33.Department of Physics, Sharif University of Technology, PO Box 11155-9161 Tehran, Iran 34.Centre for Electronic Imaging, Dept. of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK 35.Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK 36.Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany |
推荐引用方式 GB/T 7714 | Ciceri, S.,Mancini, L.,Southworth, J.,et al. Physical properties of the planetary systems WASP-45 and WASP-46 from simultaneous multiband photometry[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,456(1):990-1002. |
APA | Ciceri, S..,Mancini, L..,Southworth, J..,Lendl, M..,Tregloan-Reed, J..,...&Wertz, O..(2016).Physical properties of the planetary systems WASP-45 and WASP-46 from simultaneous multiband photometry.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,456(1),990-1002. |
MLA | Ciceri, S.,et al."Physical properties of the planetary systems WASP-45 and WASP-46 from simultaneous multiband photometry".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 456.1(2016):990-1002. |
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