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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; Ciceri, S (reprint author), Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2016-02-11
卷号456期号:1页码:990-1002
DOI10.1093/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.
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Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
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
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
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 (reprint author), Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany.
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
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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..,...&Ciceri, S .(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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