Physical properties and transmission spectrum of the WASP-74 planetary system from multiband photometry

doi:10.1093/mnras/stz661

	Physical properties and transmission spectrum of the WASP-74 planetary system from multiband photometry
	Mancini, L.1,2,3,4; Southworth, J.5; Molliere, P.6; Tregloan-Reed, J.7; Juvan, I. G.8,9,10; Chen, G.11,12; Sarkis, P.2; Bruni, I.13; Ciceri, S.14; Andersen, M. I.15,16
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2019-06-01
卷号	485 期号:4 页码:5168-5179
关键词	techniques: photometric stars: fundamental parameters stars: individual: WASP-74 planetary systems
ISSN号	0035-8711
DOI	10.1093/mnras/stz661
产权排序	第38完成单位
文献子类	Article
英文摘要	We present broad-band photometry of 11 planetary transits of the hot Jupiter WASP-74 b, using three medium-class telescopes and employing the telescope-defocusing technique. Most of the transits were monitored through I filters and one was simultaneously observed in five optical (U, g', r', i', z') and three near-infrared (J, H, K) passbands, for a total of 18 light curves. We also obtained new high-resolution spectra of the host star. We used these new data to review the orbital and physical properties of the WASP-74 planetary system. We were able to better constrain the main system characteristics, measuring smaller radius and mass for both the hot Jupiter and its host star than previously reported in the literature. Joining our optical data with those taken with the HST in the near infrared, we built up an observational transmission spectrum of the planet, which suggests the presence of strong optical absorbers, as TiO and VO gases, in its atmosphere.
学科主题	天文学 ; 恒星与银河系 ; 恒星天文学
URL标识	查看原文
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
资助项目	Max Planck Gesellschaft ; European Southern Observatory ; Danish Natural Science Research Council (FNU) ; Max Planck Institute for Astronomy (MPIA) ; Instituto de Astrofisica de Andalucia (CSIC) ; Italian Minister of Instruction, University and Research (MIUR) through FFABR ; University of Rome Tor Vergata through 'Mission: Sustainability ; National Natural Science Foundation of China[11503088] ; National Natural Science Foundation of China[11573073] ; National Natural Science Foundation of China[11573075] ; National Natural Science Foundation of China[D030201] ; Austrian Forschungsforderungsgesellschaft FFG project 'RASEN'[P847963] ; NYU Abu Dhabi Research Enhancement Fund[RE124] ; International Postdoctoral Fellow of Independent Research Fund Denmark - National Funds through FCT - Foundation for Science and Technology[UID/Multi/00611/2013] ; FEDER - European Regional Development Fund through COMPETE[POCI-01-0145-FEDER-006922] ; Danish Natural Science Research Council
WOS关键词	TRANSITING EXTRASOLAR PLANETS ; LIGHT CURVES ; HOT-JUPITER
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000474880400052
资助机构	Max Planck Gesellschaft ; European Southern Observatory ; Danish Natural Science Research Council (FNU) ; Max Planck Institute for Astronomy (MPIA) ; Instituto de Astrofisica de Andalucia (CSIC) ; Italian Minister of Instruction, University and Research (MIUR) through FFABR ; University of Rome Tor Vergata through 'Mission: Sustainability ; National Natural Science Foundation of China[11503088, 11573073, 11573075, D030201] ; Austrian Forschungsforderungsgesellschaft FFG project 'RASEN'[P847963] ; NYU Abu Dhabi Research Enhancement Fund[RE124] ; International Postdoctoral Fellow of Independent Research Fund Denmark - National Funds through FCT - Foundation for Science and Technology[UID/Multi/00611/2013] ; FEDER - European Regional Development Fund through COMPETE[POCI-01-0145-FEDER-006922] ; Danish Natural Science Research Council
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/20566]
专题	云南天文台_系外行星研究组
通讯作者	Mancini, L.
作者单位	1.Department of Physics, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Rome, Italy 2.Max Planck Institute for Astronomy, Konigstuhl 17, D-69117 Heidelberg, ¨ Germany 3.INAF – Osservatorio Astrofisico di Torino, via Osservatorio 20, I-10025 Pino Torinese, Italy 4.International Institute for Advanced Scientific Studies (IIASS), Via G. Pellegrino 19, I-84019 Vietri sul Mare (SA), Italy 5.Astrophysics Group, Keele University, Keele ST5 5BG, UK 6.Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands 7.Centro de Astronom´ıa (CITEVA), Universidad de Antofagasta, Avenida U. de Antofagasta, 02800 Antofagasta, Chile 8.Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz, Austria 9.Karl Franzens Univ Graz, Inst Geophys Astrophys & Meteorol, Univ Pl 5, A-8010 Graz, Austria 10.Institut fur Astro- und Teilchenphysik, Universit ¨ at Innsbruck, Techniker- ¨ strasse 25, A-6020 Innsbruck, Austria
推荐引用方式 GB/T 7714	Mancini, L.,Southworth, J.,Molliere, P.,et al. Physical properties and transmission spectrum of the WASP-74 planetary system from multiband photometry[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,485(4):5168-5179.
APA	Mancini, L..,Southworth, J..,Molliere, P..,Tregloan-Reed, J..,Juvan, I. G..,...&Wertz, O..(2019).Physical properties and transmission spectrum of the WASP-74 planetary system from multiband photometry.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,485(4),5168-5179.
MLA	Mancini, L.,et al."Physical properties and transmission spectrum of the WASP-74 planetary system from multiband photometry".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 485.4(2019):5168-5179.