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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 710142.0, MPI für Astronomie / Publikationen_mpia
Physical properties and transmission spectrum of the WASP-80 planetary system from multi-colour photometry
Authors:Mancini, L.; Southworth, J.; Ciceri, S.; Dominik, M.; Henning, T.; Jørgensen, U. G.; Lanza, A. F.; Rabus, M.; Snodgrass, C.; Vilela, C.; Alsubai, K. A.; Bozza, V.; Bramich, D. M.; Calchi Novati, S.; D'Ago, G.; Figuera Jaimes, R.; Galianni, P.; Gu, S. -. H.; Harpsøe, K.; Hinse, T.; Hundertmark, M.; Juncher, D.; Kains, N.; Korhonen, H.; Popovas, A.; Rahvar, S.; Skottfelt, J.; Street, R.; Surdej, J.; Tsapras, Y.; Wang, X. -. B.; Wertz, O.
Date of Publication (YYYY-MM-DD):2014
Title of Journal:Astronomy and Astrophysics
Volume:562
Start Page:id. A126 (9 pp)
Audience:Not Specified
Abstract / Description:WASP-80 is one of only two systems known to contain a hot Jupiter which transits its M-dwarf host star. We present eight light curves of one transit event, obtained simultaneously using two defocussed telescopes. These data were taken through the Bessell I, Sloan g'r'i'z' and near-infrared JHK passbands. We use our data to search for opacity-induced changes in the planetary radius, but find that all values agree with each other. Our data are therefore consistent with a flat transmission spectrum to within the observational uncertainties. We also measure an activity index of the host star of log R 'HK = -4.495, meaning that WASP-80 A shows strong chromospheric activity. The non-detection of starspots implies that, if they exist, they must be small and symmetrically distributed on the stellar surface. We model all available optical transit light curves and obtain improved physical properties and orbital ephemerides for the system. Full Table 2 is only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr">http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/562/A126">http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/562/A126</A>
Free Keywords:planetary systems; stars: fundamental parameters; stars: individual:; WASP-80; techniques: photometric
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0004-6361 %R 10.1051/0004-6361/201323265
URL:http://cdsads.u-strasbg.fr/abs/2014A%26A...562A.12...
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