2014A&A...562A.126M

Query : 2014A&A...562A.126M

2014A&A...562A.126M - Astronomy and Astrophysics, volume 562A126-126 (2014/2-1)

Physical properties and transmission spectrum of the WASP-80 planetary system from multi-colour photometry.

MANCINI L., SOUTHWORTH J., CICERI S., DOMINIK M., HENNING T., JORGENSEN 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., HARPSOE 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. and WERTZ O.

Abstract (from CDS):

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 logR'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.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: fundamental parameters - stars: individual: WASP-80 - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/562/A126): eso_g.dat eso_r.dat eso_i.dat eso_z.dat eso_j.dat eso_h.dat eso_k.dat dk_i.dat>

Simbad objects: 13

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Number of rows : 13
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
2 NAME LP 424-4b Pl 07 59 05.8395356736 +15 23 29.236065000           ~ 387 1
3 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
4 LP 563-38 EB* 15 46 04.3030642435 +04 41 30.066220912           M5.1 45 1
5 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 845 1
6 G 205-57 ** 19 10 14.284032 +46 57 24.10632   14.93 13.38 13.01   dM3.5 72 0
7 CoRoT-2 * 19 27 06.4944378024 +01 23 01.359897468   13.422 12.568 12.204 11.49 G7V+K9V 267 2
8 Kepler-45b Pl 19 31 29.4966491088 +41 03 51.356401092           ~ 99 1
9 Kepler-45 Ro* 19 31 29.4966491088 +41 03 51.356401092     16.88 16.63   M1V 120 1
10 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 991 1
11 WASP-80 PM* 20 12 40.1693365800 -02 08 39.187438476   12.810 11.939 11.510 10.279 K7V-M0V 98 1
12 WASP-80b Pl 20 12 40.1693365800 -02 08 39.187438476           ~ 180 1
13 Qatar 1 PM* 20 13 31.6172746704 +65 09 43.492226796   13.90 12.84 12.65 11.71 ~ 71 1

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