2014MNRAS.437.1511B

Query : 2014MNRAS.437.1511B

2014MNRAS.437.1511B - Mon. Not. R. Astron. Soc., 437, 1511-1518 (2014/January-2)

Optical transmission photometry of the highly inflated exoplanet WASP-17b.

BENTO J., WHEATLEY P.J., COPPERWHEAT C.M., FORTNEY J.J., DHILLON V.S., HICKMAN R., LITTLEFAIR S.P., MARSH T.R., PARSONS S.G. and SOUTHWORTH J.

Abstract (from CDS):

We present ground-based high-precision observations of the transit of WASP-17b using the multiband photometer ULTRACAM on ESO's New Technology Telescope (NTT) in the context of performing transmission spectrophotometry of this highly inflated exoplanet. Our choice of filters (SDSS u', g' and r' bands) is designed to probe for the presence of opacity sources in the upper atmosphere. We find evidence for a wavelength dependence in the planet radius in the form of enhanced absorption in the SDSS r' band, consistent with a previously detected broad sodium feature. We present a new independent measurement of the planetary radius at Rpl = 1.97±0.06RJ, which confirms this planet as the most inflated exoplanet known to date. Our measurements are most consistent with an atmospheric profile devoid of enhanced TiO opacity, previously predicted to be present for this planet.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): stars: individual: WASP-17 - stars: planetary systems

Simbad objects: 11

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Number of rows : 11
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 HAT-P-32b Pl 02 04 10.2774374568 +46 41 16.212315084           ~ 198 1
2 CD-31 10766b Pl 13 55 42.7120177608 -32 09 34.616222028           ~ 84 1
3 UCAC3 124-185767 * 15 59 33.2959476720 -28 03 23.327607960       13.10   ~ 1 0
4 IRAS 15564-2755 LP* 15 59 34.5471999696 -28 03 33.329826540       13.81   ~ 3 0
5 UCAC3 124-185780 * 15 59 35.4292779408 -28 02 38.465508876       12.62   ~ 1 0
6 CD-27 10695b Pl 15 59 50.9491505016 -28 03 42.312819096           ~ 313 1
7 CD-27 10695 * 15 59 50.9491505016 -28 03 42.312819096   11.83 11.59 11.31 10.92 F4 141 1
8 UCAC3 124-185913 * 15 59 53.5617938472 -28 04 55.448373972       13.70   ~ 1 0
9 TOI-2124b Pl 17 53 13.0489562760 +37 12 42.586493328           ~ 228 2
10 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
11 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1

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