2016MNRAS.463.2922K


Query : 2016MNRAS.463.2922K

2016MNRAS.463.2922K - Mon. Not. R. Astron. Soc., 463, 2922-2931 (2016/December-2)

Transmission spectroscopy of the inflated exoplanet WASP-52b, and evidence for a bright region on the stellar surface.

KIRK J., WHEATLEY P.J., LOUDEN T., LITTLEFAIR S.P., COPPERWHEAT C.M., ARMSTRONG D.J., MARSH T.R. and DHILLON V.S.

Abstract (from CDS):

We have measured the transmission spectrum of the extremely inflated hot Jupiter WASP-52b using simultaneous photometric observations in Sloan Digital Sky Survey u', g' and a filter centred on the sodium doublet (Na I) with the ULTRACAM instrument mounted on the 4.2-m William Herschel Telescope. We find that Rayleigh scattering is not the dominant source of opacity within the planetary atmosphere and find a transmission spectrum more consistent with wavelength-independent opacity such as from clouds. We detect an in-transit anomaly that we attribute to the presence of stellar activity and find that this feature can be more simply modelled as a bright region on the stellar surface akin to solar faculae rather than spots. A spot model requires a significantly larger planet/star radius ratio than that found in previous studies. Our results highlight the precision that can be achieved by ground-based photometry with errors in the scaled planetary radii of less than one atmospheric scale height, comparable to Hubble Space Telescope observations.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: individual: WASP-52 - planetary systems - starspots - starspots

Simbad objects: 21

goto Full paper

goto View the references in ADS

Number of rows : 21
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HAT-P-19b Pl 00 38 04.0136161838 +34 42 41.552260901           ~ 54 1
2 HAT-P-32b Pl 02 04 10.2775457769 +46 41 16.210382751           ~ 119 1
3 WASP-12b Pl 06 30 32.7966788910 +29 40 20.266334158           G0 682 1
4 WASP-19b Pl 09 53 40.0764883458 -45 39 33.055979403           ~ 329 1
5 WASP-31b Pl 11 17 45.3578468391 -19 03 17.216528280           ~ 111 1
6 HATS-2b Pl 11 46 57.3702861837 -22 33 46.816907262           ~ 19 1
7 HAT-P-36b Pl 12 33 03.9061289086 +44 54 55.197073712           ~ 30 1
8 Qatar 2b Pl 13 50 37.4100427817 -06 48 14.419877691           ~ 36 1
9 WASP-39b Pl 14 29 18.4151765921 -03 26 40.203046112           ~ 127 1
10 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 321 1
11 Kepler-63b Pl 19 16 54.2861871448 +49 32 53.450828682           ~ 57 1
12 CoRoT-2b Pl 19 27 06.4944821296 +01 23 01.357597206           ~ 216 1
13 BD+47 2936b Pl 19 50 50.2474562793 +48 04 51.097364378           ~ 361 1
14 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1291 1
15 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1707 1
16 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 225 1
17 WASP-52b Pl 23 13 58.7575814237 +08 45 40.571306719           ~ 82 1
18 WASP-52 * 23 13 58.7576098848 +08 45 40.572305352   12.9 12.0 12.03   K2V 66 1
19 BD+08 5023 * 23 14 12.0424314936 +08 50 56.225179500   11.51 10.71     K0 2 0
20 WASP-4b Pl 23 34 15.0857248317 -42 03 41.047972591           ~ 150 1
21 CD-40 15273b Pl 23 51 31.0840161955 -39 54 24.259966546           ~ 64 1

To bookmark this query, right click on this link: simbad:objects in 2016MNRAS.463.2922K and select 'bookmark this link' or equivalent in the popup menu


2022.10.03-00:32:38

© Université de Strasbourg/CNRS

    • Contact