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High-precision photometry by telescope defocusing - VII. The ultrashort period planet WASP-103

Southworth, John; Mancini, L; Ciceri, S; Budaj, Jan; Dominik, M; Figuera Jaimes, R; Haugbolle, T; Jorgensen, U. G; Popovas, A; Rabus, M; Rahvar, S; von Essen, C; Schmidt, R. W; Wertz, O; Alsubai, K. A; Bozza, V; Bramich, D. M; Calchi Novati, S; D'Ago, G; Hinse, T. C; Henning, T; Hundertmark, M; Juncher, D; Korhonen, H; Skottfelt, J; Snodgrass, C; Starkey, D; Surdej, J


We present 17 transit light curves of the ultrashort period planetary system WASP-103, a strong candidate for the detection of tidally-induced orbital decay. We use these to establish a high-precision reference epoch for transit timing studies. The time of the reference transit mid-point is now measured to an accuracy of 4.8 s, versus 67.4 s in the discovery paper, aiding future searches for orbital decay. With the help of published spectroscopic measurements and theoretical stellar models, we...[Show more]

CollectionsANU Research Publications
Date published: 2014-12-18
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu2394


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