High-precision photometry by telescope defocusing - V. WASP-15 and WASP-16

Autor: P. Browne, Jesper Skottfelt, N. Kains, Tobias C. Hinse, Gaetano Scarpetta, Luigi Mancini, S. Calchi Novati, Martin Dominik, F. Schönebeck, Khalid Al-Subai, Sohrab Rahvar, Jens Jessen-Hansen, M. Hundertmark, Sebastian Schafer, Jean Surdej, C. Liebig, Kailash C. Sahu, M. Mathiasen, Hans Kjeldsen, Stefan Dreizler, Shenghong Gu, Eamonn Kerins, Olivier Wertz, Nikolay Nikolov, M. Lundkvist, Valerio Bozza, John Southworth, S. Proft, Mikkel N. Lund, K. B. W. Harpsøe, U. G. Jørgensen, Th. Henning, Colin Snodgrass, X.-S. Fang, S. Hardis, François Finet, Davide Ricci, T. Gerner, Martin Burgdorf, Guo Chen, Peter N. Dodds, Matthew T. Penny, J. Tregloan-Reed
Přispěvatelé: Science & Technology Facilities Council, University of St Andrews. School of Physics and Astronomy
Jazyk: angličtina
Rok vydání: 2013
Předmět:
System
Stellar evolution database
individual: WASP-15 [stars]
individual: WASP-16 [stars]
Hot Jupiters
fundamental parameters [stars]
FOS: Physical sciences
Astrophysics
Ephemeris
01 natural sciences
law.invention
Transiting extrasolar planets
Telescope
Photometry (optics)
Settore FIS/05 - Astronomia e Astrofisica
law
Observatory
Planet
Models
0103 physical sciences
Hot Jupiter
QB Astronomy
010303 astronomy & astrophysics
planetary systems
Solar and Stellar Astrophysics (astro-ph.SR)
QB
Physics
Earth and Planetary Astrophysics (astro-ph.EP)
010308 nuclear & particles physics
Astronomy
Astronomy and Astrophysics
Planetary system
Eclipsing binaries
Physical-properties
Radius
Astrophysics - Solar and Stellar Astrophysics
Space and Planetary Science
Isochromes
Host stars
Astrophysics - Earth and Planetary Astrophysics
Zdroj: Southworth, J, Mancini, L, Browne, P, Burgdorf, M, Calchi Novati, S, Dominik, M, Gerner, T, Hinse, T C, Jørgensen, U G, Kains, N, Ricci, D, Schäfer, S, Schönebeck, F, Tregloan-Reed, J, Alsubai, K A, Bozza, V, Chen, G, Dodds, P, Dreizler, S, Fang, X-S, Finet, F, Gu, S-H, Hardis, S, Harpsøe, K, Henning, T, Hundertmark, M, Jessen-Hansen, J, Kerins, E, Kjeldsen, H, Liebig, C, Lund, M N, Lundkvist, M, Mathiasen, M, Nikolov, N, Penny, M T, Proft, S, Rahvar, S, Sahu, K, Scarpetta, G, Skottfelt, J, Snodgrass, C, Surdej, J & Wertz, O 2013, ' High-precision photometry by telescope defocusing-V. WASP-15 and WASP-16 ', Royal Astronomical Society. Monthly Notices, vol. 434, no. 2, pp. 1300-1308 . https://doi.org/10.1093/mnras/stt1089
Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stt1089
Popis: We present new photometric observations of WASP-15 and WASP-16, two transiting extrasolar planetary systems with measured orbital obliquities but without photometric follow-up since their discovery papers. Our new data for WASP-15 comprise observations of one transit simultaneously in four optical passbands using GROND on the MPG/ESO 2.2m telescope, plus coverage of half a transit from DFOSC on the Danish 1.54m telescope, both at ESO La Silla. For WASP-16 we present observations of four complete transits, all from the Danish telescope. We use these new data to refine the measured physical properties and orbital ephemerides of the two systems. Whilst our results are close to the originally-determined values for WASP-15, we find that the star and planet in the WASP-16 system are both larger and less massive than previously thought.
Accepted for publication in MNRAS; 9 pages, 7 tables, 6 figures. The light curves are available from http://www.astro.keele.ac.uk/jkt/data-teps.html and the results are included in TEPCat at http://www.astro.keele.ac.uk/jkt/tepcat/
Databáze: OpenAIRE