Transit analysis of the CoRoT-5, CoRoT-8, CoRoT-12, CoRoT-18, CoRoT-20, and CoRoT-27 systems with combined ground- and space-based photometry

DOI: 
10.1093/mnras/sty3085
Publication date: 
01/02/2019
Main author: 
Raetz, St
IAA authors: 
Fernández, M.;Casanova, V.
Authors: 
Raetz, St;Heras, A. M.;Fernández, M.;Casanova, V.;Marka, C.
Journal: 
Monthly Notices of the Royal Astronomical Society
Refereed: 
Yes
Publication type: 
Article
Volume: 
483
Pages: 
824-839
Abstract: 
We have initiated a dedicated project to follow-up with ground-based photometry the transiting planets discovered by CoRoT in order to refine the orbital elements, constrain their physical parameters, and search for additional bodies in the system. From 2012 September to 2016 December we carried out 16 transit observations of six CoRoT planets (CoRoT-5 b, CoRoT-8 b, CoRoT-12 b, CoRoT-18 b, CoRoT-20 b, and CoRoT-27 b) at three observatories located in Germany and Spain. These observations took place between 5 and 9 yr after the planet's discovery, which has allowed us to place stringent constraints on the planetary ephemeris. In five cases we obtained light curves with a deviation of the mid-transit time of up to ̃115 min from the predictions. We refined the ephemeris in all these cases and reduced the uncertainties of the orbital periods by factors between 1.2 and 33. In most cases our determined physical properties for individual systems are in agreement with values reported in previous studies. In one case, CoRoT-27 b, we could not detect any transit event in the predicted transit window.
Database: 
ADS
SCOPUS
URL: 
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068893903&doi=10.1093%2fmnras%2fsty3085&partnerID=40&md5=64c8c1a9838252a06b3c93fbd4b521b5
ADS Bibcode: 
2019MNRAS.483..824R
Keywords: 
planets and satellites: individual: CoRoT-5 b;CoRoT-8 b;CoRoT-12 b;CoRoT-18 b;CoRoT-20 b;and CoRoT-27 b;planetary systems;stars: individual: CoRoT-5;CoRoT-8;CoRoT-12;CoRoT-18;CoRoT-20;and CoRoT-27;Astrophysics - Earth and Planetary Astrophysics