Characterisation of extrasolar planetary transit candidates
نویسندگان
چکیده
منابع مشابه
About putative Neptune-like extrasolar planetary candidates
Context. We re-analyze the precision radial velocity (RV) data of HD 208487, HD 190360, HD 188015 and HD 114729. These stars are supposed to host Jovian companions in long-period orbits. Aims. We test a hypothesis that the residuals of the 1-planet model of the RV or an irregular scatter of the measurements about the synthetic RV curve may be explained by the existence of additional planets in ...
متن کاملAtmospheric Lensing and Oblateness Effects during an Extrasolar Planetary Transit
Future high-precision photometric measurements of transiting extrasolar planets promise to tell us much about the characteristics of these systems. We examine how atmospheric lensing and (projected) planet oblateness/ellipticity modify transit light curves. The large density gradients expected in planet atmospheres can offset the unfavorably large observer lens–to–source lens distance ratio and...
متن کاملDoppler follow - up of OGLE planetary transit candidates in Carina ⋆
We present the results of our high-resolution spectroscopic follow-up of 42 planetary transit candidates in Carina from the OGLE survey. This follow-up has already allowed the discovery of three new transiting exoplanets, OGLE-TR-111, 113 and 132, presented in earlier Letters (Bouchy et al. 2004; Pont et al. 2004). Here we analyse the data for the remaining 39 candidates. The radial velocity da...
متن کاملSpecial feature Planetary transit candidates in CoRoT-LRc01 field
Aims. We present here the list of planetary transit candidates detected in the first long run observed by CoRoT: LRc01, towards the galactic center in the direction of Aquila, which lasted from May to October 2007. Methods. we analyzed 3719 (33%) sources in the chromatic bands and 7689 in the monochromatic band. Instrumental noise and the stellar variability were treated with several detrending...
متن کاملEllipsoidal Variability in the OGLE Planetary Transit Candidates
We analyze the photometry of 121 OGLE stars with periodic transit events for the presence of ellipsoidal light variations, which indicate the presence of massive companions. We find that over 50% of objects may have stellar companions , mostly among the short period systems. In our Table 1 stars with no measurable ellipsoidal variability are marked as the prime candidates for planetary searches...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2010
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/200913781