Document Type
Article
Publication Date
4-2014
Department 1
Physics
Abstract
We present the results of 45 transit observations obtained for the transiting exoplanet HATP- 32b. The transits have been observed using several telescopes mainly throughout the YETI (Young Exoplanet Transit Initiative) network. In 25 cases, complete transit light curves with a timing precision better than 1.4 min have been obtained. These light curves have been used to refine the system properties, namely inclination i, planet-to-star radius ratio Rp/Rs, and the ratio between the semimajor axis and the stellar radius a/Rs. First analyses by Hartman et al. suggests the existence of a second planet in the system, thus we tried to find an additional body using the transit timing variation (TTV) technique. Taking also the literature data points into account, we can explain all mid-transit times by refining the linear ephemeris by 21 ms. Thus, we can exclude TTV amplitudes of more than ∼1.5min.
Copyright Note
This is the publisher's version of the work. This publication appears in Gettysburg College's institutional repository by permission of the copyright owner for personal use, not for redistribution.
DOI
10.1093/mnras/stu567
Recommended Citation
Seeliger, M., et al. "Transit Timing Analysis in the HAT-P-32 System." Monthly Notices of the Royal Astronomical Society 441.1 (April 2014), 304-315.
Required Publisher's Statement
Original version is available from the publisher at: http://mnras.oxfordjournals.org/content/441/1/304