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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 693648.0, MPI für Astronomie / Publikationen_mpia
A hot Jupiter transiting a mid-K dwarf found in the pre-OmegaCam Transit Survey
Authors:Koppenhoefer, J.; Saglia, R. P.; Fossati, L.; Lyubchik, Y.; Mugrauer, M.; Bender, R.; Lee, C.-H.; Riffeser, A.; Afonso, P.; Greiner, J.; Henning, Th.; Neuhäuser, R.; Snellen, I. A. G.; Pavlenko, Y.; Verdugo, M.; Vogt, N.
Language:English
Date of Publication (YYYY-MM-DD):2013
Title of Journal:Monthly Notices of the Royal Astronomical Society
Volume:435
Issue / Number:4
Start Page:3133
End Page:3147
Review Status:Internal review
Audience:Experts Only
Abstract / Description:We describe the pre-OmegaTranS project, a deep survey for transiting extra-solar planets in the Carina region of the Galactic disc. In 2006-2008, we observed a single dense stellar field with a very high cadence of ˜2 min using the European Southern Observatory Wide Field Imager at the La Silla Observatory. Using the Astronomical Wide-field Imaging System for Europe environment and the Munich Difference Imaging Analysis pipeline, a module that has been developed for this project, we created the light curves of 16 000 stars with more than 4000 data points which we searched for periodic transit signals using a box-fitting least-squares detection algorithm. All light curves are publicly available. In the course of the pre-OmegaTranS project, we identified two planet candidates - POTS-1b and POTS-C2b - which we present in this work. With extensive follow-up observations we were able to confirm one of them, POTS-1b, a hot Jupiter transiting a mid-K dwarf. The planet has a mass of 2.31 ± 0.77 MJup, a radius of 0.94 ± 0.04 RJup and a period of P = 3.16 d. The host star POTS-1 has a radius of 0.59 ± 0.02 R and a mass of 0.70 ± 0.05 M. Due to its low apparent brightness of I = 16.1 mag, the follow-up and confirmation of POTS-1b was particularly challenging and costly.
Free Keywords:planetary systems
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0035-8711 [ID No:1]
URL:http://cdsads.u-strasbg.fr/abs/2013MNRAS.435.3133K [ID No:2]
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