Characterization of CoRoT Target Fields with the Berlin Exoplanet Search Telescope: Identification of Periodic Variable Stars in the LRa1 Field

Abstract

In this paper, we report on observations of the CoRoT LRa1 field with the Berlin Exoplanet Search Telescope (BEST). The current paper is part of a series of papers describing the results of our stellar variability survey. The BEST is a small aperture telescope with a wide field of view (FOV). It is dedicated to searching for stellar variability within the target fields of the CoRoT space mission to aid in minimizing false-alarm rates and identify potential targets for additional science. The LRa1 field is CoRoT's second long run field located in the galactic anticenter direction. We observed the LRa1 stellar field on 23 nights between November and March 2005/2006. From 6099 stars marked as variable, 39 were classified as periodic variable stars and 27 of them are within the CoRoT FOV. We also confirmed the variability for four stars listed in the General Catalogue of Variable Stars (GCVS).

References in corpus (10)

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• Transiting exoplanets from the CoRoT space mission I - CoRoT-Exo-1b: a low-density short-period planet around a G0V star
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• Multiperiodic Galactic field RR Lyrae stars in the ASAS catalog
• Prospects of long-time-series observations from Dome C for transit search
• Characterization of CoRoT target fields with BEST: Identification of periodic variable stars in the IR01 field
• Characterization of CoRoT Target Fields with the Berlin Exoplanet Search Telescope: Identification of Periodic Variable Stars in the LRa1 Field
• Identification of Variable Stars in COROT's First Main Observing Field (LRc1)

Cited by in corpus (14)

• Ground-based photometry of space-based transit detections: Photometric follow-up of the CoRoT mission
• Pre-discovery observations of CoRoT-1b and CoRoT-2b with the BEST survey
• Planetary transit candidates in the CoRoT LRa01 field
• Periodic variable stars in CoRoT field LRa02 observed with BEST II
• Transit Search from Antarctica and Chile - Comparison and Combination
• CoRoT space photometry of seven Cepheids
• Characterization of CoRoT Target Fields with the Berlin Exoplanet Search Telescope: Identification of Periodic Variable Stars in the LRa1 Field
• Improved Variable Star Search in Large Photometric Data Sets -- New Variables in CoRoT Field LRa02 Detected by BEST II
• Variability survey in the CoRoT SRa01 field: Implications of eclipsing binary distribution on cluster formation in NGC 2264
• Characterization of CoRoT target fields with BEST: Identification of periodic variable stars in the LRa1 field
• A Variable Star Census in a Perseus Field
• The Berlin Exoplanet Search Telescope II. Catalog of Variable Stars. I. Characterization of Three Southern Target Fields
• The Berlin Exoplanet Search Telescope II Catalog of Variable Stars. II. Characterization of the CoRoT SRc02 field
• Multi-object spectroscopy of stars in the CoRoT fields II: The stellar population of the CoRoT fields IRa01, LRa01, LRa02, and LRa06