Identification of Variable Stars in<i>COROT</i>'s First Main Observing Field (LRc1)

Karoff, C.; Rauer, H.; Erikson, A.; Voss, H.; Kabáth, P.; Wiese, T.; Deleuil, M.; Moutou, C.; Meunier, J.-C.; Deeg, H. J.

doi:10.1086/519524

Cited by 24 publications

(32 citation statements)

References 17 publications

(32 reference statements)

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“…The scientific task of the detection teams is to provide a characterized set of planetary transiting candidates; although as a natural by-product they build a list of identified eclipsing binaries which is provided here. Some of the binaries (such as E1_1922, E2_0170, E2_1450, E2_3052, E1_1262, and E2_0169) have already been observed by Karoff et al (2007) within the Berlin Exoplanet Search Telescope (BEST) survey of variable stars in the CoRoT fields. Among the binaries in the list, the following are clearly eccentric: E1_1273, E1_1352, E1_1422, E1_2978, E1_3418, E1_3671, E1_4583, E1_5097, E1_5173, E2_0258, E2_0667, E2_1661, E2_1954, E2_2257, E2_2631, E2_2871, E2_3956, E2_3995, E2_5245.…”

Section: Resultsmentioning

confidence: 99%

Planetary transit candidates in CoRoT-LRc01 field

Cabrera

Fridlund

Ollivier

et al. 2009

A&A

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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 tools, on which subsequently several transit search algorithms were applied. Results. Forty two sources were classified as planetary transit candidates and up to now 26 cases have been solved. One planet (CoRoT-2b) and one brown-dwarf (CoRoT-3b) have been the subjects of detailed publications.

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Section: Resultsmentioning

confidence: 99%

Planetary transit candidates in CoRoT-LRc01 field

Cabrera

Fridlund

Ollivier

et al. 2009

A&A

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“…project (Kabath et al 2007;Karoff et al 2007;Kabath et al 2008Kabath et al , 2009bKabath et al , 2009aRauer et al 2010).…”

Section: Reduction Pipelinementioning

confidence: 99%

A Variable Star Census in a Perseus Field

Pasternacki¹,

Csizmadia²,

Cabrera³

et al. 2011

The Astronomical Journal

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The Berlin Exoplanet Search Telescope is a small-aperture, wide-field telescope dedicated to time-series photometric observations. During an initial commissioning phase at the Thüringer Landessternwarte Tautenburg, Germany, and subsequent operations at the Observatoire de Haute-Provence, France, a 10 deg 2 circumpolar field close to the galactic plane centered at (α, δ) = (02 h 39 m 23 s , +52 • 01 46 ) (J 2000.0) was observed between 2001 August and 2006 December during 52 nights. From the 32129 stars observed, a subsample of 145 stars with clear stellar variability was detected out of which 125 are newly identified variable objects. For five bright objects, the system parameters were derived by modeling the light curve.

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“…Deeg et al 2000;Martín et al 2001;Zapatero Osorio et al 2004;Steinfadt et al 2008;Deeg et al 2008;Rabus et al 2009), a module that derives observed on-off brightness differences has been added for the CoRoT follow-up. Furthermore, it includes a calculation of the contamination factors k c from a simulated CoRoT (Kabath et al 2007;Karoff et al 2007;Kabath et al 2008Kabath et al , 2009bKabath et al 2009a;Rauer et al 2009) which are routinely checked against the detections from CoRoT. They will also be used for future surveying of CoRoT-short run fields.…”

Section: "Vaphot/vanaliz" a Timeseries Photometry Package With An Anmentioning

confidence: 99%

Ground-based photometry of space-based transit detections: photometric follow-up of the CoRoT mission

Deeg¹,

Gillon

Shporer

et al. 2009

A&A

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The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d'être arises from the much higher spatial resolution of common ground-based telescopes in comparison to CoRoT's cameras. This allows the identification of many transit candidates as arising from eclipsing binaries that are contaminating CoRoT's lightcurves, even in low-amplitude transit events that cannot be detected with ground-based obervations. For the ground observations, "on" -"off" photometry is now largely employed, in which only a short timeseries during a transit and a section outside a transit is observed and compared photometrically. CoRoTplanet candidates' transits are being observed by a dedicated team with access to telescopes with sizes ranging from 0.2 to 2 m. As an example, the process that led to the rejection of contaminating eclipsing binaries near the host star of the Super-Earth planet CoRoT-7b is shown. Experiences and techniques from this work may also be useful for other transit-detection experiments, when the discovery instrument obtains data with a relatively low angular resolution.

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Identification of Variable Stars inCOROT's First Main Observing Field (LRc1)

Cited by 24 publications

References 17 publications

Planetary transit candidates in CoRoT-LRc01 field

Planetary transit candidates in CoRoT-LRc01 field

A Variable Star Census in a Perseus Field

Ground-based photometry of space-based transit detections: photometric follow-up of the CoRoT mission

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