Analysis of a detached eclipsing binary at near the turnoff point of the open cluster NGC 6791 in Kepler field

Hoyman, Barış; Özdarcan, O.; Dervişoğlu, Ahmet; Yontan, Talar; Çakırlı, Ö.

doi:10.1016/j.newast.2018.10.004

Cited by 8 publications

(2 citation statements)

References 43 publications

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“…In NGC 6791, Grundahl et al (2008) used ground-based data to study the detached eclipsing binary KIC 2437452, providing cluster age and distance measurements. Brogaard et al (2011) introduced three new EB models in the cluster, which they used to calibrate age and He abundance measurements; of these stars, Hoyman et al (2019) went on to model the EB KIC 2438061 using Kepler data, proving a distance estimate to the cluster, though their mass estimates differ from Brogaard et al (2011). NGC 6819 has proved host to a greater number of binaries than expected, as shown in the preliminary studies for this data release (Colman 2020), which we will discuss in greater detail in Section 3.3.…”

Section: Introductionmentioning

confidence: 99%

The Kepler IRIS Catalog: Image subtraction light curves for 9,150 stars in and around the open clusters NGC 6791 and NGC 6819

Colman,

Bedding,

Huber

et al. 2021

Preprint

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The four-year Kepler mission collected long cadence images of the open clusters NGC 6791 and NGC 6819, known as "superstamps." Each superstamp region is a 200-pixel square that captures thousands of cluster members, plus foreground and background stars, of which only the brightest were targeted for long or short cadence photometry during the Kepler mission. Using image subtraction photometry, we have produced light curves for every object in the Kepler Input Catalog that falls on the superstamps. The IRIS catalog includes light curves for 9,150 stars, and contains a wealth of new data: 8,427 of these stars were not targeted at all by Kepler, and we have increased the number of available quarters of long cadence data for 382 stars. The catalog is available as a high-level science product on MAST, with both raw photometric data for each quarter and corrected light curves for all available quarters for each star. We also present an introduction to our implementation of image subtraction photometry and the open source IRIS pipeline, alongside an overview of the data products, systematics, and catalog statistics.

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Section: Introductionmentioning

confidence: 99%

The Kepler IRIS Catalog: Image subtraction light curves for 9,150 stars in and around the open clusters NGC 6791 and NGC 6819

Colman,

Bedding,

Huber

et al. 2021

Preprint

View full text Add to dashboard Cite

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“…These types of tests can be done when such systems are cluster members (e.g. Meibom et al 2009;Brogaard et al 2011;Sandquist et al 2013;Brewer et al 2016;Hoyman et al 2019). Therefore, many researchers investigated it to obtain main astrophysical parameters (e.g.…”

Section: Introductionmentioning

confidence: 99%

Kepler Binary Stars in NGC 6819 Open Cluster: KIC 5113146 and KIC 5111815

Soydugan,

Alicavus,

Soydugan

et al. 2020

Preprint

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In this study, investigation of two double-lined binary stars KIC 5113146 and KIC 5111815 in NGC 6819 open cluster is presented based on both photometric and spectroscopic data. Simultaneous analysis of light and radial velocity curves was made and the absolute parameters of the systems' components were determined for the first time. We find that both systems have F-type main-sequence components. The masses and radii were found to be M 1 =1.29±0.02M , R 1 =1.47±0.03 R and M 2 =1.19±0.02 M , R 2 =1.13±0.02 R for the primary and secondary components of KIC 5113146;the components of KIC 5111815, respectively. Evolutionary status of the components was evaluated based on the MESA evolutionary tracks and isochrones. The ages of the

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Eclipsing binaries in the OGLE variable star catalogue: long-period evolved systems

Hoyman

Bulut

Özdarcan

et al. 2020

Monthly Notices of the Royal Astronomical Society

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Red giant stars are proving to be an exceptional source of information for testing models of stellar evolution, as photometric and spectroscopic analysis has opened up a window into their interiors, providing an exciting chance to develop highly constrained stellar models. In this study, we present a determination of precise fundamental physical parameters belonging to five detached, double-lined, eclipsing binary stars in the Large and Small Magellanic Clouds containing G- or early K-type giant stars with extended envelopes. We also derived the distances to the systems by using a temperature–colour relation and compared these distances with the measurements provided in the literature. The measured stellar masses are in the range 1.8–3.0 M⊙ and comparison with the PAdova and TRieste Stellar Evolution Code (PARSEC) isochrones gives ages between 0.4 and 1.1 Gyr. The derived uncertainties for individual masses and radii of components are better than 3 and 7 per cent, respectively, for these systems. Additionally, we performed atmospheric parameter determination and [M/H] analysis for each, where we disentangled the spectra.

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Analysis of a detached eclipsing binary at near the turnoff point of the open cluster NGC 6791 in Kepler field

Cited by 8 publications

References 43 publications

The Kepler IRIS Catalog: Image subtraction light curves for 9,150 stars in and around the open clusters NGC 6791 and NGC 6819

The Kepler IRIS Catalog: Image subtraction light curves for 9,150 stars in and around the open clusters NGC 6791 and NGC 6819

Kepler Binary Stars in NGC 6819 Open Cluster: KIC 5113146 and KIC 5111815

Eclipsing binaries in the OGLE variable star catalogue: long-period evolved systems

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