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Related papers: Distance to the SMC from eclipsing binaries

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We report on the discovery and analysis of short-period (0.1 days $< P <$ 5 days), photometrically varying binary stars around and below the main-sequence turnoff of the globular clusters (GCs) NGC 3201, M10, & M12. These eclipsing binaries…

Astrophysics · Physics 2009-11-07 Kaspar von Braun

The two objects 1SWASP J150822.80-054236.9 and 1SWASP J160156.04+202821.6 were initially detected from their SuperWASP archived light curves as candidate eclipsing binaries with periods close to the short-period cut-off of the orbital…

Solar and Stellar Astrophysics · Physics 2014-03-07 M. E. Lohr , S. T. Hodgkin , A. J. Norton , U. C. Kolb

Using new and published photometric observations of mu1 Sco (HR 6247), spanning 70 years, a period of 1.4462700(5) days was determined. It was found that the epoch of primary minimum suggested by Shobbrook at HJD 2449534.178 requires an…

Solar and Stellar Astrophysics · Physics 2015-05-14 C. van Antwerpen , T. Moon

We present an extensive set of photometry and radial velocities for the detached eclipsing binary KV 29 in the intermediate-aged open cluster M11 (NGC 6705). Spectroscopy shows that the system is double-lined and all available evidence…

Solar and Stellar Astrophysics · Physics 2016-08-19 Ernest A. Bavarsad , Eric L. Sandquist , Matthew D. Shetrone , Jerome A. Orosz

We present the results from a complex study of an eclipsing O-type binary (Aa+Ab) with the orbital period $P_{A}=3.2254367$ days, that forms part of a higher-order multiple system in a configuration (A+B)+C. We derived masses of the Aa+Ab…

Solar and Stellar Astrophysics · Physics 2024-04-05 Mónica Taormina , R. -P. Kudritzki , B. Pilecki , G. Pietrzyński , I. B. Thompson , J. Puls , M. Górski , B. Zgirski , D. Graczyk , W. Gieren , G. Hajdu

We present new version of the OGLE-II catalog of eclipsing binary stars detected in the Small Magellanic Cloud, based on Difference Image Analysis catalog of variable stars in the Magellanic Clouds containing data collected from 1997 to…

Using the OGLE catalogue of eclipsing binaries, 15 contact binaries were identified towards the SMC and the LMC at vertical distances from the Galactic plane between 300 pc and 10 kpc. Based on the luminosity function calculated for these…

Astrophysics · Physics 2009-11-13 Pascal D. Nef , Slavek M. Rucinski

The discovery of an Algol type eclipsing variable star having highly elliptical orbit with the period of 11.628 day is reported.

Astrophysics · Physics 2007-05-23 V. P. Goranskij , S. Yu. Shugarov , P. Kroll , A. Golovin

I present results from an optical spectroscopic investigation of the binary system HD 42401 (V1388 Ori; B2.5 IV-V + B3 V). A combined analysis of V-band photometry and radial velocities indicates that the system has an orbital period of…

Astrophysics · Physics 2014-11-18 S. J. Williams

NGC346-013 is a peculiar double-lined eclipsing binary in the Small Magellanic Cloud discovered by the VLT-FLAMES survey of massive stars. Spectra obtained with VLT-FLAMES are used to construct a radial velocity curve and photometry…

Solar and Stellar Astrophysics · Physics 2015-06-03 B. W. Ritchie , V. E. Stroud , C. J. Evans , J. S. Clark , I. Hunter , D. J. Lennon , N. Langer , S. J. Smartt

This is a catalogue of approximately 70 X-ray emitting binary systems in the Small Magellanic Cloud (SMC) that contain a Be star as the mass donor in the system and a clear X-ray pulse signature from a neutron star. The systems are…

High Energy Astrophysical Phenomena · Physics 2015-08-06 M. J. Coe , J. Kirk

NSVS 14256825 is the second sdOB + dM eclipsing binary systems with an orbital period of 2.65 hours. The special binary was reported to contain circumbinary planets or brown dwarfs by using the timing method. However, different results were…

Solar and Stellar Astrophysics · Physics 2020-04-01 Zhu L. -Y. , Qian S. -B. , Fernandez Lajus , E. , Wang Z. -H. , Li L. -J

We present time-resolved spectroscopy and photometry of SDSS J100658.40+233724.4, which we have discovered to be an eclipsing cataclysmic variable with an orbital period of 0.18591324 days (267.71507 min). The observed velocity amplitude of…

Solar and Stellar Astrophysics · Physics 2015-05-14 John Southworth , R. D. G. Hickman , T. R. Marsh , A. Rebassa-Mansergas , B. T. Gansicke , C. M. Copperwheat , P. Rodriguez-Gil

We present the collection of eclipsing binaries in the Large and Small Magellanic Clouds, based on the OGLE survey. It contains 48605 systems, 40204 belonging to the LMC and 8401 to the SMC. Out of the total number of the presented…

Aims: The Danish 1.54-meter telescope at the La Silla observatory was used for photometric monitoring of selected eccentric eclipsing binaries located in the Small Magellanic Cloud. The new times of minima were derived for these systems,…

Solar and Stellar Astrophysics · Physics 2014-12-03 P. Zasche , M. Wolf , J. Vrastil , J. Liska , M. Skarka , M. Zejda

We report the detection of eclipses in GJ 3236, a bright (I = 11.6) very low mass binary system with an orbital period of 0.77 days. Analysis of light- and radial velocity curves of the system yielded component masses of 0.38 +/- 0.02 and…

Eclipsing binaries offer a unique opportunity to determine fundamental physical parameters of stars using the constraints on the geometry of the systems. Here we present a reanalysis of publicly available two-color observations of about…

Astrophysics · Physics 2009-03-09 A. Derekas , L. L. Kiss , T. R. Bedding

We report the discovery of a rare close binary system, SMSS J160639.78-100010.7, comprised of a magnetic white dwarf with a field of about 30 MG and a brown dwarf. We measured an orbital period of 92 min which is consistent with the…

Solar and Stellar Astrophysics · Physics 2021-07-29 Adela Kawka , Stephane Vennes , Lilia Ferrario , M. S. Bessell , S. C. Keller , E. Paunzen , D. A. H. Buckley , D. Groenewald , J. Janik , M. Zejda

We report the discovery of eclipses and the first orbital period measurements for four cataclysmic variables, plus the first orbital period measurements for one known eclipsing and two magnetic systems. SDSS J093537.46+161950.8 exhibits…

Solar and Stellar Astrophysics · Physics 2015-06-23 John Southworth , C. Tappert , B. T. Gaensicke , C. M. Copperwheat

From optical photometry we show that SDSSJ121258.25-012310.1 is a new eclipsing, post common-envelope binary with an orbital period of 8.06 hours and an eclipse length of 23 minutes. We observed the object over 11 nights in different bands…

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