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相关论文: Light curve solutions for bright detached eclipsin…

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Published measurements of distances to detached eclipsing binaries in the Large Magellanic Cloud combine stellar surface areas (in absolute units) determined from photometric light and radial velocity curves with surface brightnesses from…

天体物理学 · 物理学 2009-11-07 J. S. B. Wyithe , R. E. Wilson

Detached eclipsing binary stars provide a robust one-step distance determination to nearby galaxies. As a by-product of Galactic microlensing searches, catalogs of thousands of variable stars including eclipsing binaries have been produced…

天体物理学 · 物理学 2009-11-06 J. S. B. Wyithe , R. E. Wilson

We propose a procedure for light-curve solution of eclipsing binary stars in the Small Magellanic Cloud for which photometric data have been obtained in the framework of the OGLE project as well as way of determination of the global stellar…

太阳与恒星天体物理 · 物理学 2010-11-10 Valentin P. Ivanov , Diana P. Kjurkchieva , M. Srinivasa Rao

We present the first results of an observational programme to measure the fundamental parameters of over 100 eclipsing binaries in the Small Magellanic Cloud (SMC). The spectroscopic data were obtained by using the 2dF multi-object…

天体物理学 · 物理学 2009-11-07 Tim J. Harries , Ron W. Hilditch , Ian D. Howarth

We have conducted a programme to determine the fundamental parameters of a substantial number of eclipsing binaries of spectral types O and B in the Small Magellanic Cloud. New spectroscopic data, obtained with the two-degree-field…

天体物理学 · 物理学 2011-09-29 R. W. Hilditch , I. D. Howarth , T. J. Harries

We present a distance determination to the Small Magellanic Cloud (SMC) based on an analysis of four detached, long period, late type eclipsing binaries discovered by the OGLE Survey. The components of the binaries show negligible intrinsic…

We present a new study of late-type eclipsing binary stars in the Small Magellanic Cloud (SMC) undertaken with the aim of improving the distance determination to this important galaxy. A sample of 10 new detached, double-lined eclipsing…

To measure precise distances beyond the Magellanic Clouds and determine an accurate value of the Hubble constant, eclipsing binary systems composed of early-type stars can play a crucial role. However, it is fundamental to first obtain a…

太阳与恒星天体物理 · 物理学 2026-04-08 Mónica Taormina , G. Pietrzyński , B. Pilecki , R. -P. Kudritzki , D. Graczyk , J. Puls , M. Górski

Detached eclipsing binaries (DEBs) allow for the possibility of precise characterization of its stellar components. They offer a unique opportunity to derive their physical parameters in a near-model-independent way for a number of systems…

We search for systems hosting eclipsing discs using a complete sample of eclipsing binaries (EBs); those previously identified in the third phase of the Optical Gravitational Lensing Experiment (OGLE-III). Within a subsample of 2,823…

太阳与恒星天体物理 · 物理学 2015-07-29 Zeyang Meng , Alice C. Quillen , Cameron P. M. Bell , Eric E. Mamajek , Erin L. Scott , Ji-Lin Zhou

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,…

太阳与恒星天体物理 · 物理学 2014-12-03 P. Zasche , M. Wolf , J. Vrastil , J. Liska , M. Skarka , M. Zejda

We present a detailed V-band photometric light curve modeling of 30 eclipsing binaries using the data from Pietrukowicz et al. (2009) collected with the European Southern Observatory Very Large Telescope (ESO VLT) of diameter 8-m. The light…

The 222~000 I-band light curves of variable stars detected by the OGLE-II survey in the direction of the Galactic Bulge have been searched for eclipsing binaries (EBs). A previously developed code to analyze lightcurve shapes and identify…

天体物理学 · 物理学 2009-11-11 M. A. T. Groenewegen

Surface brightness -- colour relations (SBCRs) are very useful tools for predicting the angular diameters of stars. They offer the possibility to calculate very precise spectrophotometric distances by the eclipsing binary method or the…

The first 100 brightest eclipsing systems from the Small Magellanic Cloud were studied for their period changes. The photometric data from the surveys OGLE-II, OGLE-III, OGLE-IV and MACHO were combined with our new CCD observations obtained…

太阳与恒星天体物理 · 物理学 2019-02-27 P. Zasche , M. Wolf , J. Vrastil

The stellar mass-luminosity relation is poorly constrained by observations for high mass stars. We describe our program to find eclipsing massive binaries in the Magellanic Clouds using photometry of regions rich in massive stars, and our…

太阳与恒星天体物理 · 物理学 2015-06-03 Philip Massey , Nidia I. Morrell , Kathryn F. Neugent , Laura R. Penny , Kathleen-DeGioia Eastwood , Douglas R. Gies

Aim: Our purpose is to provide reliable stellar parameters for a significant sample of eclipsing binaries, which are representative of a whole dwarf and metal-poor galaxy. We also aim at providing a new estimate of the mean distance to the…

太阳与恒星天体物理 · 物理学 2015-05-19 P. L. North , R. Gauderon , F. Barblan , F. Royer

In the era of precision cosmology it is essential to determine the Hubble Constant with an accuracy of 3% or better. Currently, its uncertainty is dominated by the uncertainty in the distance to the Large Magellanic Cloud (LMC) which as the…

We present the first results of a project aiming to trace the spatial structure of the Milky Way using detached eclipsing binaries (DEBs) as distance indicators. A sample of DEBs from the OGLE-II catalogue was selected and their near…

星系天体物理 · 物理学 2015-06-15 K. G. Hełminiak , J. Devor , D. Minniti , P. Sybilski
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