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相关论文: The OGLE Collection of Variable Stars. Over 75 000…

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We present a complete set of physical parameters for three early-type eclipsing binary systems in the Large Magellanic Cloud (LMC): OGLE LMC-ECL-17660, OGLE LMC-ECL-18794, and HV 2274, together with the orbital solutions. The first and…

This paper is the first part of the Catalog of Periodic Variable Stars in the Galactic bulge. The Catalog is based on observations collected during the OGLE microlensing search. 213 periodic variable stars brighter than I=18 mag: 31…

天体物理学 · 物理学 2016-08-30 A. UDALSKI , M. KUBIAK , M. SZYMANSKI , J. KALUZNY , M. MATEO , W. KRZEMINSKI

The fourteenth part of the OGLE-III Catalog of Variable Stars (OIII-CVS) contains Cepheid variables detected in the OGLE-II and OGLE-III fields toward the Galactic bulge. The catalog is divided into two main categories: 32 classical…

太阳与恒星天体物理 · 物理学 2012-01-04 I. Soszynski , A. Udalski , P. Pietrukowicz , M. K. Szymanski , M. Kubiak , G. Pietrzynski , L. Wyrzykowski , K. Ulaczyk , R. Poleski , S. Kozlowski

This paper presents the first part of the Optical Gravitational Lensing Experiment (OGLE) General Catalog of Stars in the Galactic bulge. The Catalog is based on observations collected during the OGLE microlensing search. This part contains…

天体物理学 · 物理学 2007-05-23 M. Szymanski , A. Udalski , M. Kubiak , J. Kaluzny , M. Mateo , W. Krzeminski

This paper presents analysis and interpretation of OGLE photometric data of four X-ray binary pulsar systems in the Small Magellanic Cloud: 1WGA J0054.9-7226, RX J0050.7-7316, RX J0049.1-7250, and 1SAX J0103.2-7209. In each case, the…

天体物理学 · 物理学 2009-10-31 M. J. Coe , J. A. Orosz

A high fraction of massive stars are found to be binaries but only a few of them are reported as photometrically variable. By studying the populations of SB2 in the 30 Doradus region, we found a subset of them that have photometry from the…

We have conducted a deep photometric survey of a 0.5 deg x 0.5 deg area of the Galactic Plane using the WFI instrument on the 2.2-m ESO telescope on La Silla, Chile. The dataset comprises a total of 267 R-band images, 204 from a 16 day…

太阳与恒星天体物理 · 物理学 2015-05-19 V. R. Miller , M. D. Albrow , C. Afonso , Th. Henning

We analyze the photometry of 117 OGLE stars with periodic transit events for the presence of ellipsoidal light variations, which indicate the presence of massive companions. We find that ~50% of objects may have stellar companions, mostly…

天体物理学 · 物理学 2009-11-07 E. Sirko , B. Paczynski

In the first paper of this series we presented EBAS, a new fully automated algorithm to analyse the lightcurves of eclipsing binaries, based on the EBOP code. Here we apply the new algorithm to the whole sample of 2580 binaries found in the…

天体物理学 · 物理学 2009-11-11 Tsevi Mazeh , Omer Tamuz , Pierre North

Surveys using CCD detectors are retrieving bright and faint cataloged clusters and revealing new ones in the Magellanic Clouds. This paper discusses the contribution of the OGLE Survey to the overall census of star clusters in the SMC. A…

天体物理学 · 物理学 2009-10-31 E. Bica , C. M. Dutra

Eclipsing binary star systems provide the most accurate method of measuring both the masses and radii of stars. Moreover, they enable testing tidal synchronization and circularization theories, as well as constraining models of stellar…

天体物理学 · 物理学 2008-11-04 Jonathan Devor

The Magellanic Clouds are two nearby dwarf irregular galaxies whose study can help us in understanding galaxy and stellar evolution. In particular, the Large Magellanic Cloud, the larger one, contains approximately 30 billion stars at…

星系天体物理 · 物理学 2025-06-23 A. Franco , A. A. Nucita , F. De Paolis. F. Strafella

The first catalog of chromospherically active and ellipsoidal variable stars in the OGLE database is presented. The periods, the observed magnitudes and colors, their values free of interstellar extinction, and Fourier coefficients of light…

天体物理学 · 物理学 2016-08-30 Arkadiusz Olech

We present the Catalog of Cepheids from the LMC. The Catalog contains 1333 objects detected in the 4.5 square degree area of central parts of the LMC. About 3.4*10^5 BVI measurements of these stars were collected during the OGLE-II…

天体物理学 · 物理学 2008-11-26 A. Udalski , I. Soszynski , M. Szymanski , M. Kubiak , G. Pietrzynski , P. Wozniak , K. Zebrun

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

We present the catalog of RR Lyrae stars from 2.4 square degrees of central parts of the Small Magellanic Cloud (SMC). The photometric data were collected during four years of the OGLE-II microlensing survey. Photometry of each star was…

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

This is the third installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R~2500 digital observations selected from the Galactic O-Star Catalog (GOSC). In this paper we…

We present a catalog containing 290 LMC and 590 SMC Cepheids which have been obtained using the two 4k $\times$ 8k CCD cameras of the EROS~2 microlensing survey. The Cepheids were selected from 1,134,000 and 504,000 stars in the central…

天体物理学 · 物理学 2007-05-23 C. Afonso

A sample of 33 eclipsing binaries observed in a field of the SMC with FLAMES@VLT is presented. The radial velocity curves obtained, together with existing OGLE light curves, allowed the determination of all stellar and orbital parameters of…

天体物理学 · 物理学 2009-11-13 Pierre L. North , Romain Gauderon , Frederic Royer