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相关论文: The LMC eclipsing binary HV 2274: fundamental prop…

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We present optical spectroscopy and extensive $RI$ differential photometry of the double-lined eclipsing binary NSVS 02502726 (2MASS J08441103+5423473). Simultaneous solution of two-band light curves and radial velocities permits…

太阳与恒星天体物理 · 物理学 2009-11-13 O. Cakirli , C. Ibanoglu , C. Gungor

I describe the selection and initial characterisation of 20 eclipsing binary stars that are suitable for calibration and testing of stellar models and data analysis algorithms used by the PLATO mission and spectroscopic surveys. The binary…

太阳与恒星天体物理 · 物理学 2023-04-26 P. F. L. Maxted

In this paper, we present the results of a comprehensive study of six eclipsing binaries whose components are confirmed or suspected Am stars. By combining long-term high-resolution CAOS spectroscopy and TESS photometry we have been able to…

太阳与恒星天体物理 · 物理学 2024-02-27 G. Catanzaro , A. Frasca , J. Alonso-Santiago , C. Colombo

The eclipsing binary LL Aqr is a bright V = 9.32, detached system consisting of two solar-type stars in an eccentric orbit (P = 20.2 d). The secondary component, LL Aqr B, was previously found to have physical and atmospheric parameters…

太阳与恒星天体物理 · 物理学 2025-11-21 N. J. Miller , P. F. L. Maxted , A. Hahlin , D. Graczyk

We aim at constraining evolutionary models at low mass and young ages by identifying interesting transiting system members of the nearest OB association to the Sun, Upper Scorpius, targeted by the Kepler mission. We produced light curves…

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

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

We present UBV photometry of the eclipsing binary Harvard Variable 2274 in the Large Magellanic Cloud (LMC). The stellar parameters of this binary system were calculated by Guinan et al. (1998a) who gave both a reddening towards HV 2274 of…

天体物理学 · 物理学 2009-10-31 C. A. Nelson , K. H. Cook , P. Popowski , D. A. Alves

Eclipsing binaries serve as a valuable source of stellar masses and radii that inform stellar evolutionary models and provide insight into additional astrophysical processes. The exquisite light curves generated by space-based missions such…

太阳与恒星天体物理 · 物理学 2016-05-25 Rachel A. Matson , Douglas R. Gies , Zhao Guo , Jerome A. Orosz

We present the most comprehensive analysis to date of the Upper Centaurus Lupus eclipsing binary MML 53 (2.097892 d), and for the first time, confirm the bound-nature of the third star (~9yr orbit). Our analysis uses new and archival…

太阳与恒星天体物理 · 物理学 2019-03-06 Y. Gómez Maqueo Chew , L. Hebb , H. C. Stempels , A. Paat , K. G. Stassun , F. Faedi , R. A. Street , G. Rohn , C. Hellier , D. R. Anderson

We report differential photometric observations and radial-velocity measurements of the detached, 1.69-day period, double-lined eclipsing binary AQ Ser. Accurate masses and radii for the components are determined to better than 1.8% and…

太阳与恒星天体物理 · 物理学 2015-06-18 Guillermo Torres , Luiz Paulo R. Vaz , Claud H. Sandberg Lacy , Antonio Claret

We present {\it UBVI} photometry of the eclipsing binary HV2274 - the system which has been recently used for distance determination to the LMC by Guinan et al. (1998). We determine the interstellar reddening to the star,…

天体物理学 · 物理学 2009-10-30 A. Udalski , G. Pietrzynski , P. Wozniak , M. Szymanski , M. Kubiak , K. Zebrun

In this paper, we derive the fundamental properties of 1SWASPJ011351.29+314909.7 (J0113+31), a metal-poor (-0.40 +/- 0.04 dex), eclipsing binary in an eccentric orbit (~0.3) with an orbital period of ~14.277 d. Eclipsing M dwarfs orbiting…

First spectroscopic and new photometric observations of the eclipsing binary FM Leo are presented. The main aims were to determine orbital and stellar parameters of two components and their evolutionary stage. First spectroscopic…

Spectroscopic observations of the low-mass eclipsing binary NSVS 11868841 have been obtained and the radial velocities were derived for both components. The masses and radii determined for the components are $M_1$ =0.870$\pm$0.074\Msun,…

太阳与恒星天体物理 · 物理学 2010-08-03 Ö. Çakırlı , C. Ibanoğlu , A. Dervişoğlu

CONTEXT: Accurate physical properties of eclipsing stars provide important constraints on models of stellar structure and evolution, especially when combined with spectroscopic information on their chemical composition. Empirical…

太阳与恒星天体物理 · 物理学 2015-06-03 G. Torres , J. V. Clausen , H. Bruntt , A. Claret , J. Andersen , B. Nordstrom , R. P. Stefanik , D. W. Latham

We present the physical parameters of an eclipsing binary system EPIC 211982753 derived through photometric and radial velocity data modeling. We make use of photometric data from NASA's K2 mission, ASAS-SN, and 1.3-m Devasthal Fast Optical…

太阳与恒星天体物理 · 物理学 2023-08-23 Alaxender Panchal , Yogesh C. Joshi

We present new V-band differential brightness measurements as well as new radial-velocity measurements of the detached, circular, 0.84-day period, double-lined eclipsing binary system CV Boo. These data along with other observations from…

天体物理学 · 物理学 2009-11-13 Guillermo Torres , Luiz Paulo R. Vaz , Claud H. Sandberg Lacy

We present first results of a comprehensive photometric O-star survey performed with a robotic twin refractor at the Universit\"atssternwarte Bochum located near Cerro Armazones in Chile. For three high-mass stars, namely Pismis24-1,…

太阳与恒星天体物理 · 物理学 2015-06-16 A. Barr Domínguez , R. Chini , F. Pozo Nuñez , M. Haas , M. Hackstein , H. Drass , R. Lemke , M. Murphy

[ABRIDGED] We present the results of a 3 year monitoring program of a sample of very low mass (VLM) field binaries using both astrometric and spectroscopic data obtained in conjunction with the laser guide star adaptive optics system on the…

太阳与恒星天体物理 · 物理学 2015-05-18 Q. M. Konopacky , A. M. Ghez , T. S. Barman , E. L. Rice , J. I. Bailey , R. J. White , I. S. McLean , G. Duchene