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相关论文: The Pre-Main-Sequence Eclipsing Binary ASAS J05282…

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We present the physical properties of the eclipsing binary V2281 Cyg, which shows a light-time effect due to a supposed tertiary component from its eclipse timing variation according to the $Kepler$ observations. The high-resolution spectra…

太阳与恒星天体物理 · 物理学 2017-11-29 Jae-Rim Koo , Jae Woo Lee , Kyeongsoo Hong

V570 Per is a binary star system containing two F-type stars in a 1.90 d period circular orbit. It shows shallow partial eclipses that were discovered from its Hipparcos light curve. We present an analysis of this system based on two…

太阳与恒星天体物理 · 物理学 2023-09-28 John Southworth

ASAS is a long term project to monitor bright variable stars over the whole sky. It has discovered 50,122 variables brighter than V < 14 mag south of declination +28 degrees, and among them 11,099 eclipsing binaries. We present a…

天体物理学 · 物理学 2009-11-11 B. Paczynski , D. Szczygiel , B. Pilecki , G. Pojmanski

[abridged] We report four years of radial velocity monitoring observations of SDSS J080531.84+481233.0 that reveal significant and periodic variability, confirming the binary nature of the source. We infer an orbital period of 2.02$\pm$0.03…

太阳与恒星天体物理 · 物理学 2016-08-17 Adam J. Burgasser , Cullen H. Blake , Christopher R. Gelino , Johannes Sahlmann , Daniella Bardalez Gagliuffi

We present a detailed photometric and spectroscopic analysis of DD CMa, based on published survey photometry and new spectroscopic data. We find an improved orbital period of $P_\mathrm{o}= 2.0084530 \pm 0.0000006 ~\mathrm{d}$. Our spectra…

太阳与恒星天体物理 · 物理学 2021-09-02 J. A. Rosales , R. E. Mennickent , G. Djurašević , J. F. González , I. Araya , M. Cabezas , D. R. G. Schleicher , M. Curé

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…

We present results from a detailed analysis of a third eclipsing binary (EB) system in the Large Magellanic Cloud, EROS 1044 (~B2 IV-V + ~B2 III-IV). Our study combines the "classical" EB study of light and radial velocity curves with…

天体物理学 · 物理学 2009-11-07 Ignasi Ribas , Edward L. Fitzpatrick , Frank P. Maloney , Edward F. Guinan , Andrzej Udalski

The eclipsing binaries are still important objects for our understanding of the universe. Especially these ones located within the more complex multiple systems can help us solving the problem of their origin and subsequent evolution of…

太阳与恒星天体物理 · 物理学 2019-08-15 P. Zasche , R. Uhlar , P. Svoboda , J. Jurysek , D. Korcakova , M. Wolf , M. Slechta , L. Kotkova

WR~21a was known as a massive spectroscopic binary composed of an O2.5 If*/WN6ha primary and an O3 V((f*))z secondary. Although a minimum value, the mass estimated for the primary placed it as one of the most massive stars found in our…

太阳与恒星天体物理 · 物理学 2022-09-14 Rodolfo H. Barbá , Roberto C. Gamen , Pablo Martín-Ravelo , Julia I. Arias , Nidia I. Morrell

Massive, eclipsing, double-lined, spectroscopic binaries are not common but are necessary to understand the evolution of massive stars as they are the only direct way to determine stellar masses. They are also the progenitors of energetic…

太阳与恒星天体物理 · 物理学 2015-05-18 V. E. Stroud , J. S. Clark , I. Negueruela , P. Roche , A. J. Norton , F. Vilardell

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…

The main belt asteroids 458271 (2010 UM26) and 2010 RN221 share almost identical orbital elements and currently appear as comoving objects 30 arcsec apart in the plane of the sky. They are products of the breakup of a parent object, or the…

地球与行星天体物理 · 物理学 2023-09-14 David Jewitt , Yonyoung Kim , Jing Li , Max Mutchler

We present the discovery of a 360 AU separation T3 companion to the tight (3.1 AU) M4.5+M6.5 binary 2MASS J02132062+3648506. This companion was identified using Pan-STARRS1 data and, despite its relative proximity to the Sun…

Context: One of the greatest uncertainties in modelling the mass-exchange phases during the evolution of a binary system is the amount of mass and angular momentum that has been lost from the system. To constrain this problem, a favourable,…

太阳与恒星天体物理 · 物理学 2019-04-17 Johannes Andersen , Guillermo Torres , Jens Viggo Clausen

We present the new results of our long-term observational project to detect the small variations in the orbital periods of low-mass and short-period eclipsing binaries. About 120 new precise mid-eclipse times were obtained for three…

太阳与恒星天体物理 · 物理学 2021-03-17 M. Wolf , H. Kučáková , P. Zasche , K. Hornoch , J. Kára , J. Merc , M. Zejda

We report extensive high-resolution spectroscopic observations and V-band differential photometry of the slightly eccentric 7.02-day detached eclipsing binary V501 Mon (A6m+F0), which we use to determine its absolute dimensions to high…

太阳与恒星天体物理 · 物理学 2015-10-28 Guillermo Torres , Claud H. Sandberg Lacy , Kresimir Pavlovski , Francis C. Fekel , Matthew W. Muterspaugh

The multi-color photometric and spectroscopic (based on observations obtained with the T{\"U}B{\.I}TAK National Observatory 1.5-meter telescope, which is owned and operated by the T{\"U}B{\.I}TAK) observations of the newly discovered…

太阳与恒星天体物理 · 物理学 2015-06-12 Ö. Çakirli

We report the discovery of an eclipsing binary - HS 0705+6700 - being an sdB star with a faint companion. From its light curve the orbital period of 8263.87 s, the mass ratio of the system q = 0.28, the inclination of 84.4 deg and other…

天体物理学 · 物理学 2009-11-07 H. Drechsel , U. Heber , R. Napiwotzki , R. Ostensen , J. -E. Solheim , F. Johannessen , S. L. Schuh , J. Deetjen , S. Zola

IT Cas is a detached eclipsing binary system containing two F3 V stars in an orbit of period 3.90 d and eccentricity 0.089. Light curves are available from three sectors of observations from the Transiting Exoplanet Survey Satellite (TESS),…

太阳与恒星天体物理 · 物理学 2023-06-19 John Southworth

Double-lined spectroscopic orbital elements have recently been found for the central binary in the massive triple, delta Orionis A based on radial velocities from cross-correlation techniques applied to IUE high dispersion spectra and He I…