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We present absolute physical and orbital parameters for three double-lined detached eclipsing binary systems from the All Sky Automated Survey (ASAS) catalogue with subgiant and giant components. These parameters were derived from archival…

Solar and Stellar Astrophysics · Physics 2013-06-21 M. Ratajczak , K. G. Hełminiak , M. Konacki , A. Jordan

We present the orbital and physical parameters of a newly discovered low-mass detached eclipsing binary from the All-Sky Automated Survey (ASAS) database: ASAS J011328-3821.1 A - a member of a visual binary system with the secondary…

V1022 Cas has been known as a spectroscopic binary for a century. It was found to be eclipsing based on photometry from the Hipparcos satellite, and an astrometric orbit was recently obtained from near-infrared interferometry. We present…

Solar and Stellar Astrophysics · Physics 2020-12-22 John Southworth

Our aim is to precisely measure the physical parameters of the eclipsing binary IO Aqr and derive a distance to this system by applying a surface brightness - colour relation. Our motivation is to combine these parameters with future…

We aim to measure very precise and accurate model-independent masses and distances of detached binary stars. Precise masses at the $< 1$% level are necessary to test and calibrate stellar interior and evolution models, while precise and…

Solar and Stellar Astrophysics · Physics 2023-04-12 A. Gallenne , A. Mérand , P. Kervella , D. Graczyk , G. Pietrzyński , W. Gieren , B. Pilecki

We present the orbital and physical parameters of the detached eclipsing binary V1200~Centauri (ASAS~J135218-3837.3) from the analysis of spectroscopic observations and light curves from the \textit{All Sky Automated Survey} (ASAS) and…

Solar and Stellar Astrophysics · Physics 2015-06-23 J. Coronado , K. G. Hełminiak , L. Vanzi , N. Espinoza , R. Brahm , A. Jordán , M. Catelán , M. Ratajczak , M. Konacki

Context: Independent distance estimates are particularly useful to check the precision of other distance indicators, while accurate and precise masses are necessary to constrain evolution models. Aim: The goal is to measure the masses and…

Solar and Stellar Astrophysics · Physics 2016-01-27 A. Gallenne , G. Pietrzyński , D. Graczyk , P. Konorski , P. Kervella , A. Mérand , W. Gieren , R. I. Anderson , S. Villanova

UZ Dra is a detached and totally-eclipsing binary containing two late-F stars in a circular orbit of period 3.261 d. It has been observed by the Transiting Exoplanet Survey Satellite in 41 sectors, yielding a total of 664,809 high-quality…

Solar and Stellar Astrophysics · Physics 2025-11-03 John Southworth

V455 Aur is a detached eclipsing binary containing two F-stars in a 3.15-d orbit with a small eccentricity. Its eclipses were discovered in data from the Hipparcos satellite and a spectroscopic orbit was obtained by Griffin (2001, 2013).…

Solar and Stellar Astrophysics · Physics 2021-06-09 John Southworth

In this paper we present the first results of a detailed spectroscopic and photometric analysis of the V = 11.7m eclipsing binary ASAS J052821+0338.5. With the FIES spectrograph at the Nordic Optical Telescope we have obtained a series of…

Astrophysics · Physics 2009-11-13 H. C. Stempels , L. Hebb , K. G. Stassun , J. Holtzman , N. Dunstone , L. Glowienka , S. Frandsen

Context. The precise determinations of stellar mass at $\sim$1% provide important constraints on stellar evolution models. Accurate parallax measurements can also serve as independent benchmarks for the next Gaia data release. Aims. We aim…

Solar and Stellar Astrophysics · Physics 2019-11-27 A. Gallenne , G. Pietrzyński , D. Graczyk , B. Pilecki , J. Storm , N. Nardetto , M. Taormina , W. Gieren , A. Tkachenko , P. Kervella , A. Mérand , M. Weber

Aims. We present the results of our detailed spectroscopic and photometric analysis of two previously unknown < 1 M{_\sun} detached eclipsing binaries: ASAS J045304-0700.4 and ASAS J082552-1622.8. Methods. With the HIgh Resolution Echelle…

Solar and Stellar Astrophysics · Physics 2015-05-20 Krzysztof G. Hełminiak , Maciej Konacki

We present a study of the properties of the O-type, massive eclipsing binary 2MASS J13130841-6239275 located in the outskirts of the Danks 2 cluster in the G305 star-forming complex, using near-infrared spectroscopy from VLT/ISAAC. We…

Solar and Stellar Astrophysics · Physics 2015-10-07 M. Kourniotis , A. Z. Bonanos , S. J. Williams , N. Castro , E. Koumpia , J. L. Prieto

We present a detailed analysis of the detached eclipsing binary system HO Telescopii, which contains two A-type stars in a circular orbit of period 1.613 d. We use light curves from the Transiting Exoplanet Survey Satellite (TESS), which…

Solar and Stellar Astrophysics · Physics 2024-08-26 John Southworth

We present the first full orbital and physical analysis of HD 187669, recognized by the All-Sky Automated Survey (ASAS) as the eclipsing binary ASAS J195222-3233.7. We combined multi-band photometry from the ASAS and SuperWASP public…

Double-lined eclipsing binaries allow the direct determination of masses and radii, which are key to test stellar models. With the launch of the TESS mission, many well-known eclipsing binaries have been observed at higher photometric…

Solar and Stellar Astrophysics · Physics 2022-09-07 D. Baroch , A. Giménez , J. C. Morales , I. Ribas , E. Herrero , V. Perdelwitz , C. Jordi , T. Granzer , C. Allende Prieto

We have analyzed the double-lined eclipsing binary system OGLE-051019.64-685812.3 in the LMC which consists of two G4 giant components with very similar effective temperatures. A detailed analysis of the OGLE I-band light curve of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 G. Pietrzynski , I. Thompson , D. Graczyk , W. Gieren , A. Udalski , O. Szewczyk , D. Minniti , Z. Kolaczkowski , F. Bresolin , R. -P. Kudritzki

MU Cas is a detached eclipsing binary containing two B5 V stars in an orbit of period 9.653 d and eccentricity 0.192, which has been observed in seven sectors using the Transiting Exoplanet Survey Satellite (TESS). We use these new light…

Solar and Stellar Astrophysics · Physics 2024-10-31 John Southworth

We present an analysis of BS Dra, a detached eclipsing binary containing two almost-identical F3 V stars in a 3.36-d circular orbit, based on 40 sectors of observations from the Transiting Exoplanet Survey Satellite (TESS) and published…

Solar and Stellar Astrophysics · Physics 2026-03-13 John Southworth

The visual A component of the Gliese 586AB system is a double-lined spectroscopic binary consisting of two cool stars with the exceptional orbital eccentricity of 0.976. Such an extremely eccentric system may be important for our…

Solar and Stellar Astrophysics · Physics 2013-10-31 K. G. Strassmeier , M. Weber , T. Granzer
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