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We present comprehensive spectroscopic and photometric analysis of the detached eclipsing binary KIC 12418816, which is composed of two very similar and young main sequence stars of spectral type K0 on a circular orbit. Combining…

Solar and Stellar Astrophysics · Physics 2017-12-13 Hasan Ali Dal , Orkun Ozdarcan

We show that the star known as 2MASS J05162881+2607387 (hereafter J0516) is a double-lined eclipsing binary with nearly identical low-mass components. The spectroscopic elements derived from 18 spectra obtained with the High Resolution…

Astrophysics · Physics 2008-11-26 Amanda J. Bayless , Jerome A. Orosz

The recently discovered eclipsing binary system TYC 2675-663-1 is a X-ray source, and shows properties in the optical that are similar to the W UMa systems, but are somewhat unusual compared to what is seen in other contact binary systems.…

Solar and Stellar Astrophysics · Physics 2015-05-18 M. D. Caballero-Garcia , G. Torres , I. Ribas , D. Risquez , B. Montesinos , J. M. Mas-Hesse

The observations of eclipsing binary systems are of great importance in astrophysics, as they allow direct measurements of fundamental stellar parameters. By analysing high-quality space-based observations with ground-based photometric…

Solar and Stellar Astrophysics · Physics 2025-01-23 N. Alan , F. Alicavus , M. Alpsoy

We report the detection of a very low mass star (VLMS) companion to the primary star 1SWASPJ234318.41+295556.5A (J2343+29A), using radial velocity (RV) measurements from the PARAS (PRL Advanced Radial-velocity Abu-sky Search) high…

Solar and Stellar Astrophysics · Physics 2016-07-13 Priyanka Chaturvedi , Abhijit Chakraborty , B. G. Anandarao , Arpita Roy , Suvrath Mahadevan

The two objects 1SWASP J150822.80-054236.9 and 1SWASP J160156.04+202821.6 were initially detected from their SuperWASP archived light curves as candidate eclipsing binaries with periods close to the short-period cut-off of the orbital…

Solar and Stellar Astrophysics · Physics 2014-03-07 M. E. Lohr , S. T. Hodgkin , A. J. Norton , U. C. Kolb

Binaries with a white dwarf primary and a main sequence secondary can be used to test our understanding of both single and binary star evolution. A small fraction of such systems experienced a common-envelope phase from which they emerged…

Solar and Stellar Astrophysics · Physics 2022-08-08 R. Priyatikanto , C. Knigge , S. Scaringi , J. Brink , D. A. H. Buckley

TIC 322208686 is known to be a detached binary that exhibits two types of variability: pulsation and eclipse. We present the physical properties of the target star using the short-cadence TESS data from sectors 24, 57, and 58, and our…

Solar and Stellar Astrophysics · Physics 2025-11-25 Jae Woo Lee , Kyeongsoo Hong , Min-Ji Jeong , Jang-Ho Park , Pakakaew Rittipruk , Hye-Young Kim

HS 0705+6700 is a short-period (P=2.3 hours), close binary containing a hot sdB-type primary and a fully convective secondary. We have monitored this eclipsing binary for more than 2 years and as a result, 32 times of light minimum were…

Solar and Stellar Astrophysics · Physics 2009-11-13 S. Qian , L. Zhu , S. Zola , W. Liao , L. Liu , L. Li , M. Winiarski , E. Kuligowska , J. Kreiner

The multi-color photometric and spectroscopic observations of the newly discovered eclipsing binary T-Lyr0-08070 were obtained. The resultant light and radial velocities were analysed and the absolute parameters of the components were…

Solar and Stellar Astrophysics · Physics 2015-06-11 O. Cakirli , C. Ibaoglu , E. Sipahi

We describe a newly-discovered detached M-dwarf eclipsing binary system, the fourth such system known. This system was first observed by the TrES network during a long term photometry campaign of 54 nights. Analysis of the folded light…

New BVR light curves of the eclipsing binary system NSV 5904 have been constructed based on CCD observations obtained using 1.88-m telescope of Kottamia observatory during the phase of telescope testing and adjusting its optical quality on…

Solar and Stellar Astrophysics · Physics 2012-11-07 A. Essam , A. Naklawy , A. A. Haroon , M. A. Hamdy , G. B. Ali , H. A. Ismail , I. M. Selim , Y. A. Azzam , F. I. Elnagahy

The newly discovered brown-dwarf eclipsing binary 2MASS J05352184-0546085 provides a unique laboratory for testing the predictions of theoretical models of brown-dwarf formation and evolution. The finding that the lower-mass brown dwarf in…

Astrophysics · Physics 2009-06-23 Keivan G. Stassun , Robert D. Mathieu , Jeff A. Valenti

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

We have found a new low-mass, double-lined, detached eclipsing binary, GU Boo, among a sample of new variables from the ROTSE-I database. The binary has an orbital period of 0.488728 +/- 0.000002 days, and estimated apparent magnitudes…

Astrophysics · Physics 2009-11-11 M. Lopez-Morales , I. Ribas

By cross-matching the eclipsing binary catalog from TESS with that from LAMOST MRS, semi-detached eclipsing binaries with radial velocities coverage spanning more than 0.3 phases were authenticated. The absolute parameters for these systems…

Solar and Stellar Astrophysics · Physics 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

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

During processing the observations of the intermediate polar 1RXS J180340.0+401214, obtained 26.05.2012 at the 60-cm telescope of the Mt. Suhora observatory (Krakow, Poland), variability of 2MASS J18024395+4003309 was discovered. As this…

Solar and Stellar Astrophysics · Physics 2013-01-01 Ivan L. Andronov , Vitalii V. Breus , Stanislaw Zola

We report the discovery of the first eclipsing detached double white dwarf (WD) binary. In a pulsation search, the low-mass helium core WD NLTT 11748 was targeted for fast (approx 1 minute) differential photometry with the Las Cumbres…

Solar and Stellar Astrophysics · Physics 2015-05-18 Justin D. R. Steinfadt , David L. Kaplan , Avi Shporer , Lars Bildsten , Steve B. Howell

We have discovered that the brown dwarf WISEJ014656.66+423410.0 is a close binary (0.0875$\pm$0.0021 arcsec, 0.93$^{+0.12}_{-0.16}$ AU) from Keck laser guide star adaptive optics imaging. Our photometry for this system reveals that both…

Solar and Stellar Astrophysics · Physics 2015-06-23 Trent J. Dupuy , Michael C. Liu , S. K. Leggett
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