中文
相关论文

相关论文: Fundamental effective temperature measurements for…

200 篇论文

The eclipsing binary LL Aqr consists of two late-type stars in an eccentric orbit with a period of 20.17 d. We use an extensive light curve from the SuperWASP survey augmented by published radial velocities and UBV light curves to measure…

太阳与恒星天体物理 · 物理学 2015-06-16 John Southworth

In the course of a project to study eclipsing binary stars in vinicity of the Sun, we found that the cooler component of LL Aqr is a solar twin candidate. This is the first known star with properties of a solar twin existing in a…

Recent studies have shown that stellar chromospheric activity, and its effect on convective energy transport in the envelope, is most likely the cause of significant radius and temperature discrepancies between theoretical evolution models…

太阳与恒星天体物理 · 物理学 2012-03-28 J. Vos , J. V. Clausen , U. G. Jørgensen , R. H. Østensen , A. Claret , M. Hillen , K. Exter

CPD-54 810 is a double-lined detached eclipsing binary containing two mid-F type dwarfs on an eccentric 26-day orbit. We perform a combined analysis of the extensive photometry obtained by the TESS space mission along with previously…

太阳与恒星天体物理 · 物理学 2022-11-16 N. J. Miller , P. F. L. Maxted , D. Graczyk , T. G. Tan , J. Southworth

Eclipsing binaries are important tools for studying stellar evolution and stellar interiors. Their accurate fundamental parameters are used to test evolutionary models, and systems showing apsidal motion can also be used to test the model's…

太阳与恒星天体物理 · 物理学 2018-06-27 Kathryn V. Lester , Douglas R. Gies

Stars with accurate and precise effective temperature (T$_{\rm eff}$) measurements are needed to test stellar atmosphere models and calibrate empirical methods to determine T$_{\rm eff}$. There are few standard stars currently available to…

太阳与恒星天体物理 · 物理学 2020-08-14 N. J. Miller , P. F. L. Maxted , B. Smalley

BW Aqr is a bright eclipsing binary star containing a pair of F7V stars. The absolute parameters of this binary (masses, radii, etc.) are known to good precision so they are often used to test stellar models, particularly in studies of…

太阳与恒星天体物理 · 物理学 2018-05-23 P. F. L. Maxted

EBLM J0608-59 / TOI-1338 / BEBOP-1 is a 12th-magnitude, F9V star in an eclipsing binary with a much fainter M-dwarf companion on a wide, eccentric orbit (P=14.6 d). The binary is orbited by two circumbinary planets: one transiting on a…

太阳与恒星天体物理 · 物理学 2024-06-07 P. F. L. Maxted , N. J. Miller , D. Sebastian , A. H. M. J. Triaud , D. V. Martin , A. Duck

We report extensive spectroscopic and differential V-band photometric observations of the 18.4-day detached double-lined eclipsing binary LV Her (F9V), which has the highest eccentricity (e = 0.613) among the systems with well-measured…

太阳与恒星天体物理 · 物理学 2014-11-20 Guillermo Torres , Claud H. Sandberg Lacy , Antonio Claret

We present new V-band differential photometry and radial-velocity measurements of the unevolved 1.18-day period F+G-type double-lined eclipsing binary VZ Cep. We determine accurate values for the absolute masses, radii, and effective…

天体物理学 · 物理学 2008-10-30 Guillermo Torres , Claud H. Sandberg Lacy

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 the search for eclipsing binaries with a pulsating component in the first catalogue of optically variable sources observed by OMC/INTEGRAL, which contains photometric data for more than 1000 eclipsing binaries. Five objects were…

Eclipsing binary systems have a unique feature, which enables scientists to obtain precise fundamental star parameters, which opens to greater area of astrophysics studies. In this study, we have derived the fundamental parameters, the…

太阳与恒星天体物理 · 物理学 2024-04-30 Gökhan Yücel , Remziye Canbay , Volkan Bakış

Low-mass stars in eclipsing binary systems show radii larger and effective temperatures lower than theoretical stellar models predict for isolated stars with the same masses. Eclipsing binaries with low-mass components are hard to find due…

BEBOP-3 is detached eclipsing binary star that shows total eclipses of a faint M~dwarf every 13.2 days by a 9$^{\rm th}$-magnitude F9V star. High precision radial velocity measurements have recently shown that this binary star is orbited by…

太阳与恒星天体物理 · 物理学 2025-10-28 P. F. L. Maxted , N. J. Miller , T. A. Baycroft , D. Sebastian , A. H. M. J. Triaud , D. V. Martin

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 present the results of our study of the long-period eclipsing binary star \Aur. The results are based on spectroscopic data obtained with the UFES \'echelle spectrograph and photometric observations from TESS. The derived radial velocity…

太阳与恒星天体物理 · 物理学 2025-04-10 Kniazev Alexei , Malkov Oleg , Gorda Stanislav , Berdnikov Leonid , Katkov Ivan

We have combined the Kepler Eclipsing Binary Catalogue with information from the HES, KIS and 2MASS photometric surveys to produce spectral energy distribution fits to over 2600 eclipsing binaries in the catalogue over a wavelength range of…

太阳与恒星天体物理 · 物理学 2015-06-17 D. J. Armstrong , Y. Gómez Maqueo Chew , F. Faedi , D. Pollacco

We present photometric observations in B and V as well as spectroscopic observations of the detached, eccentric 6.6-day double-lined eclipsing binary GG Ori, a member of the Orion OB1 association. Absolute dimensions of the components,…

天体物理学 · 物理学 2009-10-31 G. Torres , C. H. S. Lacy , A. Claret , J. A. Sabby

We present radial velocities of the double-lined spectroscopic binary NP Aqr. The radial velocities and the optical light curves obtained by Hipparcos and ASAS-3 are analyzed separately. The masses of the primary and secondary components…

太阳与恒星天体物理 · 物理学 2014-11-20 C. Ibanoglu , O. Cakirli , A. Dervisoglu
‹ 上一页 1 2 3 10 下一页 ›