BVRI Standardization of the CCD Photometric System of Sobaeksan Optical Astronomy Observatory [PDF]
Journal of Astronomy and Space Sciences, 2008 A total of 792 CCD images of V523 Cas were obtained on four nights of Jan. 2003 with the BVRI CCD photometric system attached to a 61cm reflector of Sobaeksan Optical Astronomy Observatory (SOAO).
Jang Hae Jeong +2 more
doaj +1 more source
A Construction of an Automatic Observation System for Bright and Long Period Variable Stars [PDF]
Journal of Astronomy and Space Sciences, 2006 An automatic observation system has been constructed at Chungbuk National University for the purpose of monitoring the bright and long period variable stars effectively.
Joh-Na Yoon +3 more
doaj +1 more source
Photometric study of three ultrashort-period contact binaries [PDF]
, 2020 We carried out high-precision photometric observations of three eclipsing ultrashort-period contact binaries (USPCBs). Theoretical models were fitted to the light curves by means of the Wilson-Devinney code.
El-Sadek, M.A. +5 more
core +6 more sources
Contact binaries with additional components. III. The adaptive optics detections [PDF]
, 2007 We present results of the CFHT adaptive optics search for companions of a homogeneous group of contact binary stars, as a contribution to our attempts to prove a hypothesis that these binaries require a third star to become so close as observed.
Duchene G. +12 more
core +2 more sources
The Use of Abbreviations in English-Medium Astrophysics Research Paper Titles: A Problematic Issue [PDF]
, 2015 In this study, we carry out a qualitative and quantitative analysis of abbreviations in 300 randomly collected research paper titles published in the most prestigious European and US-based Astrophysics journals written in English.
Alcaraz Ariza, María Ángeles +1 more
core +3 more sources
Accurate masses and radii of normal stars: modern results and applications [PDF]
, 2009 This paper presents and discusses a critical compilation of accurate, fundamental determinations of stellar masses and radii. We have identified 95 detached binary systems containing 190 stars (94 eclipsing systems, and alpha Centauri) that satisfy our ...
A Claret +203 more
core +2 more sources
Radial Velocity Studies of Close Binary Stars.VIII
, 2003 Radial-velocity measurements and sine-curve fits to the orbital velocity variations are presented for the seventh set of ten close binary systems: V410 Aur, V523 Cas, QW Gem, V921 Her, V2357 Oph, V1130 Tau, HN UMa, HX UMa, HD 93917, NSV 223. All systems,
Bartkevicius A. +13 more
core +2 more sources
A BVRcIc Survey of W Ursae Majoris Binaries
, 2012 We report on a BVRcIc survey of field W Ursae Majoris binary stars and present accurate colors for 606 systems that have been observed on at least three photometric nights from a robotic observatory in southern Arizona. Comparison with earlier photometry
Blattler +19 more
core +1 more source
A test of the optimization techniques for contact binaries photometric analysis [PDF]
, 2022 Light curve analysis of contact binaries are presented and compared with previous cross-correlations velocity data. The critical parameter q (mass-ratio) obtained by a grid technique is confronted with its spectroscopic value. For total eclipsing systems,
Fariñas, R., Gómez, M., Lapasset, E.
core
Testing gravitational theories using Eccentric Eclipsing Detached Binaries
, 2012 In this paper we compare the effects of different theories of gravitation on the apsidal motion of a sample of Eccentric Eclipsing Detached Binary stars.
Brans +41 more
core +1 more source