Search Publications
A photometric study of HAT 141-03513: another twin of the V361 Lyr system
Wolf, M.; Kučáková, H.
The BVRI light curves were measured for the eclipsing binary HAT 141-03513 as a part of our long-term observational project for studying low-mass eclipsing binaries with a short orbital period. The asymmetric light curve and the difference in brightness in maxima, are probably the result of presence of a hot region on the surface of one component.…
Photometric study of five kepler contact binaries
Liu, Liang; Li, Xu-Zhi
A lot of data in time domain were obtained by the Kepler mission, including many contact binaries. Long-term observation lets us obtain more information about the short time scale variation in their light curves or in their orbital periods. Unfortunately, the exposure time is too long (most of them are 30 minutes). Hence, many variations in light …
Revised Orbital Parameters of Beaming Eclipsing Binary System HV Cnc from Kepler Photometry
Gürol, Birol; Gökay, Gökhan; Özdemir, Sacit
High precision photometry gathered from Kepler database and radial velocity measurements of the HV Cnc system found in the literature were simultaneously analyzed by the Wilson-Devinney (WD) code to better understand system parameters. Some physical quantities needed by the WD code in iterations, such as limb darkening coefficients, Kurucz's model…
Study of open cluster King 13 using CCD VI, 2MASS and Gaia DR2 Astrometry.
Bisht, D.; Rangwal, Geeta; Yadav, R. K. S. +2 more
In this paper, we present astrophysical parameters of the open cluster King 13 based on the VI CCD and 2MASS JHKs photometric data. This is a poorly studied cluster, for which new results have been found in the present work. To identify probable members, we use proper motion data from Gaia DR2 catalogue. The mean proper motion of the cl…
Multi-wavelength study in the region of IRAS 16571-4029 and 16575-4023 sources
Baume, G.; Borissova, J.; Ramirez Alegria, S. +2 more
We studied the stellar populations and their associated interstellar medium structures located in the region of IRAS 16571-4029 and 16575-4023 sources, aiming to evaluate their distance and their main physical parameters. We focused our attention on the embedded cluster DBS 113 and its associated HII region RCW 116B.
For the study, optical im…A new photometric study of T Tauri stars in the infrared
Chen, P. S.; Liu, J. Y.; Shan, H. G.
We have compiled infrared photometric data from the literature of practically all T Tauri stars found up to date including 444 classical T Tauri stars (CTTSs), 1698 weak-line T Tauri stars (WTTSs) and 1258 not classified T Tauri stars (3400 in total) in addition to 196 post-T Tauri stars (PTTSs). From this data bank we extract the infrared charact…