On the irregular variations in the light curves of RY Vul
Journal Title: Odessa Astronomical Publications - Year 2018, Vol 31, Issue
Abstract
The star RY Vul according General Catalogue of Variable Star (GCVS) is RR Lyr variable, but period and initial epoch are unknown. To determine these parameters the photometric observations during several seasons in 201 1-201 7 of the variable star RY Vul on the Astronomical station near Odessa have been carried out . The 48-cm telescope reector AZT-3 equipped with CCD photometer was used. The light curves in V and R band were obtained and analyzed. It turned out that the light curves of the star is fully irregular. Therefore, the variable star RY Vul should be attribute to type " irregular variables " .
Authors and Affiliations
S. N. Udovichenko, L. E. Keir
Keywords
Related Articles
- EP ID EP603649
- DOI 10.18524/1810-4215.2018.31.145374
- Views 65
- Downloads 0
GRAVITATIONAL MICROLENSING AND EXTENDED SOURCE MODELS
We perform statistical simulations of light curves of extended microlensed sources having different brightness distribution in the source plane. We generated a set of realizations of lensing point mass system that takes...
THE STUDY OF INDICATRICES OF SPACE OBJECT COATINGS IN A CONTROLLED LABORATORY ENVIRONMENT
The indicatrices of light scattering by radiation balance coatings used on space objects (SO) were determined in the laboratory experiment in a controlled condition. The laboratory device for the physical simulation of p...
NUCLEAR MAGICS AT MAGNETOROTATIONAL SUPERNOVA EXPLOSION
Nucleosynthesis at magnetorotational supernova explosion is considered by employing arguments of nuclear statistical equilibrium. Effects of ultra-strong nuclear magnetization are demonstrated to enhance the portion of t...
RESULTS OF PROCESSING OF CCD OBSERVATIONS OF SELECTED OPEN CLUSTERS ON MAIDANAK
Observations of 20 open clusters at the Maidanak Observatory were performed using the Zeiss-1000 telescope in the winter of 2018. As the light receiver, a CCD camera Apogee Alta U9000 (3K x 3K, FOV 19.5'x19.5') was used....
ΛGR CENTENNIAL: COSMIC WEB IN DARK ENERGY BACKGROUND
The basic building blocks of the Cosmic Web are groups and clusters of galaxies, superclusters (pancakes) and filaments embedded in the universal dark energy background. The background produces antigravity, and the antigr...