23 citations · 68 across the 6 of their papers we have counts for
6 papers
A Study on the Evolutionary Period Changes of Short-period Type II Cepheids
Yacob Alemiye Mamo, Berdinkov N. Leonid, Pastukhova N. Elena
We investigate the period changes of 13 short-period Type II Cepheids using the O-C method over a century-long data baseline. The O-C diagrams for these stars exhibit a parabolic t…
A search for period changes of eight short-period Type II Cepheids
Alemiye M. Yacob, Leonid N. Berdnikov, Elena N. Pastukhova +2
In this study, we investigate the period changes of eight short-period Type II Cepheids of the BL Her subtype, i.e., with periods in the 1-4 day range. The diagrams for these…
The Fifth Edition of the General Catalogue of Variable Stars: Experiences in the Constellation of Centaurus
N. N. Samus, E. N. Pastukhova, O. V. Durlevich +1
We have recently announced that the General Catalogue of Variable Stars enters the stage of its fifth, purely electronic edition (GCVS 5.1). Recently, we have incorporated a new, c…
Sonneberg plate photometry for Boyajian's Star in two passbands
Michael Hippke, Peter Kroll, Frank Matthei +10
The F3 main sequence star KIC 8462852 (Boyajian's Star) showed deep (up to 20%) day-long brightness dips of unknown cause during the 4 years of the Kepler mission. A 0.164 mag (16%…
Cepheid investigations using the Kepler space telescope
R. Szabó, L. Szabados, C. -C. Ngeow +35
We report results of initial work done on selected candidate Cepheids to be observed with the Kepler space telescope. Prior to the launch 40 candidates were selected from previous…
Galactic clusters with associated Cepheid variables. VII. Berkeley 58 and CG Cassiopeiae
David G. Turner, D. Forbes, D. English +6
Photoelectric, photographic, and CCD UBV photometry, spectroscopic observations, and star counts are presented for the open cluster Berkeley 58 to examine a possible association wi…