23 citations · 68 across the 6 of their papers we have counts for
5 papers · 1 filter
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…