PHOTOMETRY AND BLAZHKO EFFECT IN RR LYR-TYPE STAR AE LEO

S. N. Udovichenko; L. E. Keir

doi:10.18524/1810-4215.2017.30.114381

PHOTOMETRY AND BLAZHKO EFFECT IN RR LYR-TYPE STAR AE LEO

Автор(и)

S. N. Udovichenko Astronomical Observatory, Odessa National University, Ukraine
L. E. Keir Astronomical Observatory, Odessa National University, Ukraine

DOI:

https://doi.org/10.18524/1810-4215.2017.30.114381

Ключові слова:

Stars, oscillations, variables RR Lyr-type stars, individual AE Leo

Анотація

The photometric observations for the RR Lyr-type star AE Leo in the Astronomical station near Odessa using the 48-cm reﬂector AZT-3 and the CCD photometer equipped with the V ﬁlter have been carried out. The light curves shows variable amplitude of light maxima and the moderate Blazhko eﬀect. The analysis of the O-C light maxima for our observations and the ASAS, NSVS data indicates the secular period changes.

Посилання

APASS, Star catalog: 2010, http://www.aavso.org.

Benn D.: http://www.aavso.org/vstar.

Kurochkin N.E.: 1949, Perem. Zvezdy, N6, 303.

Lenz P., Breger M.: 2004, Comm.in Asteroseismology 144, p.41.

Meinunger L.: 1961, MVS N604-605.

Morgenroth O.: 1935 Astron. Nachr., 256, 281.

Motl D.: 2009-17 http://sourceforge.net/projects/c-munipack

Paschke A., Martignoni M.: 2008http://www.ast.obs-mip.fr/users/leborgne/dbRR/

Pojmanski G.: 2002, Acta Astronomica, 52, 397.

Samus N.N., Durlevich O.V., Kazarovets E V., KireevaN.N., Pastukhova E.N., Zharova A.V. et al.: 2011, General Catalogue of Variable Stars (GCVS data- base, Version 2011Jan).

Udovichenko S.N.: 2012, Odessa Astron. Publ., 25, 32.

Wozniak, P.R., Vestrand, W.T., Akerlof, C.W. et al.: 2004, Astron. J., 127, 2436.