Zobrazeno 1 - 10
of 29
pro vyhledávání: '"I. Kh. Iliev"'
We present results of a study of the variability of the marginal Am star HD\,176843 observed in the {\it Kepler} field. {\it Kepler} photometry and ground-based spectroscopy are used to investigate the light variations of the star. HD\,176843 is clas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::624ad375c17578438d6cfef839176d4c
http://arxiv.org/abs/1904.00367
http://arxiv.org/abs/1904.00367
Publikováno v:
EPJ Web of Conferences, Vol 152, p 05004 (2017)
The high precision data obtained by the {\it Kepler} satellite allows us to detect hybrid type pulsator candidates more accurately than the data obtained by ground-based observations. In this study, we present preliminary results on the new analysis
Publikováno v:
New Astronomy. 30:28-31
We present results of an asteroseismic study on the $\gamma$ Dor type {\it Kepler} target KIC\,6462033. {\it Kepler} photometry is used to derive the frequency content and principal modes. High-dispersion ground-based spectroscopy is also carried out
Autor:
Henry A. Kobulnicky, I. Kh. Iliev, Mario Damasso, K. Antoniuk, Ivanka Stateva, T. Gülmez, N. Pit, L. A. Balona, B. Ulaş, D. N. Shakhovskoy, M. Alvarez, L. Fox Machado, D. Cenadelli, Albino Carbognani, Raul Michel, T. E. Pickering, C. Ulusoy, Dinko Dimitrov
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 433:394-401
Iliev, Ilian Kh/0000-0002-9811-449X; Fox-Machado, Lester/0000-0002-2781-873X; Dimitrov, Dinko/0000-0002-1667-5868; Balona, Luis/0000-0003-1241-9792; Shakhovskoy, Dmitry/0000-0002-3180-4621; , Antoniuk/0000-0003-2754-8925; CARBOGNANI, Albino/0000-0002
Autor:
Ivanka Stateva, Iosif I. Romanyuk, D. O. Kudryavtsev, Zdeněk Mikulášek, I. Kh. Iliev, J. Zverko, Jiří Krtička, Jozef Žižňovský
Publikováno v:
Astronomy & Astrophysics. 506:845-856
Context. HD 143418 was discovered recently to be a double-lined spectroscopic binary with a primary designated as a CP star. Its light displays an orbital phase coupled variability with a peak-to-peak amplitude up to 0.04 mag. Aims. The photometry av
Autor:
Jiří Krtička, Tomáš Gráf, Miloslav Zejda, Jan Janík, Gregory W. Henry, Hrvoje Božić, Iosif I. Romanyuk, Michal Ceniga, Petr Škoda, J. Zverko, I. Kh. Iliev, Martin Netolický, Miroslav Šlechta, Daniela Korčáková, D. A. Bohlender, Jozef Žižňovský, Zdeněk Mikulášek
Publikováno v:
Astronomy & Astrophysics. 485:585-597
Context. Light and spectrum variations of the magnetic chemically peculiar (mCP) stars are explained by the oblique rigid rotator model with a rotation period usually assumed to be stable on a long time scale. A few exceptions, such as CU Vir or 56 A
Publikováno v:
Astrophysics. 49:497-505
The star HD220825 is studied as part of a program to investigate the chemical abundance of CP stars with weak magnetic fields. Its magnetic field is found to be Be < 100 G. The chemical abundance appears to correspond to that of CP stars with high ma
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 370:819-827
The main goal of this paper is to continue a systematic abundance analysis of a sample of Am binaries in order to search for possible abundance anomalies driven by tidal interaction in these binary systems. New CCD observations in two spectral region
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 352:863-876
After establishing the synthetic Δa photometric system in the first paper of this series, we now present model atmospheres computed with individual abundances for a representative sample of chemically peculiar (CP) stars and either confirm or redete
Publikováno v:
Proceedings of the International Astronomical Union. 2004:301-306
We report on the detection of secondary spectra in five spectroscopic binary systems: HD 434, HD 861, HD 108642, HD 178449, and HD 216608. High signal-to-noise high resolution spectroscopic observations were carried out at the Bulgarian NAO Rozhen as