Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Belik, S. I."'
The oxygen 7771-4 A triplet is a good indicator of luminosity in A-G supergiants. However, its strength also depends on other atmospheric parameters. In this study, we present the luminosity calibrations, where, for the first time, the effects of the
Externí odkaz:
http://arxiv.org/abs/1204.4115
Autor:
Kovtyukh, V. V., Soubiran, C., Luck, R. E., Turner, David G., Belik, S. I., Andrievsky, S. M., Chekhonadskikh, F. A.
Accurate and homogeneous atmospheric parameters (Teff, log (g), Vt, [Fe/H]) are derived for 74 FGK non-variable supergiants from high-resolution, high signal-to-noise ratio, echelle spectra. Extremely high precision for the inferred effective tempera
Externí odkaz:
http://arxiv.org/abs/0807.2057
Publikováno v:
Astron.Astrophys. 427 (2004) 933-936
Highly precise temperatures (sigma = 10-15 K) have been determined from line depth ratios for a set of 248 F-K field dwarfs of about solar metallicity (-0.5 < [Fe/H] < +0.4), based on high resolution (R=42000), high S/N echelle spectra. A new gap has
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409753
Publikováno v:
Astron.Astrophys.411:559-564,2003
Line depth ratios measured on high resolution (R=42000), high S/N echelle spectra are used for the determination of precise effective temperatures of 181 F,G,K Main Sequence stars with about solar metallicity (-0.5 < [Fe/H] < +0.5). A set of 105 rela
Externí odkaz:
http://arxiv.org/abs/astro-ph/0308429
Autor:
Komarov, N. S., Arkhipov, M. G., Basak, N. Yu., Belik, S. I., Cherkass, A. G., Chuprina, R. I., Depenchuk, E A., Dragunova, A. V., Dulapchi, I. F., Gorbaneva, T. I., Karamysh, V. F., Kantsen, L. E., Korotin, S. A., Kovtyukh, V. V., Orlova, L. F., Motrich, V. D., Pereverzentsev, A. F., Shevchuk, T. V., Zakozhurnikova, N. N.
Publikováno v:
Odessa Astronomical Publications, Vol 11, Iss 0, Pp 3-48 (2017)
Odessa Astronomical Publications; Том 11 (1998); 3-48
Odessa Astronomical Publications; Том 11 (1998); 3-48
The new spectral energy distributions Eλ for 360 stars in wavelength region from λ 330 to λ 725 nm are given. The observations for "relatively-absolute" stellar spectrophotometry were obtained at high-altitude astronomical station “Terskol” of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::cb5e011419f4cb1aee89760ccc7970cf
http://oap.onu.edu.ua/article/view/98645
http://oap.onu.edu.ua/article/view/98645
Autor:
Dragunova, A. V., Belik, S. I.
Publikováno v:
Odessa Astronomical Publications, Vol 9, Iss 0, Pp 64-65 (2017)
Odessa Astronomical Publications; Том 9 (1996); 64-65
Odessa Astronomical Publications; Том 9 (1996); 64-65
The comparison of spectral energy distributions and synthetic spectra for a few G-giants is presented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::96750d9aaaed998d286f7a609c5c00c8
http://oap.onu.edu.ua/article/view/109067
http://oap.onu.edu.ua/article/view/109067
Publikováno v:
Odessa Astronomical Publications, Vol 10, Iss 0, Pp 52-53 (2017)
Odessa Astronomical Publications; Том 10 (1997); 52-53
Odessa Astronomical Publications; Том 10 (1997); 52-53
The mean values of energy distributions in spectra of cool stars of various spectral types have been found using the Catalogue of spectra of 555 stars.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::917e434df1b99f243c38552b93a296c9
http://oap.onu.edu.ua/article/view/104875
http://oap.onu.edu.ua/article/view/104875
Publikováno v:
Odessa Astronomical Publications, Vol 10, Iss 0, Pp 50-51 (2017)
Odessa Astronomical Publications; Том 10 (1997); 50-51
Odessa Astronomical Publications; Том 10 (1997); 50-51
he mean energy distribution of cool giant stars was used for comparison with synthetic spectra. The synthetic spectra was calculated using the various grids of stellarrnodel atrnospheres.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d0dde36c50fb4ca789eef4a9dee66d15
http://oap.onu.edu.ua/article/view/98805
http://oap.onu.edu.ua/article/view/98805
Publikováno v:
Odessa Astronomical Publications, Vol 26, Iss 1, Pp 120-122 (2013)
NASA Astrophysics Data System
NASA Astrophysics Data System
HQ Car is listed as an δ Cep star (DCEP) in the GCVS. High-resolution spectra of HQ Car showed the presence of the Balmer and HeI 5876 Å emissions. The light curve shows steeper rise than decline, and there is evidence for the presence of a bump in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e98cecec15500a0ebc721112916ad7e0
http://oap.onu.edu.ua/article/view/82314
http://oap.onu.edu.ua/article/view/82314
Autor:
Kovtyukh, V. V., Chekhonadskikh, F. A., Luck, R. E., Soubiran, C., Yasinskaya, M. P., Belik, S. I.
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2010, 408, pp.1568-1575. ⟨10.1111/J.1365-2966.2010.17217.X⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2010, 408, pp.1568-1575. ⟨10.1111/J.1365-2966.2010.17217.X⟩
International audience; Luminous FG supergiants can be used as extragalactic distance indicators. In order to fully exploit the properties of these bright stars, we must first learn how to measure their luminosities. Based primarily on classical Ceph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8d72bb68b3c9048d161d04e857b8b73c
https://hal.archives-ouvertes.fr/hal-00521973
https://hal.archives-ouvertes.fr/hal-00521973