Zobrazeno 1 - 5
of 5
pro vyhledávání: '"G. R. Kostandian"'
Publikováno v:
Communications of the Byurakan Astrophysical Observatory. :13-20
The results of spectral observations of flare stars TZ Ari and Ross 867B are presented. Observations have been carried out by the 2.6m telescope of Byurakan Astrophysical Observatory in 1999, 2001 and 2018. The spectral cameras "ByuFOSC" and "SCORPIO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::332d73ffc9f8c2cb91b61ce465f2f6ff
https://doi.org/10.52526/25792776-2020.67.1-13
https://doi.org/10.52526/25792776-2020.67.1-13
Publikováno v:
Astrophysics. 54:203-213
A search for Hα objects in four fields with an overall area of about 0.14 square degrees in the region of NGC 6910 (the core of the known Cyg OB9 association) has led to the discovery of 64 emission stars, of which 49 are newly detected. The high su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9506f76fefc65f3ecf06c276969cf9cd
https://doi.org/10.1007/s10511-011-9172-y
https://doi.org/10.1007/s10511-011-9172-y
Autor:
José A. Docobo, Vakhtang S. Tamazian, N. D. Melikian, G. R. Kostandian, A. A. Karapetian, A. A. Henden
Publikováno v:
Astrophysics. 53:373-386
The nova-like cataclysmic variable (CV) TT Ari was detected in its second deep minimum in November 2009. Study of its evolutionary phase is very important for research on the nature of CVs in the VY Scl group. During this phase the spectral energy di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad012712b165a1ec74230cf81c7538b0
https://doi.org/10.1007/s10511-010-9129-6
https://doi.org/10.1007/s10511-010-9129-6
Autor:
N. D. Melikian, A. A. Karapetian, Vakhtang S. Tamazian, José A. Docobo, A. L. Samsonian, G. R. Kostandian
Publikováno v:
Astrophysics. 53:202-211
Spectral observations of the eclipsing binary RY Sct during 2005 and 2009 on the 2.6-m telescope at the Byurakan Observatory are reported. Although RY Sct requires further, more detailed study, the present limited observations reveal a number of impo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c19fba2fa92183ef99681a3a41730d7
https://doi.org/10.1007/s10511-010-9112-2
https://doi.org/10.1007/s10511-010-9112-2
Autor:
N. D. Melikian, G. R. Kostandian, R. Iglesias, José A. Docobo, A. A. Karapetian, Vakhtang S. Tamazian
Publikováno v:
Astrophysics. 51:372-386
Results from a spectral study of one of the brightest cataclysmic variables, the star TT Ari, are presented. They are generally in good agreement with previous observations, but there are some differences. The luminosity of the star, as well as the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad8212e3bacaee954fe1542b2c34743a
https://doi.org/10.1007/s10511-008-9023-7
https://doi.org/10.1007/s10511-008-9023-7