Zobrazeno 1 - 10
of 18
pro vyhledávání: '"V. R. Amirkhanyan"'
Autor:
V. R. Amirkhanyan
Publikováno v:
Astrophysical Bulletin. 77:31-39
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99f3f34a5ac2edc4d1d36d71a30f7129
https://doi.org/10.1134/s1990341322010023
https://doi.org/10.1134/s1990341322010023
Autor:
V. R. Amirkhanyan
Publikováno v:
Astrophysical Bulletin. 76:1-5
We use experimental data of the FIRST survey to construct the radiation pattern of external components of extended radio sources. The radiation pattern differs from spherical. The greatest deviation from sphere is observed in the region facing the ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4391b1f2081043a1212e0b9abdfa9b90
https://doi.org/10.1134/s1990341321010041
https://doi.org/10.1134/s1990341321010041
Publikováno v:
Astrophysical Bulletin. 71:479-488
We describe the design of a low- and medium-resolution spectrograph ( R=300-1300) developed at the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) for the 1.6-m AZT-33IK telescope of Sayan Observatory of the Institute o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc14965c264212f843210a00af060076
https://doi.org/10.1134/s1990341316040118
https://doi.org/10.1134/s1990341316040118
Autor:
V. R. Amirkhanyan
Publikováno v:
Astrophysical Bulletin. 71:384-394
The relation between parameters the D/sqrt(I) and Ic/Isum and radiation patterns of the optical and radio components of an extended radio source is analyzed, where D and I are the apparent size and observed radiation intensity of the source or its co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc5a4364a81671978f25f9b41cfb8347
https://doi.org/10.1134/s1990341316040027
https://doi.org/10.1134/s1990341316040027
Publikováno v:
Astrophysical Bulletin. 70:45-50
We report the results of the spectroscopic observations carried out at the SAO RAS 6-m telescope for the optical components of nine new extended radio sources found in the NVSS catalog. The measured redshifts of the host galaxies are in the range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41a6e1c72fde375d5fef9332ac961366
https://doi.org/10.1134/s1990341315010058
https://doi.org/10.1134/s1990341315010058
We describe a device (adapter) for off-axis guiding and photometric calibration of wide-angle spectrographs operating in the prime focus of the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences. To compensate c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::734daa5be93211eb195f0b65aef313ae
Autor:
V. R. Amirkhanyan
Publikováno v:
Astrophysical Bulletin. 64:333-339
An analysis of the position angles distribution of 10461 extended radio sources shows that the spatial orientation of the axes of these objects is anisotropic: they avoid the direction towards the Celestial Pole and are mostly oriented in the equator
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::482ba8d4b3ebf9720b5f82920afc4f10
https://doi.org/10.1134/s1990341309040038
https://doi.org/10.1134/s1990341309040038
Autor:
V. R. Amirkhanyan
Publikováno v:
Astrophysical Bulletin. 62:105-110
The results of photometric observations of the optical component of the known variable radio source Z0524+03 are reported. The light variations amounted to 1.5 m during the period from January 21, 1998 to January 28, 2001 and occurred synchronously i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::745bc3eccf1734d69f1a9ef91f7019d3
https://doi.org/10.1134/s1990341307020010
https://doi.org/10.1134/s1990341307020010
Autor:
V. R. Amirkhanyan
In this paper the next attempt is made to clarify the nature of the Euclidean behavior of the boundary in the angular size-redshift cosmological test. It is shown experimentally that this can be explained by the selection determined by anisotropic mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08347a60e1dccc89ceb7a980101d964e
http://arxiv.org/abs/1501.02690
http://arxiv.org/abs/1501.02690
Autor:
V. R. Amirkhanyan, V. L. Afanasiev
We describe the technique of spectropolarimetric observations allowing for the measurements of the Stokes parameters in one of the observational modes of the SCORPIO focal reducer of the 6-m BTA telescope of the SAO RAS. The characteristics of the in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ee843c5d19ab704a84d45c14ad73aa9