Zobrazeno 1 - 10
of 12
pro vyhledávání: '"V. G. Vakulik"'
Publikováno v:
Odessa Astronomical Publications, Vol 20, Iss 1, Pp 208-211 (2007)
A mechanism of colorized phenomena in gravitationally lensed quasar Q2237+0305 due to microlensing is analysed in computer simulation. A two-component quasar spatial structure model consisting of a hot central source surrounded by an extended outer s
Externí odkaz:
https://doaj.org/article/a94b704d6b7e4fd0ba2838b11e432e03
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 424:820-829
The gravitational properties of a torus are investigated. It is shown that a torus can be formed from test particles orbiting in the gravitational field of a central mass. In this case, a toroidal distribution is achieved because of the significant s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7cf71a2ad9c938fa56b9d670ad494c0
https://doi.org/10.1111/j.1365-2966.2012.21186.x
https://doi.org/10.1111/j.1365-2966.2012.21186.x
Publikováno v:
Radio Physics and Radio Astronomy. 3:7-17
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f3905816618facb054eb568256977ce
https://doi.org/10.1615/radiophysicsradioastronomy.v3.i1.20
https://doi.org/10.1615/radiophysicsradioastronomy.v3.i1.20
Publikováno v:
Radio Physics and Radio Astronomy. 2:115-124
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e865d78c4fbf835db6550064c984b014
https://doi.org/10.1615/radiophysicsradioastronomy.v2.i2.40
https://doi.org/10.1615/radiophysicsradioastronomy.v2.i2.40
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 411:557-564
The integral expression for gravitational potential of a homogeneous circular torus composed of infinitely thin rings is obtained. Approximate expressions for torus potential in the outer and inner regions are found. In the outer region a torus poten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87c8dc700ff401b5b9fa234b39c0679b
https://doi.org/10.1111/j.1365-2966.2010.17700.x
https://doi.org/10.1111/j.1365-2966.2010.17700.x
Autor:
A. P. Zheleznyak, V. N. Dudinov, V. V. Bruevich, V. G. Vakulik, A. A. Sergeyev, S. N. Nuritdinov, A. Ye. Kochetov, Rudolph E. Schild, I. Ye. Sinelnikov, Valerii Shulga, A. A. Minakov, B. P. Artamonov, V. V. Konichek, O. A. Burkhonov, G. V. Smirnov, T. Akhunov, R. Gaysin, V. S. Tsvetkova
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 406:2764-2776
We report the results of our multicolor observations of PG 1115+080 with the 1.5-m telescope of the Maidanak Observatory (Uzbekistan, Central Asia) in 2001-2006. Monitoring data in filter R spanning the 2004, 2005 and 2006 seasons (76 data points) de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1408614fd44374e385899158b67e0229
https://doi.org/10.1111/j.1365-2966.2010.16882.x
https://doi.org/10.1111/j.1365-2966.2010.16882.x
Publikováno v:
Kinematics and Physics of Celestial Bodies. 25:28-37
We provide a brief overview of the methods for estimating the dark matter content in the Universe based on the phenomenon of strong gravitational lensing—the method of macroimage flux ratio anomalies and the method based on an analysis of the proba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17869a4d82fe9d2efda44e400c205045
https://doi.org/10.3103/s0884591309010048
https://doi.org/10.3103/s0884591309010048
Autor:
V. N. Dudinov, O. A. Burkhonov, S. N. Nuritdinov, V. G. Vakulik, Rudolph E. Schild, T. Akhunov, V. S. Tsvetkova
Publikováno v:
Astronomy & Astrophysics. 447:905-913
We present new brightness monitoring observations of the 4 components of gravitationally lensed system Q2237+0305, which show detection of an intrinsic quasar brightness fluctuation at a time of subdued microlensing activity, between June 27 and Octo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53cbd55596a00afccac4ec458d219f50
https://doi.org/10.1051/0004-6361:20053574
https://doi.org/10.1051/0004-6361:20053574
Autor:
V. G. Vakulik, A. A. Minakov
Publikováno v:
Astronomy Letters. 26:628-638
We investigate the effect of microlensing on parameters of the images of distant sources seen near the critical curves of complex gravitational lenses, which are represented as a sum of compact structures—microlenses (stars, star-like or planet-lik
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7e685ec8f165dc98d1b9cbbde4c5b98
https://doi.org/10.1134/1.1316108
https://doi.org/10.1134/1.1316108
Autor:
O. A. Burkhonov, Valerii Shulga, V. S. Tsvetkova, B. P. Artamonov, V. G. Vakulik, I. Ye. Sinelnikov, V. V. Bruevich, V. V. Konichek, A. Ye. Kochetov, V. N. Dudinov, A. A. Sergeyev, A. A. Minakov, T. Akhunov, S. N. Nuritdinov, Rudolph E. Schild, G. V. Smirnov
We report new estimates of the time delays in the quadruple gravitationally lensed quasar PG1115+080, obtained from the monitoring data in filter R with the 1.5-m telescope at the Maidanak Mountain (Uzbekistan, Central Asia) in 2004-2006. The time de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::929afafaa140a3204c786488fad4f35c
