Zobrazeno 1 - 10
of 39
pro vyhledávání: '"T. Akhunov"'
Autor:
E. Koptelova, W. P. Chen, T. Chiueh, B. P. Artamonov, V. L. Oknyanskij, S. N. Nuritdinov, O. Burkhonov, T. Akhunov, V. V. Bruevich, O. V. Ezhkova, A. S. Gusev, A. V. Sergeyev, Sh. A. Ehgamberdiev, M. A. Ibragimov
Publikováno v:
Odessa Astronomical Publications, Vol 25, Iss 2, Pp 169-171 (2012)
We study brightness variations in the double lensed quasar UM673 (Q0142-100) with the aim of measuring the time delay between its two images. Methods.. We analyzed the V, R and I-band light curves of the A and B images of UM673, which cover ten obser
Externí odkaz:
https://doaj.org/article/5540beda74264d6685ae69c60d87bbad
Autor:
N. S. Ivanov, S. V. Zhuravlev, O. A. Kharkina, M. V. Zdorova, A. A. Shirokov, M. T. Akhunov, D. D. Sosova
Publikováno v:
Russian Electrical Engineering. 93:803-803
An Erratum to this paper has been published: https://doi.org/10.3103/S1068371223330015
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2baa305a45d9319deda648ddddfc144
https://doi.org/10.3103/s1068371223330015
https://doi.org/10.3103/s1068371223330015
Akademický článek
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Autor:
O. A. Burkhonov, Alexander S. Gusev, Olivier Wertz, T. Akhunov, Cédric Delvaux, B. P. Artamonov, Alexey V. Sergeyev, V. N. Dudinov, R. Gaisin, S. N. Nuritdinov, Andrii Elyiv, O. V. Ezhkova, A. P. Zheleznyak, V. V. Bruevich, Jean Surdej
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 465:3607-3621
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc946a06e2916a6fa5de46a13a12ef61
https://doi.org/10.1093/mnras/stw2951
https://doi.org/10.1093/mnras/stw2951
Autor:
Sh. A. Ehgamberdiev, Vyacheslav N. Shalyapin, B. P. Artamonov, O. A. Burkhonov, Alexey V. Sergeyev, A. P. Zheleznyak, T. Akhunov, Luis J. Goicoechea, V. V. Bruevich, E. V. Shimanovskaya, I. M. Asfandiyarov
Publikováno v:
Astronomy & Astrophysics. 637:A89
Quasar microlensing offers a unique opportunity to resolve tiny sources in distant active galactic nuclei and study compact object populations in lensing galaxies. We therefore searched for microlensing-induced variability of the gravitationally lens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c3201f2ebff63aa3df81a29c86620ec
https://doi.org/10.1051/0004-6361/202037902
https://doi.org/10.1051/0004-6361/202037902
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
Microlensing variability in FBQ 0951+2635: short-time-scale events or a long-time-scale fluctuation?
Autor:
O. A. Burkhonov, B. P. Artamonov, A. Ullán, Ekaterina Koptelova, Alexey V. Sergeyev, T. Akhunov, Luis J. Goicoechea, S. N. Nuritdinov, Vyacheslav N. Shalyapin, A. P. Zheleznyak
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 397:1982-1989
We present and analyse new R-band frames of the gravitationally lensed double quasar FBQ 0951+2635. These images were obtained with the 1.5m AZT-22 Telescope at Maidanak (Uzbekistan) in the 2001-2006 period. Previous results in the R band (1999-2001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0c6bc06ab3f55216b65443d139feda1
https://doi.org/10.1111/j.1365-2966.2009.15104.x
https://doi.org/10.1111/j.1365-2966.2009.15104.x
Autor:
A. P. Zheleznyak, V. V. Bruevich, O. A. Burkhonov, T. Akhunov, A. Ullán, Luis J. Goicoechea, Ekaterina Koptelova
Publikováno v:
Astronomy & Astrophysics. 452:25-35
The time delays between the components of a lensed quasar are basic tools to analyze the expansion of the Universe and the structure of the main lens galaxy halo. In this paper, we focus on the variability and time delay of the double system SBS 0909
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::369baf8982e62128f81fbcd28ded8af3
https://doi.org/10.1051/0004-6361:20054283
https://doi.org/10.1051/0004-6361:20054283
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:
I. U. Tadjibaev, Stefan Gottloeber, E. R. Gaynullina, T. Akhunov, K. Mirtadjieva, O. A. Burkhonov, Lutz Wisotzki, R. W. Schmidt, S. N. Nuritdinov, J. Wambsganss
Publikováno v:
Astronomy & Astrophysics. 440:53-58
We present the results of a monitoring campaign of the double quasar SBS1520+530 at Maidanak observatory from April 2003 to August 2004. We obtained light curves in V and R filters that show small-amplitude \Delta m~0.1 mag intrinsic variations of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff5a3082f0effcd0fb257ddff0111cfc
https://doi.org/10.1051/0004-6361:20052852
https://doi.org/10.1051/0004-6361:20052852