Zobrazeno 1 - 10
of 10
pro vyhledávání: '"I. M. Asfandiyarov"'
Autor:
A. B. Rivera, C. W. Morgan, S. M. Florence, K. Kniezewski, M. Millon, F. Courbin, S. E. Dahm, F. J. Vrba, T. M. Tilleman, M. A. Cornachione, I. M. Asfandiyarov, S. A. Ehgamberdiev, O. A. Burkhonov
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 173 (2024)
We analyze variability in 15-season optical lightcurves from the doubly imaged lensed quasar SDSS J165043.44+425149.3 (SDSS1650), comprising five seasons of monitoring data from the Maidanak Observatory (277 nights in total, including the two seasons
Externí odkaz:
https://doaj.org/article/ae7d8d01c2b745a38350ef5ff827c07f
Autor:
Kh. B. Sultanov, Zhang Xiaoming, Xu Jin, Chen Liang, Jiang Xiao-Jun, Wang Jin-hu, Wang Jianfeng, Hou Zhigang, R. A. Salyamov, I. M. Asfandiyarov, Wang Guomin, B. Khafizov, Zeng Xianqun, Sh. A. Ehgamberdiev, Ge Liang, Zhang Zhi-Yong
Publikováno v:
Applied Solar Energy. 54:220-223
The features of designing, creating, and operating a solar photoelectric power station (PhEPS) for a 10 kW high-altitude observatory Maidanak (Uzbekistan Academy of Sciences) introduced into operation in 2016 to secure continuous and efficient operat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dccb55f10ec415530c06f257a99c5cd0
https://doi.org/10.3103/s0003701x18030064
https://doi.org/10.3103/s0003701x18030064
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:
V. M. Larionov, S. G. Jorstad, A. P. Marscher, C. M. Raiteri, M. Villata, I. Agudo, M. F. Aller, A. A. Arkharov, I. M. Asfandiyarov, U. Bach, R. Bachev, A. Berdyugin, M. Böttcher, C. S. Buemi, P. Calcidese, D. Carosati, P. Charlot, W.-P. Chen, A. Di Paola, M. Dolci, S. Dogru, V. T. Doroshenko, Yu. S. Efimov, A. Erdem, A. Frasca, L. Fuhrmann, P. Giommi, L. Glowienka, A. C. Gupta, M. A. Gurwell, V. A. Hagen-Thorn, W.-S. Hsiao, M. A. Ibrahimov, B. Jordan, M. Kamada, T. S. Konstantinova, E. N. Kopatskaya, Y. Y. Kovalev, Y. A. Kovalev, O. M. Kurtanidze, A. Lähteenmäki, L. Lanteri, L. V. Larionova, P. Leto, P. Le Campion, C.-U. Lee, E. Lindfors, E. Marilli, I. McHardy, M. G. Mingaliev, S. V. Nazarov, E. Nieppola, K. Nilsson, J. Ohlert, M. Pasanen, D. Porter, T. Pursimo, J. A. Ros, K. Sadakane, A. C. Sadun, S. G. Sergeev, N. Smith, A. Strigachev, N. Sumitomo, L. O. Takalo, K. Tanaka, C. Trigilio, G. Umana, H. Ungerechts, A. Volvach, W. Yuan
Publikováno v:
Larionov, V M, Jorstad, S G, Marscher, A P, Raiteri, C M, Villata, M, Agudo, I, Aller, M F, Arkharov, A A, Asfandiyarov, I M, Bach, U, Bachev, R, Berdyugin, A, Böttcher, M, Buemi, C S, Calcidese, P, Carosati, D, Charlot, P, Chen, W-P, Di Paola, A, Dolci, M, Dogru, S, Doroshenko, V T, Efimov, Y S, Erdem, A, Frasca, A, Fuhrman, L, Giommi, P, Glowienka, L & ... 2008, ' Results of WEBT, VLBA and RXTE monitoring of 3C 279 during 2006-2007 ', Astronomy & Astrophysics, vol. 492, no. 2, pp. 389-400 . https://doi.org/10.1051/0004-6361:200810937
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2008, 492 (2), pp.389-400. ⟨10.1051/0004-6361:200810937⟩
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2008, 492 (2), pp.389-400. ⟨10.1051/0004-6361:200810937⟩
We present radio-to-optical data taken by the WEBT, supplemented by VLBA and RXTE observations, of 3C 279. Our goal is to use this extensive database to draw inferences regarding the physics of the relativistic jet. We assemble multifrequency light c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33ee3b2e3a6b630863d16938bd0225b9
https://pure.au.dk/portal/da/publications/results-of-webt-vlba-and-rxte-monitoring-of-3c-279-during-20062007(b852acc0-0287-11de-a987-000ea68e967b).html
https://pure.au.dk/portal/da/publications/results-of-webt-vlba-and-rxte-monitoring-of-3c-279-during-20062007(b852acc0-0287-11de-a987-000ea68e967b).html
Autor:
M. Bottcher, S. Basu, M. Joshi, M. Villata, A. Arai, N. Aryan, I. M. Asfandiyarov, U. Bach, R. Bachev, A. Berduygin, M. Blaek, C. Buemi, A. J. Castro‐Tirado, A. De Ugarte Postigo, A. Frasca, L. Fuhrmann, V. A. Hagen‐Thorn, G. Henson, T. Hovatta, R. Hudec, M. Ibrahimov, Y. Ishii, R. Ivanidze, M. Jelinek, M. Kamada, B. Kapanadze, M. Katsuura, D. Kotaka, Y. Y. Kovalev, Yu. A. Kovalev, P. Kubanek, M. Kurosaki, O. Kurtanidze, A. Lahteenmaki, L. Lanteri, V. M. Larionov, L. Larionova, C.‐U. Lee, P. Leto, E. Lindfors, E. Marilli, K. Marshall, H. R. Miller, M. G. Mingaliev, N. Mirabal, S. Mizoguchi, K. Nakamura, E. Nieppola, M. Nikolashvili, K. Nilsson, S. Nishiyama, J. Ohlert, M. A. Osterman, S. Pak, M. Pasanen, C. S. Peters, T. Pursimo, C. M. Raiteri, J. Robertson, T. Robertson, W. T. Ryle, K. Sadakane, A. Sadun, L. Sigua, B.‐W. Sohn, A. Strigachev, N. Sumitomo, L. O. Takalo, Y. Tamesue, K. Tanaka, J. R. Thorstensen, G. Tosti, C. Trigilio, G. Umana, S. Vennes, S. Vitek, A. Volvach, J. Webb, M. Yamanaka, H.‐S. Yim
The quasar 3C279 was the target of an extensive multiwavelength monitoring campaign from January through April 2006, including an optical-IR-radio monitoring campaign by the Whole Earth Blazar Telescope (WEBT) collaboration. In this paper we focus on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c50fb995f459f76c33abb633085ec91b
http://arxiv.org/abs/0708.2291
http://arxiv.org/abs/0708.2291
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses V. The time delay in SDSS J1650+4251
Autor:
C. Vuissoz, Mansur Ibrahimov, L. Le Guillou, Dominique Sluse, Pierre Magain, Frederic Courbin, A. Eigenbrod, I. M. Asfandiyarov, Georges Meylan, H. Van Winckel, E. Stoops
Aims: Our aim is to measure the time delay between the two gravitationally lensed images of the z = 1.547 quasar SDSS J1650+4251, in order to estimate the Hubble constant H_0. Methods: Our measurement is based on R-band light curves with 57 epochs ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bd0a97039db04199829b57ffd60cb58
Autor:
M. Villata, C. M. Raiteri, O. M. Kurtanidze, M. G. Nikolashvili, M. A. Ibrahimov, I. E. Papadakis, G. Tosti, F. Hroch, L. O. Takalo, A. Sillanpää, V. A. Hagen-Thorn, V. M. Larionov, R. D. Schwartz, J. Basler, L. F. Brown, T. J. Balonek, E. Benítez, A. Ramírez, A. C. Sadun, P. Boltwood, M. T. Carini, D. Barnaby, J. M. Coloma, J. A. Ros, B. Z. Dai, G. Z. Xie, J. R. Mattox, D. Rodriguez, I. M. Asfandiyarov, A. Atkerson, J. L. Beem, S. D. Bloom, S. M. Chanturiya, S. Ciprini, S. Crapanzano, J. A. de Diego, N. V. Efimova, D. Gardiol, J. C. Guerra, B. B. Kahharov, B. Z. Kapanadze, H. Karttunen, T. Kato, G. N. Kimeridze, N. A. Kudryavtseva, M. Lainela, L. Lanteri, E. G. Larionova, M. Maesano, N. Marchili, G. Massone, T. Monroe, F. Montagni, R. Nesci, K. Nilsson, J. C. Noble, G. Nucciarelli, L. Ostorero, J. Papamastorakis, M. Pasanen, C. S. Peters, T. Pursimo, P. Reig, W. Ryle, S. Sclavi, L. A. Sigua, M. Uemura, W. Wills
Publikováno v:
VILLATA, M. et al. 2004, The WEBT BL Lacertae Campaign 2001 and its extension : Optical light curves and colour analysis 1994–2002, Astronomy and Astrophysics, vol. 421, no. 1, p. 103-114
RODERIC. Repositorio Institucional de la Universitat de Valéncia
instname
RODERIC. Repositorio Institucional de la Universitat de Valéncia
instname
BL Lacertae has been the target of four observing campaigns by the Whole Earth Blazar Telescope (WEBT) collaboration. In this paper we present UBVRI light curves obtained by theWEBT from 1994 to 2002, including the last, extended BL Lac 2001 campaign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00fe68a3a42440b8c4b58f4cf96e1081
http://hdl.handle.net/10550/14014
http://hdl.handle.net/10550/14014
Autor:
Frederic Courbin, E. Eulaers, Sh. A. Ehgamberdiev, Pierre Magain, Tushar P. Prabhu, C. S. Stalin, Georges Meylan, H. Van Winckel, I. M. Asfandiyarov, S. Rathna Kumar, Malte Tewes
Publikováno v:
A&A
This paper presents optical R-band light curves and the time delay of the doubly imaged gravitationally lensed quasar SDSS J1001+5027 at a redshift of 1.838. We have observed this target for more than six years, between March 2005 and July 2011, usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6570f900bd595a0681d4dfe62d1b417
https://doi.org/10.1051/0004-6361/201322116
https://doi.org/10.1051/0004-6361/201322116
Autor:
E. Eulaers, Georges Meylan, Sh. A. Ehgamberdiev, Frederic Courbin, H. Van Winckel, C. S. Stalin, I. M. Asfandiyarov, S. Rathna Kumar, Malte Tewes, Pierre Magain, Tushar P. Prabhu
Publikováno v:
Astronomy & Astrophysics
Aims. Within the framework of the COSMOGRAIL collaboration we present 7- and 8.5-year-long light curves and time-delay estimates for two gravitationally lensed quasars: SDSS J1206+4332 and HS 2209+1914. Methods. We monitored these doubly lensed quasa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08fa67bebe2b3641fd04f8bf976d898e
Autor:
Mansur Ibrahimov, M. Koleva, Malte Tewes, Frederic Courbin, Prasenjit Saha, Dominique Sluse, Pierre Magain, E. Eulaers, Jonathan P. Coles, Virginie Chantry, Yves Revaz, C. Faure, Georges Meylan, H. Van Winckel, I. M. Asfandiyarov, Simon Dye
Publikováno v:
Astronomy & Astrophysics. 536:A53
We present accurate time delays for the quadruply imaged quasar HE 0435-1223. The delays were measured from 575 independent photometric points obtained in the R-band between January 2004 and March 2010. With seven years of data, we clearly show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::440a9ee61eae37b0ad6fb49a742dd71d
https://doi.org/10.1051/0004-6361/201015709
https://doi.org/10.1051/0004-6361/201015709