Zobrazeno 1 - 6
of 6
pro vyhledávání: '"individual (3C 454.3) [quasars]"'
Autor:
Haritma Gaur, L. N. Volvach, Wara Chamani, Merja Tornikoski, Paul J. Wiita, Alok C. Gupta, Anne Lähteenmäki, S. R. Patel, Joni Tammi, A. E. Volvach, V. R. Chitnis, R. J. C. Vera, S. Enestam, Arkadipta Sarkar
We performed a long-term optical (B, V, R bands), infra-red (J and K bands) and radio band (15, 22, 37 GHz band) study on the flat spectrum radio quasar, 3C 454.3, using the data collected over a period of more than 8 years (MJD 54500--57500). The te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aeba75f4b584c60cd51898f836f123d8
Autor:
Hugh D. Aller, Aditi Agarwal, Haocheng Zhang, Prashanth Mohan, A. Strigachev, L. N. Volvach, Alok C. Gupta, Pankaj Kushwaha, Paul J. Wiita, Luis C. Ho, Merja Tornikoski, Gulab C. Dewangan, Anne Lähteenmäki, A. E. Volvach, Haritma Gaur, R. Bachev, Mai Liao, Arun V. Mangalam, Mahito Sasada, Minfeng Gu, Evgeni Semkov, Margo F. Aller, M. Umeura
The blazar 3C454.3 exhibited a strong flare seen in gamma-rays, X-rays, and optical/NIR bands during 3--12 December 2009. Emission in the V and J bands rose more gradually than did the gamma-rays and soft X-rays, though all peaked at nearly the same
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5899d95d070e2c98dad0d18f78959b36
http://arxiv.org/abs/1708.03504
http://arxiv.org/abs/1708.03504
Autor:
Britzen S., Qian S., Witzel A., Krichbaum T., Aller M., Aller H., Kurtanidze O., Vercellone S., Richter G.
Publikováno v:
SCOPUS00046361-2013-557-SID84883138488
Context. 2251+158 (3C 454.3) is a well-studied quasar with rather unusual properties. It is among the most variable and brightest gamma-ray emitting active galactic nucleus (AGN) in the sky observed by Fermi. The multi-wavelength flux density emissio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0ba3e08a784d6e2a13123d94d58577c9
https://openrepository.ru/article?id=676531
https://openrepository.ru/article?id=676531
Autor:
Anne Lähteenmäki, Esko Valtaoja, A. Lobanov, A. Carraminana, Merja Tornikoski, V. H. Chavushyan, Jonathan León-Tavares, T. G. Arshakian, L. C. Popovic altaffilmark, L. Carrasco, Víctor M. Patiño-Álvarez
We report the detection of a statistically significant flare-like event in the Mg II\lambda 2800\AA\ emission line of 3C 454.3 during the outburst of autumn 2010. The highest levels of emission line flux recorded over the monitoring period (2008 - 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0aea7f16a1d8670abcdebe60eb91653b
https://aaltodoc.aalto.fi/handle/123456789/21848
https://aaltodoc.aalto.fi/handle/123456789/21848
Autor:
Sofia O. Kurtanidze, Valeri M. Larionov, M. F. Aller, Lorand A. Sigua, M. Trifoglio, V. Strelnitski, S. G. Sergeev, Fulvio Gianotti, J. L. Gomez, M. Cardillo, Pietro Ubertini, I. M. McHardy, Angela Bazzano, Fabrizio Lucarelli, Kirill Sokolovsky, C. M. Raiteri, A. Trois, T. Krajci, F. Lazzarotto, Mark Gurwell, I. Donnarumma, A. C. Sadun, Y. Evangelista, G. Walker, Manasvita Joshi, P. Santolamazza, M. Pasanen, D. A. Morozova, R. Reinthal, Elena Pian, M. G. Nikolashvili, M. Tavani, G. A. Borman, P. W. Cattaneo, A. Sillanpää, A. A. Arkharov, L. Maraschi, N. V. Efimova, Givi N. Kimeridze, E. Del Monte, F. Longo, G. Pucella, C. Pittori, K. Nilsson, A. Pellizzoni, E. Striani, V. Vittorini, Marc Türler, V. Bianchin, M. Rapisarda, A. Giuliani, Carlo Ferrigno, P. Soffitta, S. V. Nazarov, Hugh D. Aller, G. Barbiellini, R. A. Chigladze, E. Lindfors, Arnaud Ferrari, F. Verrecchia, S. Sabatini, M. Pilia, M. Villata, M. Giusti, F. Fuschino, Andrei Berdyugin, Uwe Bach, I. Agudo, L. O. Takalo, A. W. Chen, Brian W. Taylor, P. Giommi, Omar M. Kurtanidze, S. N. Molina, J. A. Ros, G. Piano, Stephanie Sallum, M. Feroci, Andrea Bulgarelli, T. Sakamoto, Yu. S. Efimov, P. Romano, S. Vercellone, L. Pacciani, Mariateresa Fiocchi, A. Rappoldi, R. D. Schwartz
Since 2005, the blazar 3C 454.3 has shown remarkable flaring activity at all frequencies, and during the last four years it has exhibited more than one gamma-ray flare per year, becoming the most active gamma-ray blazar in the sky. We present for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::137f7e03672f5d957e25f3a67599127f
http://hdl.handle.net/11368/2632340
http://hdl.handle.net/11368/2632340
Autor:
Dmitry A. Blinov, José L. Gómez, Vladimir A. Hagen-Thorn, Givi N. Kimeridze, Sofia O. Kurtanidze, Merja Tornikoski, Jeremy D. Maune, Ivan Agudo, Stephanie Sallum, Terri L. Scott, Dirk Grupe, Maria G. Nikolashvili, Omar M. Kurtanidze, Mark Gurwell, Tatiana S. Konstantinova, K. Blumenthal, Sigua A. Lorand, R. A. Chigladze, Karen E. Williamson, Manasvita Joshi, Ivan S. Troitsky, Carolina Casadio, Anne Lähteenmäki, Daria A. Morozova, V. Strelnitski, G. Walker, Svetlana G. Jorstad, Alan P. Marscher, Valeri M. Larionov, Brian W. Taylor, Gary D. Schmidt, Evgenia N. Kopatskaya, Ian M. McHardy, Sol N. Molina, Clemens Thum, Natatia V. Efimova, H. Richard Miller, Elena G. Larionova, Joseph R. Eggen, Arkady A. Arkharov, Paul S. Smith, Ann E. Wehrle, L. V. Larionova, Nicholas R. MacDonald, Santina Consiglio
Publikováno v:
The Astrophysical Journal. 773:147
We analyze the multifrequency behavior of the quasar 3C 454.3 during three prominent \gamma-ray outbursts: 2009 Autumn, 2010 Spring, and 2010 Autumn. The data reveal a repeating pattern, including a triple flare structure, in the properties of each \
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45a115cb12a62db52606ee55fb0d3e1c
https://doi.org/10.1088/0004-637x/773/2/147
https://doi.org/10.1088/0004-637x/773/2/147
