24 results on '"Sokolovsky, K. V."'
Search Results
2. RadioAstron reveals a spine-sheath jet structure in 3C 273
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Bruni, G., primary, Gómez, J. L., additional, Vega-García, L., additional, Lobanov, A. P., additional, Fuentes, A., additional, Savolainen, T., additional, Kovalev, Y. Y., additional, Perucho, M., additional, Martí, J.-M., additional, Anderson, J. M., additional, Edwards, P. G., additional, Gurvits, L. I., additional, Lisakov, M. M., additional, Pushkarev, A. B., additional, Sokolovsky, K. V., additional, and Zensus, J. A., additional
- Published
- 2021
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3. Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron
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Pötzl, F. M., primary, Lobanov, A. P., additional, Ros, E., additional, Gómez, J. L., additional, Bruni, G., additional, Bach, U., additional, Fuentes, A., additional, Gurvits, L. I., additional, Jauncey, D. L., additional, Kovalev, Y. Y., additional, Kravchenko, E. V., additional, Lisakov, M. M., additional, Savolainen, T., additional, Sokolovsky, K. V., additional, and Zensus, J. A., additional
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- 2021
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4. Localizing the γ-ray emitting region in the blazar TXS 2013+370
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Traianou, E., primary, Krichbaum, T. P., additional, Boccardi, B., additional, Angioni, R., additional, Rani, B., additional, Liu, J., additional, Ros, E., additional, Bach, U., additional, Sokolovsky, K. V., additional, Lisakov, M. M., additional, Kiehlmann, S., additional, Gurwell, M., additional, and Zensus, J. A., additional
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- 2020
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5. The Hubble Catalog of Variables (HCV) (Corrigendum)
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Bonanos, A. Z., primary, Yang, M., additional, Sokolovsky, K. V., additional, Gavras, P., additional, Hatzidimitriou, D., additional, Bellas-Velidis, I., additional, Kakaletris, G., additional, Lennon, D. J., additional, Nota, A., additional, White, R. L., additional, Whitmore, B. C., additional, Anastasiou, K. A., additional, Arévalo, M., additional, Arviset, C., additional, Baines, D., additional, Budavari, T., additional, Charmandaris, V., additional, Chatzichristodoulou, C., additional, Dimas, E., additional, Durán, J., additional, Georgantopoulos, I., additional, Karampelas, A., additional, Laskaris, N., additional, Lianou, S., additional, Livanis, A., additional, Lubow, S., additional, Manouras, G., additional, Moretti, M. I., additional, Paraskeva, E., additional, Pouliasis, E., additional, Rest, A., additional, Salgado, J., additional, Sonnentrucker, P., additional, Spetsieri, Z. T., additional, Taylor, P., additional, and Tsinganos, K., additional
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- 2019
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6. Analyzing polarization swings in 3C 279
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Kiehlmann S., Savolainen T., Jorstad S. G., Sokolovsky K. V., Schinzel F. K., Agudo I., Arkharov A. A., Benítez E., Berdyugin A., Blinov D. A., Bochkarev N. G., Borman G. A., Burenkov A. N., Casadio C., Doroshenko V. T., Efimova N. V., Fukazawa Y., Gómez J. L., Hagen-Thorn V. A., Heidt J., Hiriart D., Itoh R., Joshi M., Kimeridze G. N., Konstantinova T. S., Kopatskaya E. N., Korobtsev I. V., Kovalev Y. Y., Krajci T., Kurtanidze O., Kurtanidze S. O., Larionov V. M., Larionova E. G., Larionova L. V., Lindfors E., López E., Marscher A. P., McHardy I. M., Molina S. N., Morozova D. A., Nazarov S.V., Nikolashvili M. G., Nilsson K., Pulatova N. G., Reinthal R., Sadun A., Sergeev S. G., Sigua L. A., Sorcia M., Spiridonova O. I., Takalo L. O., Taylor B., Troitsky I. S., Ugolkova L. S., Zensus J. A., and Zhdanova V. E.
- Subjects
Physics ,QC1-999 - Abstract
Quasar 3C 279 is known to exhibit episodes of optical polarization angle rotation. We present new, well-sampled optical polarization data for 3C 279 and introduce a method to distinguish between random and deterministic electric vector position angle (EVPA) variations. We observe EVPA rotations in both directions with different amplitudes and find that the EVPA variation shows characteristics of both random and deterministic cases. Our analysis indicates that the EVPA variation is likely dominated by a random process in the low brightness state of the jet and by a deterministic process in the flaring state.
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- 2013
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7. Discovery and follow-up of the unusual nuclear transient OGLE17aaj
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Gromadzki, M., primary, Hamanowicz, A., additional, Wyrzykowski, L., additional, Sokolovsky, K. V., additional, Fraser, M., additional, Kozłowski, Sz., additional, Guillochon, J., additional, Arcavi, I., additional, Trakhtenbrot, B., additional, Jonker, P. G., additional, Mattila, S., additional, Udalski, A., additional, Szymański, M. K., additional, Soszyński, I., additional, Poleski, R., additional, Pietrukowicz, P., additional, Skowron, J., additional, Mróz, P., additional, Ulaczyk, K., additional, Pawlak, M., additional, Rybicki, K. A., additional, Sollerman, J., additional, Taddia, F., additional, Kostrzewa-Rutkowska, Z., additional, Onori, F., additional, Young, D. R., additional, Maguire, K., additional, Smartt, S. J., additional, Inserra, C., additional, Gal-Yam, A., additional, Rau, A., additional, Chen, T.-W., additional, Angus, C. R., additional, and Buckley, D. A. H., additional
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- 2019
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8. Massive star population of the Virgo Cluster galaxy NGC4535
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Spetsieri, Z. T., primary, Bonanos, A. Z., additional, Kourniotis, M., additional, Yang, M., additional, Lianou, S., additional, Bellas-Velidis, I., additional, Gavras, P., additional, Hatzidimitriou, D., additional, Kopsacheili, M., additional, Moretti, M. I., additional, Nota, A., additional, Pouliasis, E., additional, and Sokolovsky, K. V., additional
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- 2018
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9. Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron
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Bruni, G., primary, Gómez, J. L., additional, Casadio, C., additional, Lobanov, A., additional, Kovalev, Y. Y., additional, Sokolovsky, K. V., additional, Lisakov, M. M., additional, Bach, U., additional, Marscher, A., additional, Jorstad, S., additional, Anderson, J. M., additional, Krichbaum, T. P., additional, Savolainen, T., additional, Vega-García, L., additional, Fuentes, A., additional, Zensus, J. A., additional, Alberdi, A., additional, Lee, S.-S., additional, Lu, R.-S., additional, Pérez-Torres, M., additional, and Ros, E., additional
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- 2017
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10. Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009
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Ahnen, M. L., primary, Ansoldi, S., additional, Antonelli, L. A., additional, Antoranz, P., additional, Babic, A., additional, Banerjee, B., additional, Bangale, P., additional, Barres de Almeida, U., additional, Barrio, J. A., additional, Becerra González, J., additional, Bednarek, W., additional, Bernardini, E., additional, Berti, A., additional, Biasuzzi, B., additional, Biland, A., additional, Blanch, O., additional, Bonnefoy, S., additional, Bonnoli, G., additional, Borracci, F., additional, Bretz, T., additional, Buson, S., additional, Carosi, A., additional, Chatterjee, A., additional, Clavero, R., additional, Colin, P., additional, Colombo, E., additional, Contreras, J. L., additional, Cortina, J., additional, Covino, S., additional, Da Vela, P., additional, Dazzi, F., additional, De Angelis, A., additional, De Lotto, B., additional, de Oña Wilhelmi, E., additional, Di Pierro, F., additional, Doert, M., additional, Domínguez, A., additional, Dominis Prester, D., additional, Dorner, D., additional, Doro, M., additional, Einecke, S., additional, Eisenacher Glawion, D., additional, Elsaesser, D., additional, Engelkemeier, M., additional, Fallah Ramazani, V., additional, Fernández-Barral, A., additional, Fidalgo, D., additional, Fonseca, M. V., additional, Font, L., additional, Frantzen, K., additional, Fruck, C., additional, Galindo, D., additional, García López, R. J., additional, Garczarczyk, M., additional, Garrido Terrats, D., additional, Gaug, M., additional, Giammaria, P., additional, Godinović, N., additional, González Muñoz, A., additional, Gora, D., additional, Guberman, D., additional, Hadasch, D., additional, Hahn, A., additional, Hanabata, Y., additional, Hayashida, M., additional, Herrera, J., additional, Hose, J., additional, Hrupec, D., additional, Hughes, G., additional, Idec, W., additional, Kodani, K., additional, Konno, Y., additional, Kubo, H., additional, Kushida, J., additional, La Barbera, A., additional, Lelas, D., additional, Lindfors, E., additional, Lombardi, S., additional, Longo, F., additional, López, M., additional, López-Coto, R., additional, Majumdar, P., additional, Makariev, M., additional, Mallot, K., additional, Maneva, G., additional, Manganaro, M., additional, Mannheim, K., additional, Maraschi, L., additional, Marcote, B., additional, Mariotti, M., additional, Martínez, M., additional, Mazin, D., additional, Menzel, U., additional, Miranda, J. M., additional, Mirzoyan, R., additional, Moralejo, A., additional, Moretti, E., additional, Nakajima, D., additional, Neustroev, V., additional, Niedzwiecki, A., additional, Nievas Rosillo, M., additional, Nilsson, K., additional, Nishijima, K., additional, Noda, K., additional, Nogués, L., additional, Overkemping, A., additional, Paiano, S., additional, Palacio, J., additional, Palatiello, M., additional, Paneque, D., additional, Paoletti, R., additional, Paredes, J. M., additional, Paredes-Fortuny, X., additional, Pedaletti, G., additional, Peresano, M., additional, Perri, L., additional, Persic, M., additional, Poutanen, J., additional, Prada Moroni, P. G., additional, Prandini, E., additional, Puljak, I., additional, Reichardt, I., additional, Rhode, W., additional, Ribó, M., additional, Rico, J., additional, Rodriguez Garcia, J., additional, Saito, T., additional, Satalecka, K., additional, Schröder, S., additional, Schultz, C., additional, Schweizer, T., additional, Shore, S. N., additional, Sillanpää, A., additional, Sitarek, J., additional, Snidaric, I., additional, Sobczynska, D., additional, Stamerra, A., additional, Steinbring, T., additional, Strzys, M., additional, Surić, T., additional, Takalo, L., additional, Tavecchio, F., additional, Temnikov, P., additional, Terzić, T., additional, Tescaro, D., additional, Teshima, M., additional, Thaele, J., additional, Torres, D. F., additional, Toyama, T., additional, Treves, A., additional, Vanzo, G., additional, Verguilov, V., additional, Vovk, I., additional, Ward, J. E., additional, Will, M., additional, Wu, M. H., additional, Zanin, R., additional, Abeysekara, A. U., additional, Archambault, S., additional, Archer, A., additional, Benbow, W., additional, Bird, R., additional, Buchovecky, M., additional, Buckley, J. H., additional, Bugaev, V., additional, Connolly, M. P., additional, Cui, W., additional, Dickinson, H. J., additional, Falcone, A., additional, Feng, Q., additional, Finley, J. P., additional, Fleischhack, H., additional, Flinders, A., additional, Fortson, L., additional, Gillanders, G. H., additional, Griffin, S., additional, Grube, J., additional, Hütten, M., additional, Hanna, D., additional, Holder, J., additional, Humensky, T. B., additional, Kaaret, P., additional, Kar, P., additional, Kelley-Hoskins, N., additional, Kertzman, M., additional, Kieda, D., additional, Krause, M., additional, Krennrich, F., additional, Lang, M. J., additional, Maier, G., additional, McCann, A., additional, Moriarty, P., additional, Mukherjee, R., additional, Nieto, D., additional, O’Brien, S., additional, Ong, R. A., additional, Otte, N., additional, Park, N., additional, Perkins, J., additional, Pichel, A., additional, Pohl, M., additional, Popkow, A., additional, Pueschel, E., additional, Quinn, J., additional, Ragan, K., additional, Reynolds, P. T., additional, Richards, G. T., additional, Roache, E., additional, Rovero, A. C., additional, Rulten, C., additional, Sadeh, I., additional, Santander, M., additional, Sembroski, G. H., additional, Shahinyan, K., additional, Telezhinsky, I., additional, Tucci, J. V., additional, Tyler, J., additional, Wakely, S. P., additional, Weinstein, A., additional, Wilcox, P., additional, Wilhelm, A., additional, Williams, D. A., additional, Zitzer, B., additional, Razzaque, S., additional, Villata, M., additional, Raiteri, C. M., additional, Aller, H. D., additional, Aller, M. F., additional, Larionov, V. M., additional, Arkharov, A. A., additional, Blinov, D. A., additional, Efimova, N. V., additional, Grishina, T. S., additional, Hagen-Thorn, V. A., additional, Kopatskaya, E. N., additional, Larionova, L. V., additional, Larionova, E. G., additional, Morozova, D. A., additional, Troitsky, I. S., additional, Ligustri, R., additional, Calcidese, P., additional, Berdyugin, A., additional, Kurtanidze, O. M., additional, Nikolashvili, M. G., additional, Kimeridze, G. N., additional, Sigua, L. A., additional, Kurtanidze, S. O., additional, Chigladze, R. A., additional, Chen, W. P., additional, Koptelova, E., additional, Sakamoto, T., additional, Sadun, A. C., additional, Moody, J. W., additional, Pace, C., additional, Pearson, R., additional, Yatsu, Y., additional, Mori, Y., additional, Carraminyana, A., additional, Carrasco, L., additional, de la Fuente, E., additional, Norris, J. P., additional, Smith, P. S., additional, Wehrle, A., additional, Gurwell, M. A., additional, Zook, A., additional, Pagani, C., additional, Perri, M., additional, Capalbi, M., additional, Cesarini, A., additional, Krimm, H. A., additional, Kovalev, Y. Y., additional, Kovalev, Yu. A., additional, Ros, E., additional, Pushkarev, A. B., additional, Lister, M. L., additional, Sokolovsky, K. V., additional, Kadler, M., additional, Piner, G., additional, Lähteenmäki, A., additional, Tornikoski, M., additional, Angelakis, E., additional, Krichbaum, T. P., additional, Nestoras, I., additional, Fuhrmann, L., additional, Zensus, J. A., additional, Cassaro, P., additional, Orlati, A., additional, Maccaferri, G., additional, Leto, P., additional, Giroletti, M., additional, Richards, J. L., additional, Max-Moerbeck, W., additional, and Readhead, A. C. S., additional
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- 2017
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11. Polarization angle swings in blazars: The case of 3C 279(Corrigendum)
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Kiehlmann, S., primary, Savolainen, T., additional, Jorstad, S. G., additional, Sokolovsky, K. V., additional, Schinzel, F. K., additional, Marscher, A. P., additional, Larionov, V. M., additional, Agudo, I., additional, Akitaya, H., additional, Benítez, E., additional, Berdyugin, A., additional, Blinov, D. A., additional, Bochkarev, N. G., additional, Borman, G. A., additional, Burenkov, A. N., additional, Casadio, C., additional, Doroshenko, V. T., additional, Efimova, N. V., additional, Fukazawa, Y., additional, Gómez, J. L., additional, Grishina, T. S., additional, Hagen-Thorn, V. A., additional, Heidt, J., additional, Hiriart, D., additional, Itoh, R., additional, Joshi, M., additional, Kawabata, K. S., additional, Kimeridze, G. N., additional, Kopatskaya, E. N., additional, Korobtsev, I. V., additional, Krajci, T., additional, Kurtanidze, O. M., additional, Kurtanidze, S. O., additional, Larionova, E. G., additional, Larionova, L. V., additional, Lindfors, E., additional, López, J. M., additional, McHardy, I. M., additional, Molina, S. N., additional, Moritani, Y., additional, Morozova, D. A., additional, Nazarov, S. V., additional, Nikolashvili, M. G., additional, Nilsson, K., additional, Pulatova, N. G., additional, Reinthal, R., additional, Sadun, A., additional, Sasada, M., additional, Savchenko, S. S., additional, Sergeev, S. G., additional, Sigua, L. A., additional, Smith, P. S., additional, Sorcia, M., additional, Spiridonova, O. I., additional, Takaki, K., additional, Takalo, L. O., additional, Taylor, B., additional, Troitsky, I. S., additional, Uemura, M., additional, Ugolkova, L. S., additional, Ui, T., additional, Yoshida, M., additional, Zensus, J. A., additional, and Zhdanova, V. E., additional
- Published
- 2016
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12. RadioAstron space VLBI imaging of polarized radio emission in the high-redshift quasar 0642+449 at 1.6 GHz
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Lobanov, A. P., primary, Gómez, J. L., additional, Bruni, G., additional, Kovalev, Y. Y., additional, Anderson, J., additional, Bach, U., additional, Kraus, A., additional, Zensus, J. A., additional, Lisakov, M. M., additional, Sokolovsky, K. V., additional, and Voytsik, P. A., additional
- Published
- 2015
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13. Very Long Baseline polarimetry and theγ-ray connection in Markarian 421 during the broadband campaign in 2011
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Lico, R., primary, Giroletti, M., additional, Orienti, M., additional, Gómez, J. L., additional, Casadio, C., additional, D’Ammando, F., additional, Blasi, M. G., additional, Cotton, W., additional, Edwards, P. G., additional, Fuhrmann, L., additional, Jorstad, S., additional, Kino, M., additional, Kovalev, Y. Y., additional, Krichbaum, T. P., additional, Marscher, A. P., additional, Paneque, D., additional, Piner, B. G., additional, and Sokolovsky, K. V., additional
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- 2014
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14. Two active states of the narrow-line gamma-ray-loud AGN GB 1310+487
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Sokolovsky, K. V., primary, Schinzel, F. K., additional, Tanaka, Y. T., additional, Abolmasov, P. K., additional, Angelakis, E., additional, Bulgarelli, A., additional, Carrasco, L., additional, Cenko, S. B., additional, Cheung, C. C., additional, Clubb, K. I., additional, D’Ammando, F., additional, Escande, L., additional, Fegan, S. J., additional, Filippenko, A. V., additional, Finke, J. D., additional, Fuhrmann, L., additional, Fukazawa, Y., additional, Hays, E., additional, Healey, S. E., additional, Ikejiri, Y., additional, Itoh, R., additional, Kawabata, K. S., additional, Komatsu, T., additional, Kovalev, Yu. A., additional, Kovalev, Y. Y., additional, Krichbaum, T. P., additional, Larsson, S., additional, Lister, M. L., additional, Lott, B., additional, Max-Moerbeck, W., additional, Nestoras, I., additional, Pittori, C., additional, Pursimo, T., additional, Pushkarev, A. B., additional, Readhead, A. C. S., additional, Recillas, E., additional, Richards, J. L., additional, Riquelme, D., additional, Romani, R. W., additional, Sakimoto, K., additional, Sasada, M., additional, Schmidt, R., additional, Shaw, M. S., additional, Sievers, A., additional, Thompson, D. J., additional, Uemura, M., additional, Ungerechts, H., additional, Vercellone, S., additional, Verrecchia, F., additional, Yamanaka, M., additional, Yoshida, M., additional, and Zensus, J. A., additional
- Published
- 2014
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15. The TeV blazar Markarian 421 at the highest spatial resolution
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Blasi, M. G., primary, Lico, R., additional, Giroletti, M., additional, Orienti, M., additional, Giovannini, G., additional, Cotton, W., additional, Edwards, P. G., additional, Fuhrmann, L., additional, Krichbaum, T. P., additional, Kovalev, Y. Y., additional, Jorstad, S., additional, Marscher, A., additional, Kino, M., additional, Paneque, D., additional, Perez-Torres, M. A., additional, Piner, B. G., additional, and Sokolovsky, K. V., additional
- Published
- 2013
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16. The simultaneous low state spectral energy distribution of 1ES 2344+514 from radio to very high energies
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Aleksić, J., primary, Antonelli, L. A., additional, Antoranz, P., additional, Asensio, M., additional, Backes, M., additional, Barres de Almeida, U., additional, Barrio, J. A., additional, Bednarek, W., additional, Berger, K., additional, Bernardini, E., additional, Biland, A., additional, Blanch, O., additional, Bock, R. K., additional, Boller, A., additional, Bonnefoy, S., additional, Bonnoli, G., additional, Borla Tridon, D., additional, Bretz, T., additional, Carmona, E., additional, Carosi, A., additional, Carreto Fidalgo, D., additional, Colin, P., additional, Colombo, E., additional, Contreras, J. L., additional, Cortina, J., additional, Cossio, L., additional, Covino, S., additional, Da Vela, P., additional, Dazzi, F., additional, De Angelis, A., additional, De Caneva, G., additional, De Lotto, B., additional, Delgado Mendez, C., additional, Doert, M., additional, Domínguez, A., additional, Dominis Prester, D., additional, Dorner, D., additional, Doro, M., additional, Eisenacher, D., additional, Elsaesser, D., additional, Ferenc, D., additional, Fonseca, M. V., additional, Font, L., additional, Fruck, C., additional, García López, R. J., additional, Garczarczyk, M., additional, Garrido Terrats, D., additional, Gaug, M., additional, Giavitto, G., additional, Godinović, N., additional, González Muñoz, A., additional, Gozzini, S. R., additional, Hadamek, A., additional, Hadasch, D., additional, Herrero, A., additional, Hose, J., additional, Hrupec, D., additional, Jankowski, F., additional, Kadenius, V., additional, Klepser, S., additional, Knoetig, M. L., additional, Krähenbühl, T., additional, Krause, J., additional, Kushida, J., additional, La Barbera, A., additional, Lelas, D., additional, Leonardo, E., additional, Lewandowska, N., additional, Lindfors, E., additional, Lombardi, S., additional, López, M., additional, López-Coto, R., additional, López-Oramas, A., additional, Lorenz, E., additional, Lozano, I., additional, Makariev, M., additional, Mallot, K., additional, Maneva, G., additional, Mankuzhiyil, N., additional, Mannheim, K., additional, Maraschi, L., additional, Marcote, B., additional, Mariotti, M., additional, Martínez, M., additional, Masbou, J., additional, Mazin, D., additional, Meucci, M., additional, Miranda, J. M., additional, Mirzoyan, R., additional, Moldón, J., additional, Moralejo, A., additional, Munar-Adrover, P., additional, Nakajima, D., additional, Niedzwiecki, A., additional, Nieto, D., additional, Nilsson, K., additional, Nowak, N., additional, Orito, R., additional, Paiano, S., additional, Palatiello, M., additional, Paneque, D., additional, Paoletti, R., additional, Paredes, J. M., additional, Partini, S., additional, Persic, M., additional, Pilia, M., additional, Prada, F., additional, Prada Moroni, P. G., additional, Prandini, E., additional, Puljak, I., additional, Reichardt, I., additional, Reinthal, R., additional, Rhode, W., additional, Ribó, M., additional, Rico, J., additional, Rügamer, S., additional, Saggion, A., additional, Saito, K., additional, Saito, T. Y., additional, Salvati, M., additional, Satalecka, K., additional, Scalzotto, V., additional, Scapin, V., additional, Schultz, C., additional, Schweizer, T., additional, Shore, S. N., additional, Sillanpää, A., additional, Sitarek, J., additional, Snidaric, I., additional, Sobczynska, D., additional, Spanier, F., additional, Spiro, S., additional, Stamatescu, V., additional, Stamerra, A., additional, Steinke, B., additional, Storz, J., additional, Sun, S., additional, Surić, T., additional, Takalo, L., additional, Takami, H., additional, Tavecchio, F., additional, Temnikov, P., additional, Terzić, T., additional, Tescaro, D., additional, Teshima, M., additional, Tibolla, O., additional, Torres, D. F., additional, Toyama, T., additional, Treves, A., additional, Uellenbeck, M., additional, Vogler, P., additional, Wagner, R. M., additional, Weitzel, Q., additional, Zandanel, F., additional, Zanin, R., additional, Longo, F., additional, Lucarelli, F., additional, Pittori, C., additional, Vercellone, S., additional, Bastieri, D., additional, Sbarra, C., additional, Angelakis, E., additional, Fuhrmann, L., additional, Nestoras, I., additional, Krichbaum, T. P., additional, Sievers, A., additional, Zensus, J. A., additional, Antonyuk, K. A., additional, Baumgartner, W., additional, Berduygin, A., additional, Carini, M., additional, Cook, K., additional, Gehrels, N., additional, Kadler, M., additional, Kovalev, Yu. A., additional, Kovalev, Y. Y., additional, Krauss, F., additional, Krimm, H. A., additional, Lähteenmäki, A., additional, Lister, M. L., additional, Max-Moerbeck, W., additional, Pasanen, M., additional, Pushkarev, A. B., additional, Readhead, A. C. S., additional, Richards, J. L., additional, Sainio, J., additional, Shakhovskoy, D. N., additional, Sokolovsky, K. V., additional, Tornikoski, M., additional, Tueller, J., additional, Weidinger, M., additional, and Wilms, J., additional
- Published
- 2013
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17. VLBA monitoring of Mrk 421 at 15 GHz and 24 GHz during 2011
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Lico, R., primary, Giroletti, M., additional, Orienti, M., additional, Giovannini, G., additional, Cotton, W., additional, Edwards, P. G., additional, Fuhrmann, L., additional, Krichbaum, T. P., additional, Sokolovsky, K. V., additional, Kovalev, Y. Y., additional, Jorstad, S., additional, Marscher, A., additional, Kino, M., additional, Paneque, D., additional, Perez-Torres, M. A., additional, and Piner, G., additional
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- 2012
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18. Very Long Baseline Polarimetric monitoring at 15 GHz of the TeV blazar Markarian 421.
- Author
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Lico, R., Casadio, C., Gómez, J. L., Giroletti, M., Orienti, M., Giovannini, G., Blasi, M. G., Cotton, W., Edwards, P. G., Fuhrmann, L., Jorstad, S., Kino, M., Kovalev, Y. Y., Krichbaum, T. P., Marscher, A., Paneque, D., Perez-Torres, M. A., Piner, G., and Sokolovsky, K. V.
- Subjects
ACTIVE galactic nuclei ,FLUX (Energy) ,OPTICAL polarization ,GAMMA rays - Abstract
Thanks to high resolution radio observations it is possible to obtain a direct imaging of the innermost regions of Active Galactic Nuclei; in particular, it is possible to investigate about the jet's morphology and any proper motions, and the time evolution of physical parameters, such as flux densities and spectral index. Furthermore, with the study of the polarization properties, it is possible to obtain important information about the magnetic field structure and the emission mechanisms. In this work we present recent results about the nearby (z=0.031) TeV blazar Mrk 421. We analyzed data obtained with the Very Long Baseline Array (VLBA), both in total and polarized intensity, at twelve epochs (one observation per month from January to December 2011) at 15, 24 and 43 GHz, in the context of a broadband campaign from the radio to gamma-ray. We investigate the inner jet structure on parsec scale through the study of model-fit components for each epoch. At these frequencies the source shows a compact (about 0.13 mas, or 0.08 pc) and bright component, with a one sided jet detected out to about 10 mas. All model-fit components in the jet appear to be almost stationary during our observation period, and the spectral index is fairly flat in the core region and steepens along the jet's length. In particular, we present a preliminary study of the polarization properties for the 15 GHz dataset: we found a degree of polarization of ~ 1 % for the core region and for the C3 component, at near 1 mas from the core, we found a value of near 14%. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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19. VLBI-selected sample of compact symmetric object candidates and frequency-dependent position of hotspots
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Sokolovsky, K. V., primary, Kovalev, Y. Y., additional, Pushkarev, A. B., additional, Mimica, P., additional, and Perucho, M., additional
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- 2011
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20. Identification ofγ-ray emission from 3C 345 and NRAO 512
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Schinzel, F. K., primary, Sokolovsky, K. V., additional, D’Ammando, F., additional, Burnett, T. H., additional, Max-Moerbeck, W., additional, Cheung, C. C., additional, Fegan, S. J., additional, Casandjian, J. M., additional, Reyes, L. C., additional, Villata, M., additional, Raiteri, C. M., additional, Agudo, I., additional, Bravo Calle, O. J. A., additional, Carosati, D., additional, Casas, R., additional, Gómez, J. L., additional, Gurwell, M. A., additional, Hsiao, H. Y., additional, Jorstad, S. G., additional, Kimeridze, G., additional, Konstantinova, T. S., additional, Kopatskaya, E. N., additional, Koptelova, E., additional, Kurtanidze, O. M., additional, Kurtanidze, S. O., additional, Larionov, V. M., additional, Larionova, E. G., additional, Larionova, L. V., additional, Marscher, A. P., additional, Morozova, D. A., additional, Nikolashvili, M. G., additional, Roca-Sogorb, M., additional, Ros, J. A., additional, Sigua, L. A., additional, Spiridonova, O., additional, Troitsky, I. S., additional, Vlasyuk, V. V., additional, Lobanov, A. P., additional, and Zensus, J. A., additional
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- 2011
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21. A VLBA survey of the core shift effect in AGN jets
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Sokolovsky, K. V., primary, Kovalev, Y. Y., additional, Pushkarev, A. B., additional, and Lobanov, A. P., additional
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- 2011
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22. Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004
- Author
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Rastorgueva, E. A., primary, Wiik, K., additional, Savolainen, T., additional, Takalo, L. O., additional, Valtaoja, E., additional, Vetukhnovskaya, Y. N., additional, and Sokolovsky, K. V., additional
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- 2008
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23. Very Long Baseline polarimetry and the γ-ray connection in Markarian 421 during the broadband campaign in 2011.
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Giroletti, M., Lico, R., Orienti, M., D'Ammando, F., Blasi, M. G., Kino, M., Sokolovsky, K. V., Kovalev, Y. Y., Paneque, D., Piner, B. G., Gómez, J. L., Casadio, C., Cotton, W., Edwards, P. G., Fuhrmann, L., Krichbaum, T. P., Marscher, A. P., and Jorstad, S.
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LIGHT curves ,TOPOLOGY ,ACTIVE galaxies ,ASTROPHYSICS ,ASTRONOMY - Abstract
Conte×t. This is the third paper in a series devoted to the analysis of the multiwavelength data from a campaign on the nearby (z = 0.03) TeV blazar Mrk 421 during 2011. Aims. We investigate the structure of the high angular resolution polarization, the magnetic topology, the total intensity light curve, the γ-ray flu×, and the photon inde×. We describe how they evolve and how they are connected. Methods. We analyzed data in polarized intensity obtained with the Very Long Baseline Array (VLBA) at twelve epochs (one observation per month from January to December 2011) at 15, 24, and 43 GHz. For the absolute orientation of the electric vector position angles (EVPA) we used the D-terms method; we also confirm its accuracy. We also used γ-ray data from the Fermi Large Area Telescope on weekly time bins throughout 2011. Results. The source shows polarized emission, and its properties vary with time, frequency, and location along the jet. The core mean polarization fraction is generally between 1% and 2%, with a 4% peak at 43 GHz in March; the polarization angle is variable, mainly at 15 GHz, where it changes frequently, and less so at 43 GHz, where it oscillates in the range 114°-173°∘. The jet polarization properties are more stable, with a fractional polarization of around 16% and a polarization angle nearly perpendicular to the jet a×is. The average flu× and photon inde× at γ-ray energies are (17.4 ± 0.5) ×10
-8 ph cm-2 s-1 and Γ = 1.77 ± 0.02. The γ-ray light curve shows variability, with a main peak of (38 ± 11) × 10-8 ph cm-2 s-1 at the beginning of March and two later peaks centered on September 8 and November 13. The first γ-ray peak appears to be associated with the peak in the core polarized emission at 43 GHz, as well as with the total intensity light curve. A discrete correlation function analysis yields a correlation coefficient of 0.54 at zero delay, with a significance level >99.7%. Conclusions. With this multifrequency study, we accurately determine the polarization properties of Mrk 421, both in the core and in the jet region. The radio and γ-ray light curves are correlated. The observed EVPA variability at 15 GHz is partly due to opacity and partly to a variable Faraday rotation effect. To e×plain the residual variability of the intrinsic polarization angle and the low degree of polarization in the core region, we invoke a blend of variable cross-polarized subcomponents with different polarization properties within the beam. [ABSTRACT FROM AUTHOR]- Published
- 2014
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24. Very Long Baseline polarimetry and theγ-ray connection in Markarian 421 during the broadband campaign in 2011
- Author
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B. G. Piner, Lars Fuhrmann, David Paneque, W. D. Cotton, Alan P. Marscher, M. G. Blasi, Rocco Lico, Yuri Y. Kovalev, Philip G. Edwards, J. L. Gomez, Carolina Casadio, M. Orienti, Motoki Kino, Marcello Giroletti, Thomas P. Krichbaum, Filippo D'Ammando, Kirill Sokolovsky, S. G. Jorstad, Lico, R., Giroletti, M., Orienti, M., Gómez, J. L., Casadio, C., D’Ammando, F., Blasi, M. G., Cotton, W., Edwards, P. G., Fuhrmann, L., Jorstad, S., Kino, M., Kovalev, Y. Y., Krichbaum, T. P., Marscher, A. P., Paneque, D., Piner, B. G., and Sokolovsky, K. V.
- Subjects
Opacity ,Astrophysics::High Energy Astrophysical Phenomena ,Polarimetry ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,7. Clean energy ,symbols.namesake ,Broadband ,Faraday effect ,Baseline (configuration management) ,Blazar ,Very Long Baseline Array ,High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,Brewster's angle ,Gamma ray ,Astronomy and Astrophysics ,BL Lacertae objects: individual: Mrk 421, galaxies: active, galaxies: jets, galaxies: magnetic fields, techniques: interferometric ,Light curve ,Polarization (waves) ,Connection (mathematics) ,13. Climate action ,Space and Planetary Science ,symbols ,Degree of polarization ,Astrophysics - High Energy Astrophysical Phenomena - Abstract
We analyzed data in polarized intensity obtained with the Very Long Baseline Array (VLBA) at twelve epochs (one observation per month from January to December 2011) at 15, 24, and 43 GHz. For the absolute orientation of the electric vector position angles (EVPA) we used the D-terms method. We also used gamma-ray data from the Fermi Large Area Telescope on weekly time bins throughout 2011. The source shows polarized emission, and its properties vary with time, frequency, and location along the jet. The core mean polarization fraction is generally between 1% and 2%, with a 4% peak at 43 GHz in March; the polarization angle is variable, mainly at 15 GHz, where it changes frequently, and less so at 43 GHz, where it oscillates in the range 114 - 173 deg. The jet polarization properties are more stable, with a fractional polarization of around 16% and a polarization angle nearly perpendicular to the jet axis. The average flux and photon index at gamma-ray energies are (17.7+-0.5)x10^8 ph cm^-2 s^-1 and the photon index is 1.77+-0.02. The gamma-ray light curve shows variability, with a main peak that appears to be associated with the peak in the core polarized emission at 43 GHz, as well as with the total intensity light curve. A discrete correlation function analysis yields a correlation coefficient of 0.54 at zero delay, with a significance level above 99.7%. We accurately determine the polarization properties of Mrk 421, both in the core and in the jet region. The radio and gamma-ray light curves are correlated. The observed EVPA variability at 15 GHz is partly due to opacity and partly to a variable Faraday rotation effect. To explain the residual variability of the intrinsic polarization angle and the low degree of polarization in the core region, we invoke a blend of variable cross-polarized subcomponents with different polarization properties within the beam., 13 pages
- Published
- 2014
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