Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Nestoras, I"'
Autor:
Angelakis, E., Fuhrmann, L., Myserlis, I., Zensus, J. A., Nestoras, I., Karamanavis, V., Marchili, N., Krichbaum, T. P., Kraus, A., Rachen, J. P.
The advent of the Fermi-GST with its unprecedented capability to monitor the entire 4 pi sky within less than 2-3 hours, introduced new standard in time domain gamma-ray astronomy. To explore this new avenue of extragalactic physics the F-GAMMA progr
Externí odkaz:
http://arxiv.org/abs/1902.04404
Autor:
Liodakis, I., Pavlidou, V., Papadakis, I., Angelakis, E., Marchili, N., Zensus, J. A., Fuhrmann, L., Karamanavis, V., Myserlis, I., Nestoras, I., Palaiologou, E., Readhead, A. C. S.
Black holes, anywhere in the stellar-mass to supermassive range, are often associated with relativistic jets. Models suggest that jet production may be a universal process common in all black hole systems regardless of their mass. Although in many ca
Externí odkaz:
http://arxiv.org/abs/1711.03979
Autor:
Liodakis, I., Marchili, N., Angelakis, E., Fuhrmann, L., Nestoras, I., Myserlis, I., Karamanavis, V., Krichbaum, T. P., Sievers, A., Ungerechts, H., Zensus, J. A.
Recent population studies have shown that the variability Doppler factors can adequately describe blazars as a population. We use the flux density variations found within the extensive radio multi-wavelength datasets of the F-GAMMA program, a total o
Externí odkaz:
http://arxiv.org/abs/1701.01452
Autor:
Ahnen, M. L., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Banerjee, B., Bangale, P., de Almeida, U. Barres, Barrio, J. A., González, J. Becerra, Bednarek, W., Bernardini, E., Berti, A., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Buson, S., Carosi, A., Chatterjee, A., Clavero, R., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Wilhelmi, E. de Ona, Di Pierro, F., Doert, M., Domínguez, A., Prester, D. Dominis, Dorner, D., Doro, M., Einecke, S., Glawion, D. Eisenacher, Elsaesser, D., Engelkemeier, M., Ramazani, V. Fallah, Fernández-Barral, A., Fidalgo, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., López, R. J. García, Garczarczyk, M., Terrats, D. Garrido, Gaug, M., Giammaria, P., Godinović, N., Munoz, A. González, Gora, D., Guberman, D., Hadasch, D., Hahn, A., Hanabata, Y., Hayashida, M., Herrera, J., Hose, J., Hrupec, D., Hughes, G., Idec, W., Kodani, K., Konno, Y., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lindfors, E., Lombardi, S., Longo, F., López, M., López-Coto, R., Majumdar, P., Makariev, M., Mallot, K., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Moretti, E., Nakajima, D., Neustroev, V., Niedzwiecki, A., Rosillo, M. Nievas, Nilsson, K., Nishijima, K., Noda, K., Nogués, L., Overkemping, A., Paiano, S., Palacio, J., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Pedaletti, G., Peresano, M., Perri, L., Persic, M., Poutanen, J., Moroni, P. G. Prada, Prandini, E., Puljak, I., Reichardt, I., Rhode, W., Ribó, M., Rico, J., Garcia, J. Rodriguez, Saito, T., Satalecka, K., Schröder, S., Schultz, C., Schweizer, T., Shore, S. N., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Stamerra, A., Steinbring, T., Strzys, M., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Torres, D. F., Toyama, T., Treves, A., Vanzo, G., Verguilov, V., Vovk, I., Ward, J. E., Will, M., Wu, M. H., Zanin, R., Abeysekara, A. U., Archambault, S., Archer, A., Benbow, W., Bird, R., Buchovecky, M., Buckley, J. H., Bugaev, V., Connolly, M. P., Cui, W., Dickinson, H. J., Falcone, A., Feng, Q., Finley, J. P., Fleischhack, H., Flinders, A., Fortson, L., Gillanders, G. H., Griffin, S., Grube, J., Hütten, M., Hanna, D., Holder, J., Humensky, T. B., Kaaret, P., Kar, P., Kelley-Hoskins, N., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Maier, G., McCann, A., Moriarty, P., Mukherjee, R., Nieto, D., O'Brien, S., Ong, R. A., Otte, N., Park, N., Perkins, J., Pichel, A., Pohl, M., Popkow, A., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Richards, G. T., Roache, E., Rovero, A. C., Rulten, C., Sadeh, I., Santander, M., Sembroski, G. H., Shahinyan, K., Telezhinsky, I., Tucci, J. V., Tyler, J., Wakely, S. P., Weinstein, A., Wilcox, P., Wilhelm, A., Williams, D. A., Zitzer, B., Razzaque, S., Villata, M., Raiteri, C. M., Aller, H. D., Aller, M. F., Larionov, V. M., Arkharov, A. A., Blinov, D. A., Efimova, N. V., Grishina, T. S., Hagen-Thorn, V. A., Kopatskaya, E. N., Larionova, L. V., Larionova, E. G., Morozova, D. A., Troitsky, I. S., Ligustri, R., Calcidese, P., Berdyugin, A., Kurtanidze, O. M., Nikolashvili, M. G., Kimeridze, G. N., Sigua, L. A., Kurtanidze, S. O., Chigladze, R. A., Chen, W. P., Koptelova, E., Sakamoto, T., Sadun, A. C., Moody, J. W., Pace, C., Pearson III, R., Yatsu, Y., Mori, Y., Carraminyana, A., Carrasco, L., de la Fuente, E., Norris, J. P., Smith, P. S., Wehrle, A., Gurwell, M. A., Zook, Alma, Pagani, C., Perri, M., Capalbi, M., Cesarini, A., Krimm, H. A., Kovalev, Y. Y., Kovalev, Yu. A., Ros, E., Pushkarev, A. B., Lister, M. L., Sokolovsky, K. V., Kadler, M., Piner, G., Lähteenmäki, A., Tornikoski, M., Angelakis, E., Krichbaum, T. P., Nestoras, I., Fuhrmann, L, Zensus, J. A., Cassaro, P., Orlati, A., Maccaferri, G., Leto, P., Giroletti, M., Richards, J. L., Max-Moerbeck, W., Readhead, A. C. S.
Publikováno v:
A&A 603, A31 (2017)
We present an extensive study of the BL Lac object Mrk 501 based on a data set collected during the multi-instrument campaign spanning from 2009 March 15 to 2009 August 1 which includes, among other instruments, MAGIC, VERITAS, Whipple 10-m, Fermi-LA
Externí odkaz:
http://arxiv.org/abs/1612.09472
Autor:
Fuhrmann, L., Karamanavis, V., Komossa, S., Angelakis, E., Krichbaum, T. P., Schulz, R., Kreikenbohm, A., Kadler, M., Myserlis, I., Ros, E., Nestoras, I., Zensus, J. A.
Near-Eddington accretion rates onto low-mass black holes are thought to be a prime driver of the multi-wavelength properties of the narrow-line Seyfert 1 (NLS1) population of active galactic nuclei (AGN). Orientation effects have repeatedly been cons
Externí odkaz:
http://arxiv.org/abs/1608.03232
Autor:
Fuhrmann, L., Angelakis, E., Zensus, J. A., Nestoras, I., Marchili, N., Pavlidou, V., Karamanavis, V., Ungerechts, H., Krichbaum, T. P., Larsson, S., Lee, S. S., Max-Moerbeck, W., Myserlis, I., Pearson, T. J., Readhead, A. C. S., Richards, J. L., Sievers, A., Sohn, B. W.
Publikováno v:
A&A 596, A45 (2016)
To fully exploit the scientific potential of the Fermi mission, we initiated the F-GAMMA program. Between 2007 and 2015 it was the prime provider of complementary multi-frequency monitoring in the radio regime. We quantify the radio variability of ga
Externí odkaz:
http://arxiv.org/abs/1608.02580
Autor:
Hodgson, J. A., Krichbaum, T. P., Marscher, A. P., Jorstad, S. G., Rani, B., Marti-Vidal, I., Bach, U., Sanchez, S., Bremer, M., Lindqvist, M., Uunila, M., Kallunki, J., Vicente, P., Fuhrmann, L., Angelakis, E., Karamanavis, V., Myserlis, I., Nestoras, I., Chidiac, C., Sievers, A., Gurwell, M., Zensus, J. A.
Publikováno v:
A&A 597, A80 (2017)
The Gamma-ray BL Lac object OJ 287 is known to exhibit inner-parsec "jet-wobbling", high degrees of variability at all wavelengths and quasi-stationary features including an apparent (~100 deg) position angle change in projection on the sky plane. Su
Externí odkaz:
http://arxiv.org/abs/1607.00725
Autor:
Chidiac, C., Rani, B., Krichbaum, T. P., Angelakis, E., Fuhrmann, L., Nestoras, I., Zensus, J. A., Sievers, A., Ungerechts, H., Itoh, R., Fukazawa, Y., Uemura, M., Sasada, M., Gurwell, M., Fedorova, E.
Publikováno v:
A&A 590, A61 (2016)
Detailed investigation of broadband flux variability in the blazar 3C 273 allows us to probe the location and size of emission regions and their physical conditions. We report the results on correlation studies of the flaring activity observed betwee
Externí odkaz:
http://arxiv.org/abs/1603.06989
Autor:
Karamanavis, V., Fuhrmann, L., Angelakis, E., Nestoras, I., Myserlis, I., Krichbaum, T. P., Zensus, J. A., Ungerechts, H., Sievers, A., Gurwell, M. A.
Publikováno v:
A&A 590, A48 (2016)
Context. The origin of blazar variability, seen from radio up to gamma rays, is still a heavily debated matter and broadband flares offer a unique testbed towards a better understanding of these extreme objects. Such an energetic outburst was detecte
Externí odkaz:
http://arxiv.org/abs/1603.04220
Autor:
Karamanavis, V., Fuhrmann, L., Krichbaum, T. P., Angelakis, E., Hodgson, J., Nestoras, I., Myserlis, I., Zensus, J. A., Sievers, A., Ciprini, S.
Publikováno v:
A&A 586, A60 (2016)
Context. Blazars are among the most energetic objects in the Universe. In 2008 August, Fermi/LAT detected the blazar PKS 1502+106 showing a rapid and strong gamma-ray outburst followed by high and variable flux over the next months. This activity at
Externí odkaz:
http://arxiv.org/abs/1511.01085