Browsing by Keyword "galaxies: active"

Now showing items 1-20 of 71

Title: Activity of the Seyfert galaxy neighbours Author(s): Koulouridis, E.; Plionis, M.; Chavushyan, V.; Dultzin, D.; Krongold, Y.; Georgantopoulos, I.; León-Tavares, Jonathan Date: 2013 Series: ASTRONOMY AND ASTROPHYSICS, Volume 552, issue id. A135
Title: AGILE detection of extreme gamma-ray activity from the blazar PKS 1510-089 during March 2009. Multifrequency analysis Author(s): "D'Ammando", F.; Raiteri, C.M.; Villata, M.; Romano, P.; Pucella, G.; Krimm, H.A.; Covino, S.; Orienti, M.; Giovannini, G.; Vercellone, S.; Pian, E.; Donnarumma, I.; Vittorini, V.; Tavani, M.; Argan, A.; Barbiellini, G.; Boffelli, F.; Bulgarelli, A.; Caraveo, P.; Cattaneo, P.W.; Chen, A.W.; Cocco, V.; Costa, E.; Del Monte, E.; de Paris, G.; Di Cocco, G.; Evangelista, Y.; Feroci, M.; Ferrari, A.; Fiorini, M.; Froysland, T.; Frutti, M.; Fuschino, F.; Galli, M.; Gianotti, F.; Giuliani, A.; Labanti, C.; Lapshov, I.; Lazzarotto, F.; Lipari, P.; Longo, F.; Marisaldi, M.; Mereghetti, S.; Morselli, A.; Pacciani, L.; Pellizzoni, A.; Perotti, F.; Piano, G.; Picozza, P.; Pilia, M.; Porrovecchio, G.; Prest, M.; Rapisarda, M.; Rappoldi, A.; Rubini, A.; Sabatini, S.; Soffitta, P.; Striani, E.; Trifoglio, M.; Trois, A.; Vallazza, E.; Zambra, A.; Zanello, D.; Agudo, I.; Aller, H.D.; Aller, M.F.; Arkharov, A.A.; Bach, U.; Benitez, E.; Berdyugin, A.; Blinov, D.A.; Buemi, C.S.; Chen, W.P.; di Paola, A.; Dolci, M.; Forné, E.; Fuhrmann, L.; Gómez, J.L.; Gurwell, M.A.; Jordan, B.; Jorstad, S.G.; Heidt, J.; Hiriart, D.; Hovatta, T.; Hsiao, H.Y.; Kimeridze, G.; Konstantinova, T.S.; Kopatskaya, E.N.; Koptelova, E.; Kurtanidze, O.M.; Kurtanidze, S.O.; Larionov, V.M.; Lähteenmäki, A.; Leto, P.; Lindfors, E.; Marscher, A.P.; McBreen, B.; McHardy, I.M.; Morozova, D.A.; Nilsson, K.; Pasanen, M.; Roca-Sogorb, M.; Sillanpää, A.; Takalo, L.O.; Tornikoski, M.; Trigilio, C.; Troitsky, I.S.; Umana, G.; Antonelli, L.A.; Colafrancesco, S.; Pittori, C.; Santolamazza, P.; Verrecchia, F.; Giommi, P.; Salotti, L. Date: 2011 Series: ASTRONOMY AND ASTROPHYSICS, Volume 529
Title: Another look at the BL Lacertae flux and spectral variability. Observations by GASP-WEBT, XMM-Newton, and Swift in 2008-2009 Author(s): Raiteri, C.M.; Villata, M.; Bruschini, L.; Capetti, A.; Kurtanidze, O.M.; Larionov, V.M.; Romano, P.; Vercellone, S.; Agudo, I.; Aller, H.D.; Aller, M.F.; Arkharov, A.A.; Bach, U.; Berdyugin, A.; Blinov, D.A.; Böttcher, M.; Buemi, C.S.; Calcidese, P.; Carosati, D.; Casas, R.; Chen, W.-P.; Coloma, J.; Diltz, C.; di Paola, A.; Dolci, M.; Efimova, N.V.; Forné, E.; Gómez, J.L.; Gurwell, M.A.; Hakola, A.; Hovatta, T.; Hsiao, H.Y.; Jordan, B.; Jorstad, S.G.; Koptelova, E.; Kurtanidze, S.O.; Lähteenmäki, A.; Larionova, E.G.; Leto, P.; Lindfors, E.; Ligustri, R.; Marscher, A.P.; Morozova, D.A.; Nikolashvili, M.G.; Nilsson, K.; Ros, J.A.; Roustazadeh, P.; Sadun, A.C.; Sillanpää, A.; Sainio, J.; Takalo, L.O.; Tornikoski, M.; Trigilio, C.; Troitsky, I.S.; Umana, G. Date: 2010 Series: ASTRONOMY AND ASTROPHYSICS, Volume 524
Title: Bimodal radio variability in OVRO-40 m-monitored blazars Author(s): Liodakis, I.; Pavlidou, V.; Hovatta, T.; Max-Moerbeck, W.; Pearson, T. J.; Richards, J. L.; Readhead, A.C.S. Date: 2017-06 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 467, issue 4
Title: Characterization of a Sample of Intermediate-type Active Galactic Nuclei. II. Host Bulge Properties and Black Hole Mass Estimates Author(s): Benítez, Erika; Méndez-Abreu, Jairo; Fuentes-Carrera, Isaura; Cruz-González, Irene; Martínez, Benoni; López-Martin, Luis; Jiménez-Bailón, Elena; Chavushyan, Vahram; León-Tavares, Jonathan Date: 2013 Series: ASTROPHYSICAL JOURNAL, Volume 763, issue 2
Title: Characterization of a Sample of Intermediate-type AGNs. I. Spectroscopic Properties and Serendipitous Discovery of New Dual AGNs Author(s): Benítez, Erika; Méndez-Abreu, Jairo; Fuentes-Carrera, Isaura; Cruz-González, Irene; Martínez, Benoni; López-Martin, Luis; Jiménez-Bailón, Elena; León-Tavares, Jonathan; Chavushyan, Vahram H. Date: 2013 Series: ASTROPHYSICAL JOURNAL, Volume 763, issue 1
Title: A combined radio and GeV gamma-ray view of the 2012 and 2013 flares of Mrk 421 Author(s): Hovatta, T.; Petropoulou, M.; Richards, J.L.; Giannios, D.; Wiik, K.; Balokovic, M.; Lähteenmäki, A.; Lott, B.; Max-Moerbeck, W.; Ramakrishnan, V.; Readhead, A.C.S. Date: 2015 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 448, issue 4
Title: The connection between the parsec-scale radio jet and gamma-ray flares in the blazar 1156+295 Author(s): Ramakrishnan, Venkatessh; León-Tavares, Jonathan; Rastorgueva-Foi, Elizaveta A.; Wiik, Kaj; Jorstad, Svetlana G.; Marscher, Alan P.; Tornikoski, Merja; Agudo, Iván; Lähteenmäki, Anne; Valtaoja, Esko; Aller, Margo F.; Blinov, Dmitry A.; Casadio, Carolina; Efimova, Natalia V.; Gurwell, Mark A.; Gómez, José L.; Hagen-Thorn, Vladimir A.; Joshi, Manasvita; Järvelä, Emilia; Konstantinova, Tatiana S.; Kopatskaya, Evgenia N.; Larionov, Valeri M.; Larionova, Elena G.; Larionova, Liudmilla V.; Lavonen, Niko; MacDonald, Nicholas R.; McHardy, Ian M.; Molina, Sol N.; Morozova, Daria A.; Nieppola, Elina; Tammi, Joni; Taylor, Brian W.; Troitsky, Ivan S. Date: 2014 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 445, issue 2
Title: The Connection between the Radio Jet and the Gamma-ray Emission in the Radio Galaxy 3C 120 Author(s): Casadio, Carolina; Gómez, José L.; Grandi, Paola; Jorstad, Svetlana G.; Marscher, Alan P.; Lister, Matthew L.; Kovalev, Yuri Y.; Savolainen, Tuomas; Pushkarev, Alexander B. Date: 2015 Series: ASTROPHYSICAL JOURNAL, Volume 808, issue 2
Title: Core shift effect in blazars Author(s): Agarwal, A.; Mohan, P.; Gupta, Alok C.; Mangalam, A.; Volvach, A.E.; Aller, M. F.; Aller, H. D.; Gu, M.F.; Lähteenmäki, Anne; Tornikoski, M.; Volvach, L.N. Date: 2017-07 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 469, issue 1
Title: Correlation between Fermi/LAT gamma-ray and 37 GHz radio properties of northern AGN averaged over 11 months Author(s): Nieppola, E.; Tornikoski, M.; Valtaoja, E.; León-Tavares, J.; Hovatta, T.; Lähteenmäki, A.; Tammi, J. Date: 2011 Series: ASTRONOMY AND ASTROPHYSICS, Volume 535, issue A69
Title: Cosmological Evolution of Quasar Radio Emission in the View of Multifractality Author(s): Belete, A. Bewketu; Femmam, Smain; Tornikoski, Merja; Lahteenmaki, Anne; Tammi, Joni; Leao, I. C.; Martins, B. L. Canto; De Medeiros, J. R. Date: 2019-03-10 Series: Astrophysical Journal, Volume 873, issue 2
Title: Erratic flaring of BL LAC in 2012-2013 Author(s): Wehrle, Ann E.; Grupe, Dirk; Jorstad, Svetlana G.; Marscher, Alan P.; Gurwell, Mark; Baloković, Mislav; Hovatta, Talvikki; Madejski, Grzegorz M.; Harrison, Fiona H.; Stern, Daniel Date: 2016-01-10 Series: ASTROPHYSICAL JOURNAL, Volume 816, issue 2
Title: Fermi Large Area Telescope Observations of Markarian 421 Author(s): Abdo, A. A.; Ackermann, M.; Ajello, M.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bouvier, A.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Cannon, A.; Caraveo, P. A.; Carrigan, S.; Casandjian, J. M.; Cavazzuti, E.; Cecchi, C.; Çelik, Ö.; Charles, E.; Chekhtman, A.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Conrad, J.; Cutini, S.; de Angelis, A.; de Palma, F.; Dermer, C. D.; Silva, E. do Couto e.; Drell, P. S.; Dubois, R.; Dumora, D.; Escande, L.; Favuzzi, C.; Lähteenmäki, A.; Hovatta, T.; Tammi, J. Date: 2011 Series: ASTROPHYSICAL JOURNAL, Volume 736, issue 2
Title: Flare-like Variability of the Mg II λ2800 Emission Line in the γ-Ray Blazar 3C 454.3 Author(s): León-Tavares, J.; Chavushyan, V.; Patiño-Álvarez, V.; Valtaoja, E.; Arshakian, T.G.; Popovic, L. C.; Tornikoski, M.; Lobanov, A.; Carramiñana, A.; Carrasco, L.; Lähteenmäki, A. Date: 2013 Series: ASTROPHYSICAL JOURNAL LETTERS, Volume 763, issue 2
Title: Frequency-dependent core shifts and parameter estimation for the blazar 3C 454.3 Author(s): Mohan, P.; Agarwal, A.; Mangalam, A.; Gupta, Alok C.; Wiita, Paul J.; Volvach, A.E.; Aller, M.F.; Aller, H.D.; Gu, M.F.; Lähteenmäki, A.; Tornikoski, M.; Volvach, L.N. Date: 2015 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 452, issue 2
Title: From radio to TeV: the surprising spectral energy distribution of AP Librae Author(s): Sanchez, D.A.; Giebels, B.; Fortin, P.; Horan, D.; Szostek, A.; Fegan, S.; Baczko, A.-K.; Finke, J.; Kadler, M.L.; Kovalev, Y.Y.; Lister, M.L.; Pushkarev, A.B.; Savolainen, T. Date: 2015 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 454, issue 3
Title: The high energy spectrum of 3C 273 Author(s): Esposito, V.; Walter, R.; Jean, P.; Tramacere, A.; Türler, M.; Lähteenmäki, A.; Tornikoski, M. Date: 2015 Series: ASTRONOMY AND ASTROPHYSICS, Volume 576, issue 1
Title: High radio-frequency properties and variability of brightest cluster galaxies Author(s): Hogan, M.T.; Edge, A.C.; Geach, J.E.; Grainge, K.J.B.; Hlavacek-Larrondo, J.; Hovatta, T.; Karim, A.; McNamara, B.R.; Rumsey, C.; Russell, H.R.; Salomé, P.; Aller, H.D.; Aller, M.F.; Benford, D.J.; Fabian, A.C.; Readhead, A.C.S.; Sadler, E.M.; Saunders, R.D.E. Date: 2015 Series: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Volume 453, issue 2
Title: Insights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012 Author(s): Aleksić, J.; Ansoldi, S.; Antonelli, L. A.; Antoranz, P.; Arcaro, C.; Babic, A.; Bangale, P.; Barres De Almeida, U.; Barrio, J. A.; Becerra González, J.; Bednarek, W.; Bernardini, E.; Biasuzzi, B.; Biland, A.; Blanch, O.; Bonnefoy, S.; Bonnoli, G.; Borracci, F.; Bretz, T.; Carmona, E.; Carosi, A.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Caneva, G.; De Lotto, B.; De Oña Wilhelmi, E.; Delgado Mendez, C.; Di Pierro, F.; Dominis Prester, D.; Dorner, D.; Doro, M.; Einecke, S.; Eisenacher, D.; Elsaesser, D.; Fernández-Barral, A.; Fidalgo, D.; Fonseca, M. V.; Font, L.; Frantzen, K.; Fruck, C.; Galindo, D.; García López, R. J.; Garczarczyk, M.; Garrido Terrats, D.; Gaug, M.; Godinović, N.; González Muñoz, A.; Gozzini, S. R.; Hadasch, D.; Hanabata, Y.; Hayashida, M.; Herrera, J.; Hose, J.; Hrupec, D.; Idec, W.; Kadenius, V.; Kellermann, H.; Knoetig, M. L.; Kodani, K.; Konno, Y.; Krause, J.; Kubo, H.; Kushida, J.; La Barbera, A.; Lelas, D.; Lewandowska, N.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; López-Coto, R.; López-Oramas, A.; Lorenz, E.; Lozano, I.; Makariev, M.; Mallot, K.; Maneva, G.; Mannheim, K.; Maraschi, L.; Marcote, B.; Mariotti, M.; Martínez, M.; Mazin, D.; Menzel, U.; Miranda, J. M.; Mirzoyan, R.; Moralejo, A.; Munar-Adrover, P.; Nakajima, D.; Neustroev, V.; Niedzwiecki, A.; Nievas Rosillo, M.; Nilsson, K.; Nishijima, K.; Noda, K.; Orito, R.; Overkemping, A.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Paredes-Fortuny, X.; Persic, M.; Poutanen, J.; Prada Moroni, P. G.; Prandini, E.; Puljak, I.; Reinthal, R.; Rhode, W.; Ribó, M.; Rico, J.; Rodriguez Garcia, J.; Saito, T.; Saito, K.; Satalecka, K.; Scalzotto, V.; Scapin, V.; Schweizer, T.; Shore, S. N.; Sillanpää, A.; Sitarek, J.; Snidaric, I.; Sobczynska, D.; Stamerra, A.; Steinbring, T.; Strzys, M.; Takalo, L.; Takami, H.; Tavecchio, F.; Temnikov, P.; Terzić, T.; Tescaro, D.; Teshima, M.; Thaele, J.; Torres, D. F.; Toyama, T.; Treves, A.; Vogler, P.; Will, M.; Zanin, R.; Buson, S.; D'Ammando, F.; Lähteenmäki, A.; Hovatta, T.; Kovalev, Y. Y.; Lister, M. L.; Max-Moerbeck, W.; Mundell, C.; Pushkarev, A. B.; Rastorgueva-Foi, E.; Readhead, A. C S; Richards, J. L.; Tammi, J.; Sanchez, D. A.; Tornikoski, M.; Savolainen, Tuomas; Steele, I. Date: 2016 Series: Astronomy and Astrophysics, Volume 591