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URI: http://hdl.handle.net/2144/1177

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  • Behind the scenes: doing science across the spectrum 

    Marscher, Alan
    Summary of observations of blazars from radio through gamma-ray wavelengths, and their interpretation in terms of relativistic jets of ultra-high-energy particles and magnetic fields, powered by super-massive black holes ...
  • Multi-wavelength characterization of the blazar S5 0716+714 during an unprecedented outburst phase 

    Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A.; Arcaro, C.; Baack, D.; Babic, A.; Banerjee, B.; Bangale, P.; Barres de Almeida, U.; Barrio, JA; Becerra Gonzalez, J.; Bednarek, W.; Bernardini, E.; Berse, R. Ch.; Berti, A.; Bhattacharyya, W.; Biland, A.; Blanch, O.; Bonnoli, G.; Carosi, R.; Carosi, A.; Ceribella, G.; Chatterjee, A.; Colak, S. M.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; Cumani, P.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Delfino, M.; Delgado, J.; Di Pierro, F.; Dominguez, A.; Prester, D. Dominis; Dorner, D.; Doro, M.; Einecke, S.; Elsaesser, D.; Ramazani, V. Fallah; Fernandez-Barral, A.; Fidalgo, D.; Fonseca, M.; Font, L; Fruck, C.; Galindo, D.; Gallozzi, S.; Garcia Lopez, RJ; Garczarczyk, M.; Gaug, M.; Giammaria, P.; Godinovic, N.; Gora, D.; Guberman, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Hayashida, M.; Herrera, J.; Hose, J.; Hrupec, D.; Ishio, K.; Konno, Y.; Kubo, H.; Kushida, J.; Kuvezdic, D.; Lelas, D.; Lindfors, E.; Lombardi, S.; Longo, F.; Lopez, M.; Maggio, C.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martinez, M.; Masuda, S.; Mazin, D.; Mielke, K.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Moralejo, A.; Moreno, V.; Moretti, E.; Nagayoshi, T.; Neustroev, V.; Niedzwiecki, A.; Nievas Rosillo, M.; Nigro, C.; Nilsson, K.; Ninci, D.; Nishijima, K.; Noda, K.; Nogues, L.; Paiano, S.; Palacio, J.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pedaletti, G.; Peresano, M.; Persic, M.; Moroni, P. G. Prada; Prandini, E.; Puljak, I.; Garcia, J. R.; Reichardt, I.; Rhode, W.; Ribo, M.; Rico, J.; Righi, C.; Rugliancich, A.; Saito, T.; Satalecka, K.; Schweizer, T.; Sitarek, J.; Snidaric, I.; Sobczynska, D.; Stamerra, A.; Strzys, M.; Suric, T.; Takahashi, M.; Takalo, L.; Tavecchio, F.; Temnikov, P.; Terzic, T.; Teshima, M.; Torres-Alba, N.; Treves, A.; Tsujimoto, S.; Vanzo, G.; Vazquez Acosta, M.; Vovk, I.; Ward, J. E.; Will, M.; Zaric, D.; Bastieri, D.; Gasparrini, D.; Lott, B.; Rani, B.; Thompson, D. J.; Agudo, I.; Angelakis, E.; Borman, G. A.; Casadio, C.; Grishina, T. S.; Gurwel, M.; Hovatta, T.; Itoh, R.; Jarvela, E.; Jermak, H.; Jorstad, S.; Kopatskaya, E. N.; Kraus, A.; Krichbaum, T. P.; Kuin, N. P. M.; Lahteenmaki, A.; Larionov, V. M.; Larionova, L.; Lien, A. Y.; Madejski, G.; Marscher, Alan P.; Myserlis, I.; Max-Moerbeck, W.; Molina, S. N.; Morozova, D. A.; Nalewajko, K.; Pearson, T. J.; Ramakrishnan, V.; Readhead, A. C. S.; Reeves, R. A.; Savchenko, S. S.; Steele, I. A.; Tornikoski, M.; Troitskaya, Yu.; Troitsky, I.; Vasilyev, A. A.; Zensus, J. Anton (EDP SCIENCES S A, 2018-11-09)
    CONTEXT: The BL Lac object S5 0716+714, a highly variable blazar, underwent an impressive outburst in January 2015 (Phase A), followed by minor activity in February (Phase B). The MAGIC observations were triggered by the ...
  • The magnetic field structure in CTA 102 from high-resolution mm-VLBI observations during the flaring state in 2016-2017 

    Casadio, C.; Marscher, Alan P.; Jorstad, Svetlana G.; Blinov, D. A.; MacDonald, N. R.; Krichbaum, T. P.; Boccardi, B.; Traianou, E.; Gómez, J. L.; Agudo, I.; Sohn, B.-W.; Bremer, M.; Hodgson, J.
    CONTEXT: Investigating the magnetic field structure in the innermost regions of relativistic jets is fundamental to understanding the crucial physical processes giving rise to jet formation, as well as to their extraordinary ...
  • Multiwavelength observations of a VHE gamma-ray flare from PKS 1510-089 in 2015 

    Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A.; Arcaro, C.; Babic, A.; Banerjee, B.; Bangale, P.; De Almeida, U. Barres; Barrio, J. A.; Bednarek, W.; Bernardini, E.; Berti, A.; Biasuzzi, B.; Biland, A.; Blanch, O.; Bonnefoy, S.; Bonnoli, G.; Borracci, F.; Bretz, T.; Carosi, R.; Carosi, A.; Chatterjee, A.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; Cumani, P.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Wilhelmi, E. de Ona; Di Pierro, F.; Doert, M.; Dominguez, A.; Prester, D. Dominis; Dorner, D.; Doro, M.; Einecke, S.; Glawion, D. Eisenacher; Elsaesser, D.; Engelkemeier, M.; Ramazani, V. Fallah; Fernandez-Barral, A.; Fidalgo, D.; Fonseca, M. V.; Font, L.; Fruck, C.; Galindo, D.; Lopez, R. J. Garcia; Garczarczyk, M.; Gaug, M.; Giammaria, P.; Godinovic, N.; Gora, D.; Guberman, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Hayashida, M.; Herrera, J.; Hose, J.; Hrupec, D.; Hughes, G.; Ishio, K.; Konno, Y.; Kubo, H.; Kushida, J.; Kuvezdic, D.; Lelas, D.; Lindfors, E.; Lombardi, S.; Longo, F.; Lopez, M.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martinez, M.; Mazin, D.; Menzel, U.; Mirzoyan, R.; Moralejo, A.; Moretti, E.; Nakajima, D.; Neustroev, V.; Niedzwiecki, A.; Rosillo, M. Nievas; Nilsson, K.; Nishijima, K.; Noda, K.; Nogues, L.; 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.; Garcia, J. R.; Reichardt, I.; Rhode, W.; Ribo, M.; Rico, J.; Saito, T.; Satalecka, K.; Schroeder, S.; Schweizer, T.; Shore, S. N.; Sillanpaa, A.; Sitarek, J.; Snidaric, I.; Sobczynska, D.; Stamerra, A.; Strzys, M.; Suric, T.; Takalo, L.; Tavecchio, F.; Temnikov, P.; Terzic, T.; Tescaro, D.; Teshima, M.; Torres, D. F.; Torres-Alba, N.; Toyama, T.; Treves, A.; Vanzo, G.; Acosta, M. Vazquez; Vovk, I.; Ward, J. E.; Will, M.; Wu, M. H.; Zaric, D.; Desiante, R.; Gonzalez, J. Becerra; D'Ammando, F.; Larsson, S.; Raiteri, C. M.; Reinthal, R.; Lahteenmaki, A.; Jarvela, E.; Tornikoski, M.; Ramakrishnan, V.; Jorstad, Svetlana G.; Marscher, Alan P.; Bala, V.; MacDonald, N. R.; Kaur, N.; Sameer; Baliyan, K.; Acosta-Pulido, J. A.; Lazaro, C.; Marti-nez-Lombilla, C.; Grinon-Marin, A. B.; Yabar, A. Pastor; Protasio, C.; Carnerero, M. I.; Jermak, H.; Steele, I. A.; Larionov, V. M.; Borman, G. A.; Grishina, T. S. (EDP Sciences S A, 2017-07-01)
    CONTEXT: PKS 1510−089 is one of only a few flat spectrum radio quasars detected in the very-high-energy (VHE, > 100 GeV) gamma-ray band. AIMS: We study the broadband spectral and temporal properties of the PKS 1510−089 ...
  • Spatially resolved origin of mm-wave linear polarization in the nuclear region of 3C 84 

    Kim, J.-Y.; Krichbaum, T. P.; Marscher, Alan P.; Jorstad, Svetlana G.; Agudo, I.; Thum, C.; Hodgson, J. A.; MacDonald, Nicholas Roy; Ros, E.; Lu, R.-S.; Bremer, M.; Vicente, P. de; Lindqvist, M.; Trippe, S.; Zensus, J. A.
    We report results from a deep polarization imaging of the nearby radio galaxy 3C 84 (NGC 1275). The source was observed with the Global Millimeter VLBI Array (GMVA) at 86 GHz at an ultra-high angular resolution of 50μas ...
  • MAGIC gamma-ray and multi-frequency observations of flat spectrum radio quasar PKS 1510− 089 in early 2012 

    Aleksić, J.; Ansoldi, S.; Antonelli, L. A.; Antoranz, P.; Babic, A.; Bangale, P.; de Almeida, U. B.; Barrio, J. A.; González, J. B.; Bednarek, W. (EDP Sciences, 2014-09-17)
    AIMS: Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only three belong to the subclass of flat spectrum radio quasars (FSRQs). The detection of FSRQs in the VHE range is challenging, ...
  • " Orphan" γ-ray flares and stationary sheaths of blazar jets 

    MacDonald, Nicholas Roy; Jorstad, Svetlana G.; Marscher, Alan P. (American Astronomical Society, 2017-11-20)
    Blazars exhibit flares across the entire electromagnetic spectrum. Many γ-ray flares are highly correlated with flares detected at longer wavelengths; however, a small subset appears to occur in isolation, with little or ...
  • 3 mm GMVA observations of total and polarized emission from blazar and radio galaxy core regions 

    Casadio, Carolina; Krichbaum, Thomas P.; Marscher, Alan P.; Jorstad, Svetlana G.; Gomez, Jose L.; Agudo, Ivan; Bach, Uwe; Kim, Jae-Young; Hodgson, Jeffrey A.; Zensus, Anton J. (MDPI AG, 2017-10-18)
    We present total and linearly polarized 3 mm Global mm-VLBI Array images of a sample of blazars and radio galaxies from the VLBA-BU-BLAZAR 7 mm monitoring program designed to probe the innermost regions of active galactic ...
  • The detection of the blazar S4 0954+65 at very-high-energy with the MAGIC telescopes during an exceptionally high optical state 

    Collaboration, MAGIC; Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A.; Arcaro, C.; Baack, D.; Babić, A.; Banerjee, B.; Bangale, P.; Almeida, U. Barres de; Barrio, J. A.; Bednarek, W.; Bernardini, E.; Berse, R. Ch.; Berti, A.; Bhattacharyya, W.; Biland, A.; Blanch, O.; Bonnoli, G.; Carosi, R.; Carosi, A.; Ceribella, G.; Chatterjee, A.; Colak, S. M.; Colin, P.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; Cumani, P.; Vela, P. Da; Dazzi, F.; Angelis, A. De; Lotto, B. De; Delfino, M.; Delgado, J.; Pierro, F. Di; Domínguez, A.; Prester, D. Dominis; Dorner, D.; Doro, M.; Einecke, S.; Elsaesser, D.; Ramazani, V. Fallah; Fernández-Barral, A.; Fidalgo, D.; Fonseca, M. V.; Font, L.; Fruck, C.; Galindo, D.; López, R. J. García; Garczarczyk, M.; Gaug, M.; Giammaria, P.; Godinović, N.; Gora, D.; Guberman, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Hayashida, M.; Herrera, J.; Hose, J.; Hrupec, D.; Ishio, K.; Konno, Y.; Kubo, H.; Kushida, J.; dić, D. Kuvež; Lelas, D.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; Maggio, C.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martínez, M.; Masuda, S.; Mazin, D.; Mielke, K.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Moralejo, A.; Moreno, V.; Moretti, E.; Nagayoshi, T.; Neustroev, V.; Niedzwiecki, A.; Rosillo, M. Nievas; Nigro, C.; Nilsson, K.; Ninci, D.; Nishijima, K.; Noda, K.; Nogués, L.; Paiano, S.; Palacio, J.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pedaletti, G.; Peresano, M.; Persic, M.; Moroni, P. G. Prada; Prandini, E.; Puljak, I.; Garcia, J. R.; Reichardt, I.; Rhode, W.; Ribó, M.; Rico, J.; Righi, C.; Rugliancich, A.; Saito, T.; Satalecka, K.; Schweizer, T.; Sitarek, J.; Šnidarić, I.; Sobczynska, D.; Stamerra, A.; Strzys, M.; Surić, T.; Takahashi, M.; Takalo, L.; Tavecchio, F.; Temnikov, P.; Terzić, T.; Teshima, M.; Torres-Albà, N.; Treves, A.; Tsujimoto, S.; Vanzo, G.; Acosta, M. Vazquez; Vovk, I.; Ward, J. E.; Will, M.; Zarić, D.; González, J. Becerra; Tanaka, Y.; Ojha, R.; Finke, J.; Lähteenmäki, A.; Järvelä, E.; Tornikoski, M.; Ramakrishnan, V.; Hovatta, T.; Jorstad, S. G.; Marscher, Alan P.; Larionov, V. M.; Borman, G. A.; Grishina, T. S.; Kopatskaya, E. N.; Larionova, L. V.; Morozova, D. A.; Savchenko, S. S.; Troitskaya, Yu. V.; Troitsky, I. S.; Vasilyev, A. A.; Agudo, I.; Molina, S. N.; Casadio, C.; Gurwell, M.; Carnerero, M. I.; Protasio, C.; Pulido, J. A. Acosta (EDP Sciences, 2018-09)
    The very-high-energy (VHE, ≳ 100 GeV) γ-ray MAGIC observations of the blazar S4 0954+65, were triggered by an exceptionally high flux state of emission in the optical. This blazar has a disputed redshift of z=0.368 or z ≥ ...

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