相关论文: Constraining the parameter space of the one-zone s…

Near-Equipartition Jets with Log-Parabola Electron Energy Distribution and the Blazar Spectral-Index Diagrams

Fermi-LAT analyses show that the gamma-ray photon spectral indices Gamma_gamma of a large sample of blazars correlate with the vFv peak synchrotron frequency v_s according to the relation Gamma_gamma = d - k log v_s. The same function, with…

高能天体物理现象 · 物理学 2015-09-09 Charles D. Dermer , Dahai Yan , Li Zhang , Justin D. Finke , Benoit Lott

The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission

A multifrequency campaign on the BL Lac object PG 1553+113 was organized by the Whole Earth Blazar Telescope (WEBT) in 2013 April-August, involving 19 optical, two near-IR, and three radio telescopes. The aim was to study the source…

高能天体物理现象 · 物理学 2019-08-13 C. M. Raiteri , A. Stamerra , M. Villata , V. M. Larionov , J. A. Acosta-Pulido

The bulk Lorentz factor crisis of TeV blazars : evidence for an inhomogeneous pileup energy distribution ?

There is growing evidence that the estimations of the beaming Doppler factor in TeV BL Lac object based on the Self Synchrotron Compton (SSC) models are in strong disagreement with those deduced from the unification models between blazars…

天体物理学 · 物理学 2009-11-13 Gilles Henri , Ludovic Sauge

SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars

We report on recent results from a target-of-opportunity program to obtain spectropolarimetry observations with the Southern African Large Telescope (SALT) on flaring gamma-ray blazars. SALT spectropolarimetry and contemporaneous…

高能天体物理现象 · 物理学 2017-08-01 Markus Boettcher , Brian van Soelen , Richard J. Britto , David A. H. Buckley , Johannes P. Marais , Hester Schutte

Linking radio and gamma ray emission in Ap Librae

Ap Lib is one of the rare Low Synchrotron Peaked blazars detected so far at TeV energies. This type of source is not properly modelled by standard one-zone leptonic Synchrotron-self-Compton (SSC) emission scenarios. The aim of this paper is…

高能天体物理现象 · 物理学 2015-06-10 O. Hervet , C. Boisson , H. Sol

Unprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010

A flare from the TeV blazar Mrk 421, occurring in March 2010, was observed for 13 consecutive days from radio to very high energy (VHE, E > 100 GeV) gamma-rays with MAGIC, VERITAS, Whipple, FermiLAT, MAXI, RXTE, Swift, GASP-WEBT, and…

高能天体物理现象 · 物理学 2015-06-16 The MAGIC Collaboration , J. Aleksić , S. Ansoldi , L. A. Antonelli , P. Antoranz , A. Babic , P. Bangale , U. Barres de Almeida , J. A. Barrio , J. Becerra González , W. Bednarek , E. Bernardini , B. Biasuzzi , A. Biland , O. Blanch , A. Boller , S. Bonnefoy , G. Bonnoli , F. Borracci , T. Bretz , E. Carmona , A. Carosi , P. Colin , E. Colombo , J. L. Contreras , J. Cortina , S. Covino , P. Da Vela , F. Dazzi , A. De Angelis , G. De Caneva , B. De Lotto , E. de Oña Wilhelmi , C. Delgado Mendez , D. Dominis Prester , D. Dorner , M. Doro , S. Einecke , D. Eisenacher , D. Elsaesser , M. V. Fonseca , L. Font , K. Frantzen , C. Fruck , D. Galindo , R. J. García López , M. Garczarczyk , D. Garrido Terrats , M. Gaug , N. Godinović , A. González Muñoz , S. R. Gozzini , D. Hadasch , Y. Hanabata , M. Hayashida , J. Herrera , D. Hildebrand , J. Hose , D. Hrupec , G. Hughes , W. Idec , V. Kadenius , H. Kellermann , M. L. Knoetig , K. Kodani , Y. Konno , J. Krause , H. Kubo , J. Kushida , A. La Barbera , D. Lelas , N. Lewandowska , E. Lindfors , S. Lombardi , M. López , R. López-Coto , A. López-Oramas , E. Lorenz , I. Lozano , M. Makariev , K. Mallot , G. Maneva , N. Mankuzhiyil , K. Mannheim , L. Maraschi , B. Marcote , M. Mariotti , M. Martínez , D. Mazin , U. Menzel , J. M. Miranda , R. Mirzoyan , A. Moralejo , P. Munar-Adrover , D. Nakajima , A. Niedzwiecki , K. Nilsson , K. Nishijima , K. Noda , R. Orito , A. Overkemping , S. Paiano , M. Palatiello , D. Paneque , R. Paoletti , J. M. Paredes , X. Paredes-Fortuny , M. Persic , P. G. Prada Moroni , E. Prandini , I. Puljak , R. Reinthal , W. Rhode , M. Ribó , J. Rico , J. Rodriguez Garcia , S. Rügamer , T. Saito , K. Saito , K. Satalecka , V. Scalzotto , V. Scapin , C. Schultz , T. Schweizer , S. Sun , S. N. Shore , A. Sillanpää , J. Sitarek , I. Snidaric , D. Sobczynska , F. Spanier , V. Stamatescu , A. Stamerra , T. Steinbring , B. Steinke , J. Storz , M. Strzys , L. Takalo , H. Takami , F. Tavecchio , P. Temnikov , T. Terzić , D. Tescaro , M. Teshima , J. Thaele , O. Tibolla , D. F. Torres , T. Toyama , A. Treves , M. Uellenbeck , P. Vogler , R. Zanin , The VERITAS Collaboration , : , S. Archambault , A. Archer , M. Beilicke , W. Benbow , K. Berger , R. Bird , J. Biteau , J. H. Buckley , V. Bugaev , M. Cerruti , X. Chen , L. Ciupik , E. Collins-Hughes , W. Cui , J. D. Eisch , A. Falcone , Q. Feng , J. P. Finley , P. Fortin , L. Fortson , A. Furniss , N. Galante , G. H. Gillanders , S. Griffin , G. Gyuk , N. Håkansson , J. Holder , C. A. Johnson , P. Kaaret , P. Kar , M. Kertzman , D. Kieda , M. J. Lang , S. McArthur , A. McCann , K. Meagher , J. Millis , P. Moriarty , R. A. Ong , A. N. Otte , J. S. Perkins , A. Pichel , M. Pohl , A. Popkow , H. Prokoph , E. Pueschel , K. Ragan , L. C. Reyes , P. T. Reynolds , G. T. Richards , E. Roache , A. C. Rovero , G. H. Sembroski , K. Shahinyan , D. Staszak , I. Telezhinsky , J. V. Tucci , J. Tyler , A. Varlotta , S. P. Wakely , R. Welsing , A. Wilhelm , D. A. Williams , External Collaborators , : , S. Buson , J. Finke , M. Villata , C. Raiteri , H. D. Aller , M. F. Aller , A. Cesarini , W. P. Chen , M. A. Gurwell , S. G. Jorstad , G. N. Kimeridze , E. Koptelova , O. M. Kurtanidze , S. O. Kurtanidze , A. Lähteenmäki , V. M. Larionov , E. G. Larionova , H. C. Lin , B. McBreen , J. W. Moody , D. A. Morozova , A. P. Marscher , W. Max-Moerbeck , M. G. Nikolashvili , M. Perri , A. C. S. Readhead , J. L. Richards , J. A. Ros , A. C. Sadun , T. Sakamoto , L. A. Sigua , P. S. Smith , M. Tornikoski , I. S. Troitsky , A. E. Wehrle , B. Jordan

Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009

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…

高能天体物理现象 · 物理学 2017-07-05 M. L. Ahnen , S. Ansoldi , L. A. Antonelli , P. Antoranz , A. Babic , B. Banerjee , P. Bangale , U. Barres de Almeida , J. A. Barrio , J. Becerra González , W. Bednarek , E. Bernardini , A. Berti , B. Biasuzzi , A. Biland , O. Blanch , S. Bonnefoy , G. Bonnoli , F. Borracci , T. Bretz , S. Buson , A. Carosi , A. Chatterjee , R. Clavero , P. Colin , E. Colombo , J. L. Contreras , J. Cortina , S. Covino , P. Da Vela , F. Dazzi , A. De Angelis , B. De Lotto , E. de Ona Wilhelmi , F. Di Pierro , M. Doert , A. Domínguez , D. Dominis Prester , D. Dorner , M. Doro , S. Einecke , D. Eisenacher Glawion , D. Elsaesser , M. Engelkemeier , V. Fallah Ramazani , A. Fernández-Barral , D. Fidalgo , M. V. Fonseca , L. Font , K. Frantzen , C. Fruck , D. Galindo , R. J. García López , M. Garczarczyk , D. Garrido Terrats , M. Gaug , P. Giammaria , N. Godinović , A. González Munoz , D. Gora , D. Guberman , D. Hadasch , A. Hahn , Y. Hanabata , M. Hayashida , J. Herrera , J. Hose , D. Hrupec , G. Hughes , W. Idec , K. Kodani , Y. Konno , H. Kubo , J. Kushida , A. La Barbera , D. Lelas , E. Lindfors , S. Lombardi , F. Longo , M. López , R. López-Coto , P. Majumdar , M. Makariev , K. Mallot , G. Maneva , M. Manganaro , K. Mannheim , L. Maraschi , B. Marcote , M. Mariotti , M. Martínez , D. Mazin , U. Menzel , J. M. Miranda , R. Mirzoyan , A. Moralejo , E. Moretti , D. Nakajima , V. Neustroev , A. Niedzwiecki , M. Nievas Rosillo , K. Nilsson , K. Nishijima , K. Noda , L. Nogués , A. Overkemping , S. Paiano , J. Palacio , M. Palatiello , D. Paneque , R. Paoletti , J. M. Paredes , X. Paredes-Fortuny , G. Pedaletti , M. Peresano , L. Perri , M. Persic , J. Poutanen , P. G. Prada Moroni , E. Prandini , I. Puljak , I. Reichardt , W. Rhode , M. Ribó , J. Rico , J. Rodriguez Garcia , T. Saito , K. Satalecka , S. Schröder , C. Schultz , T. Schweizer , S. N. Shore , A. Sillanpää , J. Sitarek , I. Snidaric , D. Sobczynska , A. Stamerra , T. Steinbring , M. Strzys , T. Surić , L. Takalo , F. Tavecchio , P. Temnikov , T. Terzić , D. Tescaro , M. Teshima , J. Thaele , D. F. Torres , T. Toyama , A. Treves , G. Vanzo , V. Verguilov , I. Vovk , J. E. Ward , M. Will , M. H. Wu , R. Zanin , A. U. Abeysekara , S. Archambault , A. Archer , W. Benbow , R. Bird , M. Buchovecky , J. H. Buckley , V. Bugaev , M. P. Connolly , W. Cui , H. J. Dickinson , A. Falcone , Q. Feng , J. P. Finley , H. Fleischhack , A. Flinders , L. Fortson , G. H. Gillanders , S. Griffin , J. Grube , M. Hütten , D. Hanna , J. Holder , T. B. Humensky , P. Kaaret , P. Kar , N. Kelley-Hoskins , M. Kertzman , D. Kieda , M. Krause , F. Krennrich , M. J. Lang , G. Maier , A. McCann , P. Moriarty , R. Mukherjee , D. Nieto , S. O'Brien , R. A. Ong , N. Otte , N. Park , J. Perkins , A. Pichel , M. Pohl , A. Popkow , E. Pueschel , J. Quinn , K. Ragan , P. T. Reynolds , G. T. Richards , E. Roache , A. C. Rovero , C. Rulten , I. Sadeh , M. Santander , G. H. Sembroski , K. Shahinyan , I. Telezhinsky , J. V. Tucci , J. Tyler , S. P. Wakely , A. Weinstein , P. Wilcox , A. Wilhelm , D. A. Williams , B. Zitzer , S. Razzaque , M. Villata , C. M. Raiteri , H. D. Aller , M. F. Aller , V. M. Larionov , A. A. Arkharov , D. A. Blinov , N. V. Efimova , T. S. Grishina , V. A. Hagen-Thorn , E. N. Kopatskaya , L. V. Larionova , E. G. Larionova , D. A. Morozova , I. S. Troitsky , R. Ligustri , P. Calcidese , A. Berdyugin , O. M. Kurtanidze , M. G. Nikolashvili , G. N. Kimeridze , L. A. Sigua , S. O. Kurtanidze , R. A. Chigladze , W. P. Chen , E. Koptelova , T. Sakamoto , A. C. Sadun , J. W. Moody , C. Pace , R. Pearson , Y. Yatsu , Y. Mori , A. Carraminyana , L. Carrasco , E. de la Fuente , J. P. Norris , P. S. Smith , A. Wehrle , M. A. Gurwell , Alma Zook , C. Pagani , M. Perri , M. Capalbi , A. Cesarini , H. A. Krimm , Y. Y. Kovalev , Yu. A. Kovalev , E. Ros , A. B. Pushkarev , M. L. Lister , K. V. Sokolovsky , M. Kadler , G. Piner , A. Lähteenmäki , M. Tornikoski , E. Angelakis , T. P. Krichbaum , I. Nestoras , L Fuhrmann , J. A. Zensus , P. Cassaro , A. Orlati , G. Maccaferri , P. Leto , M. Giroletti , J. L. Richards , W. Max-Moerbeck , A. C. S. Readhead

A one-parameter two-zone leptonic model for the blazar sequence

Blazars, a subclass of radio-loud active galactic nuclei with relativistic jets aligned close to our line of sight, emit highly variable non-thermal radiation across the electromagnetic spectrum. The physical origin of their emission and…

高能天体物理现象 · 物理学 2026-01-14 Stella Boula , Apostolos Mastichiadis , Demosthenes Kazanas

The SED of the TeV BLLac 1ES 1426+428 after correction for the TeV--IR absorption

The recent HEGRA detection and spectrum of 1ES 1426+428 at TeV energies, once corrected for absorption using present estimates of the diffuse extragalactic IR background, suggest that the high energy peak of the Spectral Energy Distribution…

天体物理学 · 物理学 2009-11-07 L. Costamante , F. Aharonian , G. Ghisellini , D. Horns

Discovery of VHE gamma-rays from the distant BL Lac 1ES 0347-121

Aims: Our aim is to study the production mechanism for very-high-energy (VHE; >100GeV) gamma-rays in distant active galactic nuclei (AGN) and use the observed VHE spectrum to derive limits on the Extragalactic Background Light (EBL). We…

天体物理学 · 物理学 2009-04-16 HESS Collaboration , F. Aharonian

A synchrotron self-Compton model for the VHE gamma-ray emission from Cen A

The H.E.S.S. experiment has reported the detection of very high energy (VHE: E>100 GeV) gamma-ray emission from the well-known radio-galaxy Cen A. Following this discovery, we refine the previous multi-blob synchrotron self-Compton (SSC)…

高能天体物理现象 · 物理学 2009-07-15 J. -P. Lenain , M. C. Medina , C. Boisson , G. E. Romero , H. Sol , A. Zech

Constraints on the location of $\gamma$-ray emitting region for a sample of blazars with radio core-shift measurements

We model simultaneous or quasi-simultaneous multi-band spectral energy distributions (SEDs) for a sample of 25 blazars that have radio core-shift measurements, where a one-zone leptonic model and Markov chain Monte Carlo technique are…

高能天体物理现象 · 物理学 2018-01-16 Linhui Wu , Qingwen Wu , Dahai Yan , Liang Chen , Xuliang Fan

TeV blazar gamma-ray emission produced by a cooling pile-up particle energy distribution function

We propose a time-dependent one-zone model based on a quasi-Maxwellian `pile-up' distribution in order to explain the time-averaged high energy emission of TeV blazars. The instantaneous spectra are the result of the synchrotron and…

天体物理学 · 物理学 2009-11-10 Ludovic Sauge , Gilles Henri

Impact of Spectral Coverage on Parameter recovery in Blazar Modeling

Understanding the impact of spectral coverage on parameter recovery is critical for accurate interpretation of blazar spectra. In this study, we examine how the data coverage influences the reliability of parameter estimation within the…

高能天体物理现象 · 物理学 2025-11-26 N. Sahakyan , D. Bégué , P. Giommi , H. Dereli-Bégué , Asaf Pe'er

The Sedentary Survey of Extreme High Energy Peaked BL Lacs. II. The Catalog and Spectral Properties

The multi-frequency `Sedentary Survey' is a deep, statistically complete, radio flux limited sample comprising 150 BL Lacertae objects distinguished by their extremely high X-ray to radio flux ratio, ranging from five hundred to over five…

天体物理学 · 物理学 2007-05-23 P. Giommi , S. Piranomonte , M. Perri , P. Padovani

Constraints on the Physical Parameters of TeV Blazars

We consider the constraints on the physical parameters of a homogeneous SSC model that can be derived from the spectral shape and variability of TeV blazars. Assuming that the relativistic electron spectrum is a broken power law, where the…

天体物理学 · 物理学 2009-10-30 F. Tavecchio , L. Maraschi , G. Ghisellini

A numerical model of parsec scale SSC morphologies and their radio emission

In current models for jets of AGNs and their emission a shortcoming in the description and understanding of the connection between the largest and smallest scales exists. In this work we present a spatially resolved SSC model extended to…

高能天体物理现象 · 物理学 2016-10-05 Stephan Richter , Felix Spanier

On the location of the gamma-ray emission region for 21 flat spectrum radio quasars with quasi-simultaneous observations

We try to infer the location of the GeV emission region for 21 flat spectrum radio quasars (FSRQs) with quasi-simultaneous spectral energy distributions (SEDs), in which the SEDs of 21 FSRQs are reproduced by the one-zone leptonic model…

高能天体物理现象 · 物理学 2015-06-17 Gang Cao , Jiancheng Wang

Implications of the VHE Gamma-Ray Detection of the Quasar 3C279

The MAGIC collaboration recently reported the detection of the quasar 3C279 at > 100 GeV gamma-ray energies. Here we present simultaneous optical (BVRI) and X-ray (RXTE PCA) data from the day of the VHE detection and discuss the…

天体物理学 · 物理学 2009-08-12 Markus Boettcher , Anita Reimer , Alan P. Marscher

Modelling synchrotron and synchrotron self-Compton emission of gamma-ray burst afterglows from radio to very-high energies

Synchrotron radiation from a decelerating blastwave is a widely accepted model of radio to X-ray afterglow emission from gamma-ray bursts (GRBs). GeV gamma-ray emission detected by the Fermi Large Area Telescope (LAT) and the duration of…

高能天体物理现象 · 物理学 2021-06-24 Jagdish C. Joshi , Soebur Razzaque