相关论文: On the identification of the Fermi/LAT source 0FGL…

Bright AGN Source List from the First Three Months of the Fermi Large Area Telescope All-Sky Survey

The first three months of sky-survey operation with the Fermi Gamma Ray Space Telescope (Fermi) Large Area Telescope (LAT) reveals 132 bright sources at |b|>10 deg with test statistic greater than 100 (corresponding to about 10 sigma). Two…

高能天体物理现象 · 物理学 2009-09-30 A. A. Abdo

Multi-wavelength variability of CGRaBS J0733+0456: identifying a distant $\gamma$-ray blazar at z = 3.01

We report on OVRO, WISE, Swift and Fermi-LAT observations of the high redshift blazar CGRaBS J0733+0456, from which significant flux variations in radio, infrared (IR) as well as $\gamma$-ray domains are detected. Particularly, the…

高能天体物理现象 · 物理学 2019-07-10 Neng-Hui Liao , Li-Ming Dou , Ning Jiang , Yi-Bo Wang , Yi-Zhong Fan , Ting-Gui Wang

Discovery of Pulsed Gamma Rays from the Young Radio Pulsar PSR J1028-5819 with the Fermi Large Area Telescope

Radio pulsar PSR J1028-5819 was recently discovered in a high-frequency search (at 3.1 GHz)in the error circle of the EGRET source 3EG J1027-5817. The spin-down power of this young pulsar is great enough to make it very likely the…

高能天体物理现象 · 物理学 2011-02-11 LAT Collaboration

Very-high-energy gamma-ray emission from high-redshift blazars

We study the possible detection of and properties of very high-energy (VHE) gamma-ray emission (in the energy band above 100 GeV) from high redshift sources. We report on the detection of VHE gamma-ray flux from blazars with redshifts…

高能天体物理现象 · 物理学 2015-08-20 A. Neronov , D. V. Semikoz , A. M. Taylor , Ie. Vovk

Gamma-Ray and Parsec-Scale Jet Properties of a Complete Sample of Blazars From the MOJAVE Program

We investigate the Fermi LAT gamma-ray and 15 GHz VLBA radio properties of a joint gamma-ray- and radio-selected sample of AGNs obtained during the first 11 months of the Fermi mission (2008 Aug 4 - 2009 Jul 5). Our sample contains the…

宇宙学与河外天体物理 · 物理学 2019-08-15 M. L. Lister , M. Aller , H. Aller , T. Hovatta , K. I. Kellermann , Y. Y. Kovalev , E. T. Meyer , A. B. Pushkarev , E. Ros , M. Ackermann , E. Antolini , L. Baldini , J. Ballet , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , B. Berenji , R. D. Blandford , E. D. Bloom , M. Boeck , E. Bonamente , A. W. Borgland , J. Bregeon , M. Brigida , P. Bruel , R. Buehler , S. Buson , G. A. Caliandro , R. A. Cameron , P. A. Caraveo , J. M. Casandjian , E. Cavazzuti , C. Cecchi , C. S. Chang , E. Charles , A. Chekhtman , C. C. Cheung , J. Chiang , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , S. Cutini , F. de Palma , C. D. Dermer , E. do Couto e Silva , P. S. Drell , A. Drlica-Wagner , C. Favuzzi , S. J. Fegan , E. C. Ferrara , J. Finke , W. B. Focke , P. Fortin , Y. Fukazawa , P. Fusco , F. Gargano , D. Gasparrini , N. Gehrels , S. Germani , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , I. A. Grenier , S. Guiriec , D. Hadasch , M. Hayashida , E. Hays , D. Horan , R. E. Hughes , G. Jóhannesson , A. S. Johnson , M. Kadler , H. Katagiri , J. Kataoka , J. Knödlseder , M. Kuss , J. Lande , F. Longo , F. Loparco , B. Lott , M. N. Lovellette , P. Lubrano , G. M. Madejski , M. N. Mazziotta , W. McConville , J. E. McEnery , J. Mehault , P. F. Michelson , T. Mizuno , C. Monte , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , M. Naumann-Godo , S. Nishino , P. L. Nolan , J. P. Norris , E. Nuss , M. Ohno , T. Ohsugi , A. Okumura , N. Omodei , E. Orlando , M. Ozaki , D. Paneque , D. Parent , M. Pesce-Rollins , M. Pierbattista , F. Piron , G. Pivato , S. Rainò , A. Readhead , A. Reimer , O. Reimer , J. L. Richards , S. Ritz , H. F. -W. Sadrozinski , C. Sgrò , M. S. Shaw , E. J. Siskind , G. Spandre , P. Spinelli , H. Takahashi , T. Tanaka , J. G. Thayer , J. B. Thayer , D. J. Thompson , G. Tosti , A. Tramacere , E. Troja , T. L. Usher , J. Vandenbroucke , V. Vasileiou , G. Vianello , V. Vitale , A. P. Waite , P. Wang , B. L. Winer , K. S. Wood , S. Zimmer

On the redshift of the very high energy {\gamma}-ray BL Lac object S2 0109+22

The determination of the redshift of extragalactic gamma ray sources is of fundamental importance for the interpretation of their emission models and extragalactic population studies, AGN classification schemes, and to study the interaction…

星系天体物理 · 物理学 2016-03-16 Simona Paiano , Marco Landoni , Renato Falomo , Riccardo Scarpa , Aldo Treves

IGR J22517+2218=MG3 J225155+2217: a new gamma-ray lighthouse in the distant Universe

We report on the identification of a new soft gamma ray source, namely IGR J22517+2218, detected with IBIS/INTEGRAL. The source, which has an observed 20-100 keV flux of ~4 x10^-11 erg cm-2 s-1, is spatially coincident with MG3…

天体物理学 · 物理学 2009-11-13 L. Bassani , R. Landi , A. Malizia , M. T. Fiocchi , A. Bazzano , A. J. Bird , A. J. Dean , N. Gehrels , P. Giommi , P. Ubertini

HAWC and Fermi-LAT Detection of Extended Emission from the Unidentified Source 2HWC J2006+341

The discovery of the TeV point source 2HWC J2006+341 was reported in the second HAWC gamma-ray catalog. We present a follow-up study of this source here. The TeV emission is best described by an extended source with a soft spectrum. At GeV…

高能天体物理现象 · 物理学 2020-11-11 A. Albert , R. Alfaro , C. Alvarez , J. R. Angeles Camacho , M. Araya , J. C. Arteaga-Velázquez , K. P. Arunbabu , D. Avila Rojas , H. A. Ayala Solares , V. Baghmanyan , E. Belmont-Moreno , C. Brisbois , K. S. Caballero-Mora , A. Carramiñana , S. Casanova , U. Cotti , E. De la Fuente , C. de León , R. Diaz Hernandez , B. L. Dingus , M. A. DuVernois , M. Durocher , J. C. Díaz-Vélez , C. Espinoza , H. Fleischhack , N. Fraija , A. Galván-Gámez , D. Garcia , J. A. García-González , F. Garfias , M. M. González , J. A. Goodman , J. P. Harding , B. Hona , D. Huang , F. Hueyotl-Zahuantitla , P. Hüntemeyer , A. Iriarte , A. Jardin-Blicq , V. Joshi , H. León Vargas , J. T. Linnemann , A. L. Longinotti , R. López-Coto , G. Luis-Raya , J. Lundeen , K. Malone , O. Martinez , J. Martínez-Castro , J. A. Matthews , P. Miranda-Romagnoli , E. Moreno , M. Mostafá , L. Nellen , M. U. Nisa , R. Noriega-Papaqui , N. Omodei , A. Peisker , E. G. Pérez-Pérez , C. D. Rho , D. Rosa-González , F. Salesa Greus , A. Sandoval , M. Schneider , R. W. Springer , K. Tollefson , I. Torres , R. Torres-Escobedo , F. Ureña-Mena , L. Villaseñor , T. Weisgarber , E. Willox , A. Zepeda , H. Zhou

Fermi-LAT Observations of Markarian 421: the Missing Piece of its Spectral Energy Distribution

We report on the gamma-ray activity of the high-synchrotron-peaked BL Lacertae object Mrk 421 during the first 1.5 years of Fermi operation, from 2008 August 5 to 2010 March 12. We find that the Large Area Telescope (LAT) gamma-ray spectrum…

高能天体物理现象 · 物理学 2015-05-28 LAT collaboration , A. A. Abdo et al. , the MAGIC collaboration , : , J. Aleksić , the GASP-WEBT consortium , multi-wavelength partners

PKS 1502+106: A high-redshift Fermi blazar at extreme angular resolution. Structural dynamics with VLBI imaging up to 86 GHz

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…

高能天体物理现象 · 物理学 2016-01-27 V. Karamanavis , L. Fuhrmann , T. P. Krichbaum , E. Angelakis , J. Hodgson , I. Nestoras , I. Myserlis , J. A. Zensus , A. Sievers , S. Ciprini

Fermi Large Area Telescope Observation of a Gamma-ray Source at the Position of Eta Carinae

The Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope detected a gamma-ray source that is spatially consistent with the location of Eta Carinae. This source has been persistently bright since the beginning of the LAT…

高能天体物理现象 · 物理学 2012-08-27 The Fermi LAT collaboration

Very high energy Fermi/LAT detection of HESS J0632+057

We report on the results of ~7 yrs of the very-high energy (10-600 GeV) observations of HESS J0632+057 with FERMI/LAT. In the highest energy band, 200-600 GeV, the source is clearly detected with the statistical significance >3.6sigma at…

高能天体物理现象 · 物理学 2017-08-28 D. Malyshev , M. Chernyakova

The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591

The high-frequency-peaked BL Lacertae object RGB J0710+591 was observed in the very high-energy (VHE; E > 100 GeV) wave band by the VERITAS array of atmospheric Cherenkov telescopes. The observations, taken between 2008 December and 2009…

高能天体物理现象 · 物理学 2015-05-18 V. A. Acciari , E. Aliu , T. Arlen , T. Aune , M. Bautista , M. Beilicke , W. Benbow , M. Böttcher , D. Boltuch , S. M. Bradbury , J. H. Buckley , V. Bugaev , K. Byrum , A. Cannon , A. Cesarini , L. Ciupik , W. Cui , R. Dickherber , C. Duke , A. Falcone , J. P. Finley , G. Finnegan , L. Fortson , A. Furniss , N. Galante , D. Gall , K. Gibbs , G. H. Gillanders , S. Godambe , J. Grube , R. Guenette , G. Gyuk , D. Hanna , J. Holder , C. M. Hui , T. B. Humensky , A. Imran , P. Kaaret , N. Karlsson , M. Kertzman , D. Kieda , A. Konopelko , H. Krawczynski , F. Krennrich , M. J. Lang , A. Lamerato , S. LeBohec , G. Maier , S. McArthur , A. McCann , M. McCutcheon , P. Moriarty , R. Mukherjee , R. A. Ong , A. N. Otte , D. Pandel , J. S. Perkins , D. Petry , A. Pichel , M. Pohl , J. Quinn , K. Ragan , L. C. Reyes , P. T. Reynolds , E. Roache , H. J. Rose , P. Roustazadeh , M. Schroedter , G. H. Sembroski , G. Demet Senturk , A. W. Smith , D. Steele , S. P. Swordy , G. Tešić , M. Theiling , S. Thibadeau , A. Varlotta , V. V. Vassiliev , S. Vincent , R. G. Wagner , S. P. Wakely , J. E. Ward , T. C. Weekes , A. Weinstein , T. Weisgarber , D. A. Williams , S. Wissel , M. Wood , B. Zitzer , M. Ackermann , M. Ajello , E. Antolini , L. Baldini , J. Ballet , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , B. Berenji , R. D. Blandford , E. D. Bloom , E. Bonamente , A. W. Borgland , A. Bouvier , J. Bregeon , M. Brigida , P. Bruel , R. Buehler , S. Buson , G. A. Caliandro , R. A. Cameron , P. A. Caraveo , S. Carrigan , J. M. Casandjian , E. Cavazzuti , C. Cecchi , Ö. Çelik , E. Charles , A. Chekhtman , C. C. Cheung , J. Chiang , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , C. D. Dermer , F. de Palma , E. do Couto e Silva , P. S. Drell , R. Dubois , D. Dumora , C. Farnier , C. Favuzzi , S. J. Fegan , P. Fortin , M. Frailis , Y. Fukazawa , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , N. Gehrels , S. Germani , B. Giebels , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , I. A. Grenier , J. E. Grove , S. Guiriec , E. Hays , D. Horan , R. E. Hughes , G. Jóhannesson , A. S. Johnson , W. N. Johnson , T. Kamae , H. Katagiri , J. Kataoka , J. Knödlseder , M. Kuss , J. Lande , L. Latronico , S. -H. Lee , M. Llena Garde , F. Longo , F. Loparco , B. Lott , M. N. Lovellette , P. Lubrano , A. Makeev , M. N. Mazziotta , P. F. Michelson , W. Mitthumsiri , T. Mizuno , A. A. Moiseev , C. Monte , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , P. L. Nolan , J. P. Norris , E. Nuss , M. Ohno , T. Ohsugi , N. Omodei , E. Orlando , J. F. Ormes , D. Paneque , J. H. Panetta , V. Pelassa , M. Pepe , M. Pesce-Rollins , F. Piron , T. A. Porter , S. Rainò , R. Rando , M. Razzano , A. Reimer , O. Reimer , J. Ripken , A. Y. Rodriguez , M. Roth , H. F. -W. Sadrozinski , D. Sanchez , A. Sander , J. D. Scargle , C. Sgrò , E. J. Siskind , P. D. Smith , G. Spandre , P. Spinelli , M. S. Strickman , D. J. Suson , H. Takahashi , T. Tanaka , J. B. Thayer , J. G. Thayer , D. J. Thompson , L. Tibaldo , D. F. Torres , G. Tosti , A. Tramacere , T. L. Usher , V. Vasileiou , N. Vilchez , V. Vitale , A. P. Waite , P. Wang , B. L. Winer , K. S. Wood , Z. Yang , T. Ylinen , M. Ziegler

Fermi-LAT detection of the supernova remnant G312.4-0.4 in the vicinity of 4FGL J1409.1-6121e

Gamma-ray emission provides constraints on the non-thermal radiation processes at play in astrophysical particle accelerators. This allows both the nature of accelerated particles and the maximum energy that they can reach to be determined.…

高能天体物理现象 · 物理学 2023-11-06 Pauline Chambery , Marianne Lemoine-Goumard , Armelle Jardin-Blicq , Atreyee Sinha , J. Eagle

Fermi-LAT detection of GeV $\gamma$-ray emission from Type Ia supernova remnant G272.2-3.2

A new $\gamma$-ray source with a significance level of approximately 5$\sigma$ was reported in the region of SNR G272.2-3.2, analysing the approximately 12.4 years of observation data from the Fermi Large Area Telescope (Fermi-LAT). Its…

高能天体物理现象 · 物理学 2021-09-08 Yun-Chuan Xiang , Ze-Jun Jiang

Extreme BL Lacs: probes for cosmology and UHECR candidates

High-energy observations of extreme BL Lac objects, such as 1ES0229+200 or 1ES 0347-121, recently focused interest both for blazar and jet physics and for the implication on the extragalactic background light and intergalactic magnetic…

高能天体物理现象 · 物理学 2015-12-17 F. Tavecchio , G. Bonnoli

A gamma-ray flare from TXS 1508+572: characterizing the jet of a $z=4.31$ blazar in the early Universe

Blazars can be detected from very large distances due to their high luminosity. However, the detection of $\gamma$-ray emission of blazars beyond $z=3$ has only been confirmed for a small number of sources. Such observations probe the…

高能天体物理现象 · 物理学 2024-08-05 Andrea Gokus , Markus Böttcher , Manel Errando , Michael Kreter , Jonas Heßdörfer , Florian Eppel , Matthias Kadler , Paul S. Smith , Petra Benke , Leonid I. Gurvits , Alex Kraus , Mikhail Lisakov , Felicia McBride , Eduardo Ros , Florian Rösch , Jörn Wilms

Fermi Large Area Telescope Observations of the Active Galaxy 4C +55.17: Steady, Hard Gamma-Ray Emission and its Implications

We report Fermi/LAT observations and broad-band spectral modeling of the radio-loud active galaxy 4C +55.17 (z=0.896), formally classified as a flat-spectrum radio quasar. Using 19 months of all-sky survey Fermi/LAT data, we detect a…

高能天体物理现象 · 物理学 2015-05-28 W. McConville , L. Ostorero , R. Moderski , Ł. Stawarz , C. C. Cheung , M. Ajello , A. Bouvier , J. Bregeon , D. Donato , J. Finke , A. Furniss , J. E. McEnery , M. E. Monzani , M. Orienti , L. C. Reyes , A. Rossetti , D. A. Williams

Systematic search for VHE gamma-ray emission from X-ray bright high-frequency BL Lac objects

All but three (M87, BL Lac and 3C 279) extragalactic sources detected so far at very high energy (VHE) gamma-rays belong to the class of high-frequency peaked BL Lac (HBL) objects. This suggested to us a systematic scan of candidate sources…

天体物理学 · 物理学 2019-08-12 M. Meyer

The TeV spectrum of H1426+428

The BL Lac object H1426+428 was recently detected as a high energy gamma-ray source by the VERITAS collaboration (Horan et al. 2002). We have reanalyzed the 2001 portion of the data used in the detection in order to examine the spectrum of…

天体物理学 · 物理学 2008-11-26 D. Petry , I. H. Bond , S. M. Bradbury , J. H. Buckley , D. A. Carter-Lewis , W. Cui , C. Duke , I. de la Calle Perez , A. Falcone , D. J. Fegan , S. J. Fegan , J. P. Finley , J. A. Gaidos , K. Gibbs , S. Gammell , J. Hall , T. A. Hall , A. M. Hillas , J. Holder , D. Horan , M. Jordan , M. Kertzman , D. Kieda , J. Kildea , J. Knapp , K. Kosack , F. Krennrich , S. LeBohec , P. Moriarty , D. Müller , T. N. Nagai , R. Ong , M. Page , R. Pallassini , B. Power-Mooney , J. Quinn , N. W. Reay , P. T. Reynolds , H. J. Rose , M. Schroedter , G. H. Sembroski , R. Sidwell , N. Stanton , S. P. Swordy , V. V. Vassiliev , S. P. Wakely , G. Walker , T. C. Weekes