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Fermi Detection of γ-ray emission from the M2 Soft X-ray Flare on 2010 June 12
Fermi GBM Collaboration, Fermi LAT Collaboration, B. R. Dennis +2
The GOES M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an ~50 s impulsive…
Detection of very-high energy γ-ray emission from NGC 1275 by the MAGIC telescopes
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +161
We report on the detection of very-high energy (VHE, E>100 GeV) gamma-ray emission from NGC 1275, the central radio galaxy of the Perseus cluster of galaxies. The source has been d…
The cosmic-ray and gas content of the Cygnus region as measured in gamma rays by the Fermi Large Area Telescope
the Fermi LAT Collaboration
The Cygnus region hosts a giant molecular-cloud complex which actively forms massive stars. Interactions of cosmic rays with interstellar gas and radiation fields make it shine at…
Detection of the gamma-ray binary LS I +61 303 in a low flux state at Very High Energy gamma-rays with the MAGIC Telescopes in 2009
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +153
We present very high energy (VHE, E > 100 GeV) γ-ray observations of the γ-ray binary system LS I+61 303 obtained with the MAGIC stereo system between 2009 October and 2010 January…
Fermi Detection of a Luminous Gamma-ray Pulsar in a Globular Cluster
The Fermi LAT Collaboration
We report the Fermi Large Area Telescope detection of gamma-ray (>100 megaelectronvolts) pulsations from pulsar J1823-3021A in the globular cluster NGC 6624 with high significance…
Simultaneous multi-wavelength campaign on PKS 2005-489 in a high state
The H. E. S. S. Collaboration, the Fermi LAT Collaboration, : +345
The high-frequency peaked BL Lac object PKS 2005-489 was the target of a multi-wavelength campaign with simultaneous observations in the TeV gamma-ray (H.E.S.S.), GeV gamma-ray (Fe…
MAGIC contributions to the 32nd International Cosmic Ray Conference
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +160
Compilation of the papers contributed by the MAGIC collaboration to the 32nd International Cosmic Ray Conference (ICRC 2011), which took place between August 11 and 18, 2011 in Bei…
Constraining Cosmic Rays and Magnetic Fields in the Perseus Galaxy Cluster with TeV observations by the MAGIC telescopes
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +161
Galaxy clusters are being assembled today in the most energetic phase of hierarchical structure formation which manifests itself in powerful shocks that contribute to a substantial…
The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87
The H. E. S. S. Collaboration, :, A. Abramowski +442
Abridged: The giant radio galaxy M 87 with its proximity, famous jet, and very massive black hole provides a unique opportunity to investigate the origin of very high energy (VHE;…
MAGIC low energy observation of GRB090102 afterglow
A. Carosi, L. A. Antonelli, U. Barres de Almeida +11
Hints for a GeV component in the emission from GRBs are known since the EGRET observations during the '90s and they have been recently confirmed by the data of the Fermi satellite.…
MAGIC and Multi-Wavelength Observations of three HBLs in 2008
S. Rügamer, E. Angelakis, D. Bastieri +9
The high-frequency peaked blazars and known TeV emitters 1ES 1011+496, Mrk 180 and 1ES 2344+514 have been observed in the course of multi-wavelength campaigns in 2008, covering the…
Fermi Large Area Telescope Observations of the Supernova Remnant G8.7-0.1
LAT Collaboration
We present a detailed analysis of the GeV gamma-ray emission toward the supernova remnant (SNR) G8.7-0.1 with the Large Area Telescope (LAT) onboard the \emph{Fermi} Gamma-ray Spac…
MAGIC and Multi-Wavelength Observations of Mrk 180 and 1ES 2344+514 in 2008
S. Rügamer, E. Angelakis, D. Bastieri +14
Simultaneous multi-wavelength (MW) campaigns are the most promising approaches to investigate the still unrevealed nature of blazars, active galactic nuclei which are variable on a…
MAGIC observations of the giant radio galaxy M87 in a low emission state between 2005 and 2007
Karsten Berger, Dijana Dominis Prester, Fabrizio Tavecchio +1
We present the results of a long M87 monitoring campaign in very high energy -rays with the MAGIC-I Cherenkov telescope. A total of 150 hours of data was gathered between 2005 a…
Phase-resolved energy spectra of the Crab Pulsar in the range of 50-400 GeV measured with the MAGIC Telescopes
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +155
We use 73 h of stereoscopic data taken with the MAGIC telescopes to investigate the very high-energy (VHE) gamma-ray emission of the Crab pulsar. Our data show a highly significant…
Search for Gamma-ray Emission from X-ray Selected Seyfert Galaxies with Fermi-LAT
LAT Collaboration
We report on a systematic investigation of the gamma-ray properties of 120 hard X-ray-selected Seyfert galaxies classified as `radio-quiet' objects, utilizing the three-year accumu…
Measurement of separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope
The Fermi LAT Collaboration, M. Ackermann, M. Ajello +148
We measured separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope. Because the instrument does not have an onboard magnet, we distinguish the two sp…
Gamma-Ray and Parsec-Scale Jet Properties of a Complete Sample of Blazars From the MOJAVE Program
M. L. Lister, M. Aller, H. Aller +142
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 mis…
The radio/gamma-ray connection in Active Galactic Nuclei in the era of the Fermi Large Area Telescope
M. Ackermann, M. Ajello, A. Allafort +144
We present a detailed statistical analysis of the correlation between radio and gamma-ray emission of the Active Galactic Nuclei (AGN) detected by Fermi during its first year of op…
Observations of the Crab pulsar between 25 GeV and 100 GeV with the MAGIC I telescope
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +156
We report on the observation of -rays above 25\,GeV from the Crab pulsar (PSR B0532+21) using the MAGIC I telescope. Two data sets from observations during the winter period 200…
Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
LAT Collaboration, M. Ackermann, M. Ajello +150
Satellite galaxies of the Milky Way are among the most promising targets for dark matter searches in gamma rays. We present a search for dark matter consisting of weakly interactin…
Performance of the MAGIC stereo system obtained with Crab Nebula data
MAGIC Collaboration, J. Aleksić, E. A. Alvarez +153
MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes located in the Canary island of La Palma. Since autumn 2009 both telescopes have been working together in stereosc…
Fermi Large Area Telescope Second Source Catalog
LAT Collaboration
We present the second catalog of high-energy gamma-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fe…
The Second Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
LAT Collaboration
The second catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope (LAT) in two years of scientific operation is presented. The Second LAT AGN Catalog (…