14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Rome Tor VergataIT2.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.2k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2k papers
- University of GlasgowGB2k papers
- National Institute for Subatomic PhysicsNL1.9k papers
- University of CambridgeGB1.9k papers
- University of BirminghamGB1.9k papers
- University of EdinburghGB1.9k papers
27 papers · 2 filters
Multiwavelength observations of GRB 110731A: GeV emission from onset to afterglow
LAT Collaboration, GBM Collaboration, Swift Collaboration +2
We report on the multiwavelength observations of the bright, long gamma-ray burst \GRB, by the \Fermi and \Swift observatories, and by the MOA and GROND optical telescopes. The ana…
Identification of the primary mass of inclined cosmic ray showers from depth of maximum and number of muons parameters
S. Riggi, A. Parra, G. Rodriguez +3
In the present work we carry out a study of the high energy cosmic rays mass identification capabilities of a hybrid detector employing both fluorescence telescopes and particle de…
Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations
H. J. Pletsch, L. Guillemot, H. Fehrmann +150
Millisecond pulsars, old neutron stars spun-up by accreting matter from a companion star, can reach high rotation rates of hundreds of revolutions per second. Until now, all such "…
A Search for Point Sources of EeV Neutrons
The Pierre Auger Collaboration
A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicat…
Chandra, Keck and VLA Observations of the Crab Nebula during the 2011-April Gamma-ray Flare
Martin C. Weisskopf, Allyn F. Tennant, Roger Blandford +21
We present results from our analysis of Chandra X-ray Observatory, W. M. Keck Observatory, and Karl G. Jansky Very Large Array (VLA) images of the Crab Nebula that were contemporan…
Long-term Monitoring on Mrk 501 for Its VHE gamma Emission and a Flare in October 2011
YBJ Collaboration, B. Bartoli, P. Bernardini +101
As one of the brightest active blazars in both X-ray and very high energy -ray bands, Mrk 501 is very useful for physics associated with jets from AGNs. The ARGO-YBJ experiment…
Multi messenger astronomy and CTA: TeV cosmic rays and electrons
Piergiorgio Picozza, Mirko Boezio
Cosmic rays are a sample of solar, galactic and extragalactic matter. Their origin and properties are one of the most intriguing question in modern astrophysics. The most energetic…
Observation of the TeV gamma-ray source MGRO J1908+06 with ARGO-YBJ
YBJ Collaboration
The extended gamma ray source MGRO J1908+06, discovered by the Milagro air shower detector in 2007, has been observed for about 4 years by the ARGO-YBJ experiment at TeV energies,…
GRB110721A: An extreme peak energy and signatures of the photosphere
The Fermi LAT Collaboration, the GBM Collaboration, A. Pe'er
GRB110721A was observed by the Fermi Gamma-ray Space Telescope using its two instruments the Large Area Telescope (LAT) and the Gamma-ray Burst Monitor (GBM). The burst consisted o…
Fermi LAT study of cosmic-rays and the interstellar medium in nearby molecular clouds
LAT collaboration
We report an analysis of the interstellar gamma-ray emission from the Chamaeleon, R Coronae Australis (R CrA), and Cepheus and Polaris flare regions with the Fermi Large Area Teles…
Multi-wavelength observations of blazar AO 0235+164 in the 2008-2009 flaring state
M. Ackermann, M. Ajello, J. Ballet +208
The blazar AO 0235+164 (z = 0.94) has been one of the most active objects observed by Fermi Large Area Telescope (LAT) since its launch in Summer 2008. In addition to the continuou…
Gamma-ray observations of the Orion Molecular Clouds with the Fermi Large Area Telescope
M. Ackermann, M. Ajello, A. Allafort +142
We report on the gamma-ray observations of giant molecular clouds Orion A and B with the Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope. The gamma-ray emis…
The characterization of the distant blazar GB6 J1239+0443 from flaring and low activity periods
L. Pacciani, I. Donnarumma, K. D. Denney +64
In 2008 AGILE and Fermi detected gamma-ray flaring activity from the unidentified EGRET source 3EG J1236+0457, recently associated with a flat spectrum radio quasar GB6 J1239+0443…
GeV Observations of Star-forming Galaxies with \textit{Fermi} LAT
Fermi LAT Collaboration, M. Ackermann, M. Ajello +127
Recent detections of the starburst galaxies M82 and NGC 253 by gamma-ray telescopes suggest that galaxies rapidly forming massive stars are more luminous at gamma-ray energies comp…
Fermi LAT Search for Dark Matter in Gamma-ray Lines and the Inclusive Photon Spectrum
LAT Collaboration, M. Ackermann, M. Ajello +117
Dark matter particle annihilation or decay can produce monochromatic gamma-ray lines and contribute to the diffuse gamma-ray background. Flux upper limits are presented for gamma-r…
A First Search for coincident Gravitational Waves and High Energy Neutrinos using LIGO, Virgo and ANTARES data from 2007
The ANTARES Collaboration, the LIGO Scientific Collaboration, the Virgo Collaboration +959
We present the results of the first search for gravitational wave bursts associated with high energy neutrinos. Together, these messengers could reveal new, hidden sources that are…
Search for gravitational waves associated with gamma-ray bursts during LIGO science run 6 and Virgo science runs 2 and 3
The LIGO Scientific Collaboration, Virgo Collaboration, J. Abadie +807
We present the results of a search for gravitational waves associated with 154 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments in 2009-2010, dur…
Swift follow-up observations of candidate gravitational-wave transient events
P. A. Evans, J. K. Fridriksson, N. Gehrels +813
We present the first multi-wavelength follow-up observations of two candidate gravitational-wave (GW) transient events recorded by LIGO and Virgo in their 2009-2010 science run. Th…
Fermi-LAT Observations of the Diffuse Gamma-Ray Emission: Implications for Cosmic Rays and the Interstellar Medium
LAT Collaboration
The gamma-ray sky >100 MeV is dominated by the diffuse emissions from interactions of cosmic rays with the interstellar gas and radiation fields of the Milky Way. Observations of t…
Measurement of Cosmic Ray spectrum and Anisotropy with ARGO-YBJ
G. DI SCIASCIO
In this paper we report on the observation of the anisotropy of cosmic ray arrival direction at different angular scales with ARGO-YBJ. Evidence of new few-degree excesses througho…
Anisotropies in the diffuse gamma-ray background measured by the Fermi LAT
M. Ackermann, M. Ajello, A. Albert +134
The contribution of unresolved sources to the diffuse gamma-ray background could induce anisotropies in this emission on small angular scales. We analyze the angular power spectrum…
A search for ultra-high energy neutrinos in highly inclined events at the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +497
The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavours above 0.1 EeV. These interact through charged and neutral currents in the atmosphere…
Constraining the High-Energy Emission from Gamma-ray Bursts with Fermi
LAT Collaboration, GBM Collaboration
We examine 288 GRBs detected by the Fermi Gamma-ray Space Telescope's Gamma-ray Burst Monitor (GBM) that fell within the field-of-view of Fermi's Large Area Telescope (LAT) during…
Measurement of the cosmic ray antiproton/proton flux ratio at TeV energies with the ARGO-YBJ detector
YBJ Collaboration
Cosmic ray antiprotons provide an important probe to study the cosmic ray propagation in the interstellar space and to investigate the existence of dark matter. Acting the Earth-Mo…