Institution
University of Perugia
Education•Perugia, Umbria, Italy•
About: University of Perugia is a education organization based out in Perugia, Umbria, Italy. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 13365 authors who have published 39516 publications receiving 1265601 citations. The organization is also known as: Universitá degli Studi di Perugia & Universita degli Studi di Perugia.
Papers published on a yearly basis
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TL;DR: In this paper, a catalogue of 442 rainfall events with landslides in the Abruzzo, Marche, and Umbria regions, central Italy, between February 2002 and August 2010 was compiled, and the duration D (in hours) and the cumulated (total) event rainfall E (in mm) using rainfall measurements obtained from a dense network of 150 rain gauges.
235 citations
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TL;DR: It is shown that BALB/c mice had higher abundance and diversity of IgAs than C57BL/6 mice and that this correlated with increased microbiota diversity, and polyreactive IgAs mediated the entrance of non-invasive bacteria to Peyer's patches, independently of CX3CR1(+) phagocytes.
235 citations
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TL;DR: In this paper, the Fermi Large Area Telescope was used to measure the gamma-ray emission in the second Galactic quadrant at 100 deg < l < 145 deg and -15 deg < b < +30 deg.
Abstract: We present the analysis of the interstellar gamma-ray emission measured by the Fermi Large Area Telescope toward a region in the second Galactic quadrant at 100 deg < l < 145 deg and -15 deg < b < +30 deg. This region encompasses the prominent Gould-Belt clouds of Cassiopeia, Cepheus and the Polaris flare, as well as atomic and molecular complexes at larger distances, like that associated with NGC 7538 in the Perseus arm. The good kinematic separation in velocity between the local, Perseus, and outer arms, and the presence of massive complexes in each of them make this region well suited to probe cosmic rays and the interstellar medium beyond the solar circle. The gamma-ray emissivity spectrum of the gas in the Gould Belt is consistent with expectations based on the locally measured cosmic-ray spectra. The gamma-ray emissivity decreases from the Gould Belt to the Perseus arm, but the measured gradient is flatter than expectations for cosmic-ray sources peaking in the inner Galaxy as suggested by pulsars. The Xco=N(H2)/W(CO) conversion factor is found to increase from (0.87 +- 0.05) 10^20 cm^-2 (K km s^-1)^-1 in the Gould Belt to (1.9 +- 0.2) 10^20 cm^-2 (K km s^-1)^-1 in the Perseus arm. We derive masses for the molecular clouds under study. Dark gas, not properly traced by radio and microwave surveys, is detected in the Gould Belt through a correlated excess of dust and gamma-ray emission: its mass amounts to ~50% of the CO-traced mass.
235 citations
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TL;DR: In this paper, the number of light neutrino species is found to be Nv=3.30% CL with the constraints of the standard electroweak model, which rules out the possibility of a fourth type of LN at 98% CL.
234 citations
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Fermilab1, Stanford University2, University of Chicago3, Texas A&M University4, Stockholm University5, University of Pisa6, Stony Brook University7, Centre national de la recherche scientifique8, Royal Swedish Academy of Sciences9, Istituto Nazionale di Fisica Nucleare10, University of California, Santa Cruz11, University of Perugia12, University of Udine13, University of Bari14, Goddard Space Flight Center15, University of Göttingen16, Hiroshima University17, Purdue University18, University of Nova Gorica19, University of Trieste20, Space Telescope Science Institute21, University of Surrey22, Spanish National Research Council23, University College London24, Carnegie Institution for Science25, University of Pennsylvania26, Institut d'Astrophysique de Paris27, SLAC National Accelerator Laboratory28, Institut de Ciències de l'Espai29, National Center for Supercomputing Applications30, Institute of Cosmology and Gravitation, University of Portsmouth31, Ludwig Maximilian University of Munich32, California Institute of Technology33, University of Michigan34, Catalan Institution for Research and Advanced Studies35, Autonomous University of Barcelona36, Max Planck Society37, University of Illinois at Urbana–Champaign38, Ohio State University39, Santa Cruz Institute for Particle Physics40, Australian Astronomical Observatory41, Argonne National Laboratory42, Universidade Federal do Rio Grande do Sul43, Brookhaven National Laboratory44, University of Sussex45, University of Manchester46
TL;DR: In this article, the authors search for gamma-ray emission coincident with the positions of these new objects in six years of Fermi Large Area Telescope data and find no significant excesses of gamma radiation emission.
Abstract: Due to their proximity, high dark-matter (DM) content, and apparent absence of non-thermal processes, Milky Way dwarf spheroidal satellite galaxies (dSphs) are excellent targets for the indirect detection of DM. Recently, eight new dSph candidates were discovered using the first year of data from the Dark Energy Survey (DES). We searched for gamma-ray emission coincident with the positions of these new objects in six years of Fermi Large Area Telescope data. We found no significant excesses of gamma-ray emission. Under the assumption that the DES candidates are dSphs with DM halo properties similar to the known dSphs, we computed individual and combined limits on the velocity-averaged DM annihilation cross section for these new targets. If the estimated DM content of these dSph candidates is confirmed, they will constrain the annihilation cross section to lie below the thermal relic cross section for DM particles with masses ≲ 20 {GeV} annihilating via the b\bar{b} or tau+tau- channels.
234 citations
Authors
Showing all 13488 results
Name | H-index | Papers | Citations |
---|---|---|---|
Michael Grätzel | 248 | 1423 | 303599 |
Luigi Ferrucci | 193 | 1601 | 181199 |
Tobin J. Marks | 159 | 1621 | 111604 |
Johan Auwerx | 158 | 653 | 95779 |
Tony Pawson | 150 | 425 | 85196 |
Jack Hirsh | 146 | 734 | 86332 |
Alexander Belyaev | 142 | 1895 | 100796 |
R. L. McCarthy | 141 | 1238 | 115696 |
Harvey B Newman | 139 | 1594 | 88308 |
Guido Tonelli | 138 | 1458 | 97248 |
Elias Campo | 135 | 761 | 85160 |
Alberto Messineo | 134 | 1511 | 96492 |
Franco Ligabue | 134 | 1404 | 95389 |
Roberto Tenchini | 133 | 1390 | 94541 |
R. Bartoldus | 132 | 1624 | 97405 |