R. Desiante
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View article: A Decade of Gamma-Ray Bursts Observed by Fermi-LAT: The Second GRB Catalog
A Decade of Gamma-Ray Bursts Observed by Fermi-LAT: The Second GRB Catalog Open
The Large Area Telescope (LAT) aboard the Fermi spacecraft routinely observes high-energy emission from gamma-ray bursts (GRBs). Here we present the second catalog of LAT-detected GRBs, covering the first 10 yr of operations, from 2008 to …
View article: Erratum: “Search for Gamma-Ray Emission from the Coma Cluster with Six Years of Fermi-LAT Data” (2016, ApJ, 819, 149)
Erratum: “Search for Gamma-Ray Emission from the Coma Cluster with Six Years of Fermi-LAT Data” (2016, ApJ, 819, 149) Open
The naming of the sources in Tables 3 and 4 in the Appendix of the published paper did not follow IAU conventions; the corrected nomenclature will enter the NASA Extragalactic Database. Tables 3 and 4 should thus read as follows. (Table Pr…
View article: 3FHL: The Third Catalog of Hard Fermi-LAT Sources
3FHL: The Third Catalog of Hard Fermi-LAT Sources Open
We present a catalog of sources detected above 10 GeV by the Fermi Large Area Telescope (LAT) in the first 7 years of data using the Pass 8 event-level analysis. This is the Third Catalog of Hard Fermi -LAT Sources (3FHL), containing 1556 …
View article: Fermi Observations of the LIGO Event GW170104
Fermi Observations of the LIGO Event GW170104 Open
We present the Fermi Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT) observations of the LIGO binary black hole merger (BBH) event GW170104. No candidate electromagnetic counterpart was detected by either GBM or LAT. A detaile…
View article: Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV
Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV Open
The spatial extension of a γ -ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ -ray sources is greatly improved by the n…
View article: The Fermi Galactic Center GeV Excess and Implications for Dark Matter
The Fermi Galactic Center GeV Excess and Implications for Dark Matter Open
The region around the Galactic Center (GC) is now well established to be brighter at energies of a few GeV than what is expected from conventional models of diffuse gamma-ray emission and catalogs of known gamma-ray sources. We study the G…
View article: Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope
Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope Open
We present a measurement of the cosmic-ray electron+positron spectrum between 7 GeV and 2 TeV performed with almost seven years of data collected with the Fermi Large Area Telescope. We find that the spectrum is well fit by a broken power …
View article: Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data
Search for Cosmic-Ray Electron and Positron Anisotropies with Seven Years of Fermi Large Area Telescope Data Open
The Large Area Telescope on board the Fermi Gamma-ray Space Telescope has collected the largest ever sample of high-energy cosmic-ray electron and positron events since the beginning of its operation. Potential anisotropies in the arrival …
View article: Gamma-Ray Blazars within the First 2 Billion Years
Gamma-Ray Blazars within the First 2 Billion Years Open
The detection of high-redshift ( ) blazars enables the study of the evolution of the most luminous relativistic jets over cosmic time. More importantly, high-redshift blazars tend to host massive black holes and can be used to constrain th…
View article: Observations of M31 and M33 with the Fermi Large Area Telescope: A Galactic Center Excess in Andromeda?
Observations of M31 and M33 with the Fermi Large Area Telescope: A Galactic Center Excess in Andromeda? Open
The Fermi Large Area Telescope (LAT) has opened the way for comparative studies of cosmic rays (CRs) and high-energy objects in the Milky Way (MW) and in other, external, star-forming galaxies. Using 2 yr of observations with the Fermi LAT…
View article: Fermi-LAT Observations of High-energy Behind-the-limb Solar Flares
Fermi-LAT Observations of High-energy Behind-the-limb Solar Flares Open
We report on the Fermi -LAT detection of high-energy emission from the behind-the-limb (BTL) solar flares that occurred on 2013 October 11, and 2014 January 6 and September 1. The Fermi -LAT observations are associated with flares from act…
View article: SEARCHING THE GAMMA-RAY SKY FOR COUNTERPARTS TO GRAVITATIONAL WAVE SOURCES: FERMI GAMMA-RAY BURST MONITOR AND LARGE AREA TELESCOPE OBSERVATIONS OF LVT151012 AND GW151226
SEARCHING THE GAMMA-RAY SKY FOR COUNTERPARTS TO GRAVITATIONAL WAVE SOURCES: FERMI GAMMA-RAY BURST MONITOR AND LARGE AREA TELESCOPE OBSERVATIONS OF LVT151012 AND GW151226 Open
We present the Fermi Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT) observations of the LIGO binary black hole merger event GW151226 and candidate LVT151012. At the time of the LIGO triggers on LVT151012 and GW151226, GBM was…
View article: Constraints on the bulk Lorentz factor of gamma-ray burst jets from<i>Fermi</i>/LAT upper limits
Constraints on the bulk Lorentz factor of gamma-ray burst jets from<i>Fermi</i>/LAT upper limits Open
It is largely recognized that gamma-ray burst (GRB) jets involve ultrarelativistic motion. However, the value of the Lorentz factor Γ0 is still not clear and only lower limits are known for most bursts. We suggest here a new method to obta…
View article: FERMI LARGE AREA TELESCOPE DETECTION OF EXTENDED GAMMA-RAY EMISSION FROM THE RADIO GALAXY FORNAX A
FERMI LARGE AREA TELESCOPE DETECTION OF EXTENDED GAMMA-RAY EMISSION FROM THE RADIO GALAXY FORNAX A Open
We report the Fermi Large Area Telescope detection of extended γ -ray emission from the lobes of the radio galaxy Fornax A using 6.1 years of Pass 8 data. After Centaurus A, this is now the second example of an extended γ -ray source attri…
View article: MINUTE-TIMESCALE >100 MeV γ-RAY VARIABILITY DURING THE GIANT OUTBURST OF QUASAR 3C 279 OBSERVED BY FERMI-LAT IN 2015 JUNE
MINUTE-TIMESCALE >100 MeV γ-RAY VARIABILITY DURING THE GIANT OUTBURST OF QUASAR 3C 279 OBSERVED BY FERMI-LAT IN 2015 JUNE Open
On 2015 June 16, Fermi -LAT observed a giant outburst from the flat spectrum radio quasar 3C 279 with a peak >100 MeV flux of ∼3.6 × 10 −5 photons cm −2 s −1 , averaged over orbital period intervals. It is historically the highest γ -ray f…
View article: A significant hardening and rising shape detected in the MeV/GeV νFᵥ spectrum from the recently discovered very-high-energy blazar S4 0954+65 during the bright optical flare in 2015 February
A significant hardening and rising shape detected in the MeV/GeV νFᵥ spectrum from the recently discovered very-high-energy blazar S4 0954+65 during the bright optical flare in 2015 February Open
We report on Fermi Large Area Telescope (LAT) and multi-wavelength results on the recently discovered very-high-energy (VHE, E > 100 GeV) blazar S4 0954+65 (z = 0.368) during an exceptionally bright optical flare in 2015 February. During t…
View article: FERMI-LAT OBSERVATIONS OF THE LIGO EVENT GW150914
FERMI-LAT OBSERVATIONS OF THE LIGO EVENT GW150914 Open
The Fermi Large Area Telescope (LAT) has an instantaneous field of view (FoV) covering of the sky and it completes a survey of the entire sky in high-energy gamma-rays every 3 hr. It enables searches for transient phenomena over time…
View article: FERMI LAT STACKING ANALYSIS OF SWIFT LOCALIZED GRBs
FERMI LAT STACKING ANALYSIS OF SWIFT LOCALIZED GRBs Open
We perform a comprehensive stacking analysis of data collected by the Fermi Large Area Telescope (LAT) of γ -ray bursts (GRBs) localized by the Swift spacecraft, which were not detected by the LAT but which fell within the instrument’s fie…
View article: THE FIRST FERMI LAT SUPERNOVA REMNANT CATALOG
THE FIRST FERMI LAT SUPERNOVA REMNANT CATALOG Open
To uniformly determine the properties of supernova remnants (SNRs) at high energies, we have developed the first systematic survey at energies from 1 to 100 GeV using data from the Fermi Large Area Telescope (LAT). Based on the spatial ove…
View article: Search for Spectral Irregularities due to Photon–Axionlike-Particle Oscillations with the Fermi Large Area Telescope
Search for Spectral Irregularities due to Photon–Axionlike-Particle Oscillations with the Fermi Large Area Telescope Open
We report on the search for spectral irregularities induced by oscillations between photons and axionlike-particles (ALPs) in the γ-ray spectrum of NGC 1275, the central galaxy of the Perseus cluster. Using 6 years of Fermi Large Area Tele…
View article: Resolving the Extragalactic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>-Ray Background above 50 GeV with the Fermi Large Area Telescope
Resolving the Extragalactic-Ray Background above 50 GeV with the Fermi Large Area Telescope Open
The Fermi Large Area Telescope (LAT) Collaboration has recently released a catalog of 360 sources detected above 50 GeV (2FHL). This catalog was obtained using 80 months of data re-processed with Pass 8, the newest event-level analysis, wh…
View article: Measurement of the high-energy gamma-ray emission from the Moon with the Fermi Large Area Telescope
Measurement of the high-energy gamma-ray emission from the Moon with the Fermi Large Area Telescope Open
We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first seven years of operation, in the energy range from 30 MeV up to a few GeV. We ha…
View article: CONTEMPORANEOUS BROADBAND OBSERVATIONS OF THREE HIGH-REDSHIFT BL LAC OBJECTS
CONTEMPORANEOUS BROADBAND OBSERVATIONS OF THREE HIGH-REDSHIFT BL LAC OBJECTS Open
We have collected broadband spectral energy distributions (SEDs) of three BL Lac objects 3FGL J0022.1−1855 ( z = 0.689), 3FGL J0630.9−2406 ( 1.239), and 3FGL J0811.2−7529 ( z = 0.774), detected by Fermi with relatively flat gigaelectronv…
View article: SEARCH FOR GAMMA-RAY EMISSION FROM THE COMA CLUSTER WITH SIX YEARS OF FERMI-LAT DATA
SEARCH FOR GAMMA-RAY EMISSION FROM THE COMA CLUSTER WITH SIX YEARS OF FERMI-LAT DATA Open
We present results from γ -ray observations of the Coma cluster incorporating six years of Fermi -LAT data and the newly released “Pass 8” event-level analysis. Our analysis of the region reveals low-significance residual structures within…
View article: Deep Morphological and Spectral Study of the SNR RCW 86 with Fermi-LAT
Deep Morphological and Spectral Study of the SNR RCW 86 with Fermi-LAT Open
RCW 86 is a young supernova remnant (SNR) showing a shell-type structure at several wavelengths and is thought to be an efficient cosmic-ray (CR) accelerator. Earlier Fermi Large Area Telescope results reported the detection of γ-ray emiss…
View article: FERMI-LAT OBSERVATIONS OF HIGH-ENERGY γ-RAY EMISSION TOWARD THE GALACTIC CENTER
FERMI-LAT OBSERVATIONS OF HIGH-ENERGY γ-RAY EMISSION TOWARD THE GALACTIC CENTER Open
The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission toward the Galactic center (GC) in high-energy γ -rays. This paper describes the analysis of data taken during the first 62 months of the miss…
View article: 2FHL: THE SECOND CATALOG OF HARD FERMI-LAT SOURCES
2FHL: THE SECOND CATALOG OF HARD FERMI-LAT SOURCES Open
We present a catalog of sources detected above 50 GeV by the Fermi -Large Area Telescope (LAT) in 80 months of data. The newly delivered Pass 8 event-level analysis allows the detection and characterization of sources in the 50 GeV–2 TeV e…