E. D. Bloom
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View article: Incremental Fermi Large Area Telescope Fourth Source Catalog
Incremental Fermi Large Area Telescope Fourth Source Catalog Open
We present an incremental version (4FGL-DR3, for Data Release 3) of the fourth Fermi Large Area Telescope (LAT) catalog of γ -ray sources. Based on the first 12 years of science data in the energy range from 50 MeV to 1 TeV, it contains 66…
View article: THE SEARCH FOR NEW EFFECTS IN E+ E- INTERACTIONS
THE SEARCH FOR NEW EFFECTS IN E+ E- INTERACTIONS Open
of interesting and frequently exciting new physics. This has been particularly true for the energy range of the J/$ and T; however, results from the PEP/PETRA machines have also been valuable, e.g., the measurement of the B lifetime. Much …
View article: Gamma Rays from Fast Black-hole Winds
Gamma Rays from Fast Black-hole Winds Open
Massive black holes at the centers of galaxies can launch powerful wide-angle winds that, if sustained over time, can unbind the gas from the stellar bulges of galaxies. These winds may be responsible for the observed scaling relation betw…
View article: Catalog of Long-term Transient Sources in the First 10 yr of Fermi-LAT Data
Catalog of Long-term Transient Sources in the First 10 yr of Fermi-LAT Data Open
We present the first Fermi Large Area Telescope (LAT) catalog of long-term γ -ray transient sources (1FLT). This comprises sources that were detected on monthly time intervals during the first decade of Fermi-LAT operations. The monthly ti…
View article: The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope Open
The fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains objects located at high Galactic latitudes ( ). It includes 85…
View article: Fermi Large Area Telescope Fourth Source Catalog
Fermi Large Area Telescope Fourth Source Catalog Open
We present the fourth Fermi Large Area Telescope catalog (4FGL) of γ -ray sources. Based on the first eight years of science data from the Fermi Gamma-ray Space Telescope mission in the energy range from 50 MeV to 1 TeV, it is the deepest …
View article: Fermi-LAT Observations of LIGO/Virgo Event GW170817
Fermi-LAT Observations of LIGO/Virgo Event GW170817 Open
We present the Fermi Large Area Telescope (LAT) observations of the binary neutron star merger event GW170817 and the associated short gamma-ray burst (SGRB) GRB 170817A detected by the Fermi Gamma-ray Burst Monitor. The LAT was entering t…
View article: Proceedings of the Workshop on e<sup>+</sup>e<sup>-</sup> Physics at High Luminosities
Proceedings of the Workshop on e<sup>+</sup>e<sup>-</sup> Physics at High Luminosities Open
This report contains an account of the work done in the workshop on e+e- Physics at High Luminosities. The Workshop was sponsored jointly by the SLAC-LBL Users Organization (SLUO) and the Stanford Linear Accelerator Center. Over 150 physic…
View article: Proposal for the Gamma-ray Large Area Space Telescope
Proposal for the Gamma-ray Large Area Space Telescope Open
the location of GLAST in its orbit as well as the LAT's projected field of view on the sky containing known gamma-ray sources. The display also requires a world map showing the locations of GLAST and three Tracking and Data Relay Satellite…
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: Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope
Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope Open
Black holes with masses below approximately 10 15 g are expected to emit gamma-rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telescope (LAT). Although black holes with these masses cannot be form…
View article: Inclusive D*(plus/minus) production in photon-photon collisions
Inclusive D*(plus/minus) production in photon-photon collisions Open
Author(s): Alston-Garnjost, M.; Avery, R.E.; Barker, A.R.; Bauer, D.A.; Bay, A.; Buijs, A.; Belcinski, R.; Bingham, H.H.; Bloom, E.D.; Buchanan, C.D.; Caldwell, D.O.; Chao, H-Y.; Chun, S-B.; Clark, A.R.; Crane, D.A.; Dahl, O.I.; Daoudi, M.…
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: Toward a next-generation high-energy gamma-ray telescope. Proceedings
Toward a next-generation high-energy gamma-ray telescope. Proceedings Open
It has been some time between the time of the first Gamma-ray Large Area Space Telescope (GLAST) workshop, Towards a Next Generation High-Energy Gamma-Ray Telescope, in late August 1994, and the publication of a partial proceedings of that…
View article: Proceedings of the 22nd Texas Symposium On Relativistic Astrophysics At Stanford University
Proceedings of the 22nd Texas Symposium On Relativistic Astrophysics At Stanford University Open
The XXII Texas Symposium on Relativistic Astrophysics, jointly organized by the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), the Stanford Linear Accelerator Center, and the Physics Department of Stanford University, was…
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: 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: 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…