F. Dirirsa
YOU?
Author Swipe
View article: Periodic Gamma-Ray Modulation of the Blazar PG 1553+113 Confirmed by Fermi-LAT and Multiwavelength Observations
Periodic Gamma-Ray Modulation of the Blazar PG 1553+113 Confirmed by Fermi-LAT and Multiwavelength Observations Open
A 2.1 yr periodic oscillation of the gamma-ray flux from the blazar PG 1553+113 has previously been tentatively identified in ∼7 yr of data from the Fermi Large Area Telescope. After 15 yr of Fermi sky-survey observations, doubling the tot…
View article: Search for New Cosmic-Ray Acceleration Sites within the 4FGL Catalog Galactic Plane Sources
Search for New Cosmic-Ray Acceleration Sites within the 4FGL Catalog Galactic Plane Sources Open
Cosmic rays are mostly composed of protons accelerated to relativistic speeds. When those protons encounter interstellar material, they produce neutral pions, which in turn decay into gamma-rays. This offers a compelling way to identify th…
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: 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: Fermi Large Area Telescope Performance after 10 Years of Operation
Fermi Large Area Telescope Performance after 10 Years of Operation Open
The Large Area Telescope (LAT), the primary instrument for the Fermi Gamma-ray Space Telescope (Fermi) mission, is an imaging, wide field-of-view, high-energy gamma-ray telescope, covering the energy range from 30 MeV to more than 300 GeV.…
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 First Fermi-LAT Solar Flare Catalog Appendix
The First Fermi-LAT Solar Flare Catalog Appendix Open
We present the appendix of the First Fermi-Large Area Telescope (LAT) Solar flare catalog covering the 24thSolar cycle. The catalog (published in ApJS) contains 45 Fermi-LAT Solar flares (FLSFs) with emission in theγ-ray energy band (30 Me…
View article: The First Fermi-LAT Solar Flare Catalog Appendix
The First Fermi-LAT Solar Flare Catalog Appendix Open
We present the appendix of the First Fermi-Large Area Telescope (LAT) Solar flare catalog covering the 24thSolar cycle. The catalog (published in ApJS) contains 45 Fermi-LAT Solar flares (FLSFs) with emission in theγ-ray energy band (30 Me…
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: Bright Gamma-Ray Flares Observed in GRB 131108A
Bright Gamma-Ray Flares Observed in GRB 131108A Open
GRB 131108A is a bright long gamma-ray burst (GRB) detected by the Large Area Telescope and the Gamma-ray Burst Monitor on board the Fermi Gamma-ray Space Telescope . Dedicated temporal and spectral analyses reveal three γ -ray flares domi…
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: Unresolved Gamma-Ray Sky through its Angular Power Spectrum
Unresolved Gamma-Ray Sky through its Angular Power Spectrum Open
The gamma-ray sky has been observed with unprecedented accuracy in the last decade by the Fermi -large area telescope (LAT), allowing us to resolve and understand the high-energy Universe. The nature of the remaining unresolved emission [u…