13 papers
Gamma-Ray Periodicity in Jetted AGN: Revisiting Periodicity Candidates with >17 years of Fermi-LAT Data
P. Peñil, A. Rico, A. DomÃnguez +3
We reanalyze previously reported gamma-ray periodicity candidates in jetted active galactic nuclei using more than 17 years of Fermi-LAT observations. The updated data provide a ro…
Fermi-LAT Gamma-ray Emission Discovered from the Composite Supernova Remnant B0453-685 in the Large Magellanic Cloud
Jordan Eagle
A second extragalactic pulsar wind nebula (PWN) is discovered in the MeV-GeV band using the Fermi-LAT. Faint, point-like gamma-ray emission is detected at the location of the compo…
The gamma-ray emission from Radio Galaxies and their contribution to the Isotropic Gamma-Ray Background
A. Circiello, A. McDaniel, M. Di Mauro +6
We evaluate the contribution to the Isotropic Gamma-Ray Background (IGRB) coming from Radio Galaxies (RGs), the subclass of radio-loud Active Galactic Nuclei (AGN) with the highest…
The Gamma-ray Luminosity Function of Flat-Spectrum Radio Quasars
Garima Rajguru, Lea Marcotulli, Marco Ajello +2
We have utilized the largest sample of -ray selected Fermi flat-spectrum radio quasars (FSRQs) ever used (519 sources) to construct the luminosity function and its evolution th…
A multi-wavelength view of the multi-messenger sources NGC 1068 and PKS 1502+1061
Abhishek Desai, Stefano Marchesi, Justin Vandenbroucke +8
Multi-messenger astronomy offers a powerful approach to studying high-energy radiative processes in astrophysical sources. A notable example was seen in 2017, when the IceCube Neut…
Search for Periodic Variability in -ray Blazars Using \textit{Fermi}-LAT
P. Peñil, M. Ajello, S. Buson +5
Blazars are known to exhibit variability across a broad range of timescales. This behavior can include periodicity in their -ray emission, whose clear detection remains an ongo…