Search for gamma-ray counterparts of newly discovered radio astrophysical sources

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Resumen

We study two newly discovered classes of radio sources: the highly energetic, short-lived events, known as Fast Radio Bursts (FRBs), and a new category of compact radio galaxies known as Fanaroff-Riley type 0 (FR0s). Due to the unknown nature of FRBs and a previous correlation found with an FR0 in γ-rays, it is possible that these sources could also emit high energy photons in the Fermi-LAT energy range. Here we present an exhaustive time-dependent and spatial search of all up-to-date observed FRBs and FR0s, respectively. We perform a likelihood analysis of the radio sources by modeling the excess flux of gamma rays with a power law using data from Fermi-LAT and the 4FGL catalog. Sources with a pre-trial significance greater than 4s were further analyzed including 2 FRBs and 7 FR0s. No correlations with more than 5s were found after taking into account nearby sources and trial corrections. Therefore, upper limits for all sources were calculated.

Idioma originalInglés
PublicaciónProceedings of Science
Volumen358
EstadoPublicada - 2019
Evento36th International Cosmic Ray Conference, ICRC 2019 - Madison, Estados Unidos
Duración: 24 jul. 20191 ago. 2019

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