2-6 December 2019
Centro Cultural, Universidad del Atlántico
America/Bogota timezone

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

Not scheduled
Teatrino 1 (Centro Cultural, Universidad del Atlántico)

Teatrino 1

Centro Cultural, Universidad del Atlántico

Universidad del Atlántico Carrera 30 No. 8-49 Puerto Colombia, Atlántico


Sergio Andre Best Reyes (Pontificia Universidad Catolica del Peru (PE))


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 sources known as Fanaroff-Riley type 0 radio galaxies (FR0s). Due to a possible catastrophic event origin for the FRBs and a previous correlation found with an FR0 in the gamma ray spectrum, it is possible that these radio sources could also emit high energy photons in the Fermi-LAT satellite energy range (20 MeV - 300GeV). 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 varying index power law function using data from Fermi-LAT and the 4FGL catalog. Sources with test statistic greater than 16 (corresponding to about 4 sigma) were further analyzed including 2 FRBs and 7 FR0s. No correlations with more than 5 sigma were found after taking into account nearby sources. Therefore, upper limits for all sources were calculated.

Primary author

Sergio Andre Best Reyes (Pontificia Universidad Catolica del Peru (PE))


Jose Luis Bazo Alba (Pontificia Universidad Catolica del Peru (PE))

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