Title
Search for gamma-ray counterparts of newly discovered radio astrophysical sources
Date Issued
01 January 2019
Access level
metadata only access
Resource Type
conference paper
Publisher(s)
Sissa Medialab Srl
Abstract
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.
Volume
358
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Scopus EID
2-s2.0-85086266556
Conference
Proceedings of Science - 36th International Cosmic Ray Conference, ICRC 2019
Source funding
Sponsor(s)
S.B. acknowledges support from CONCYTEC-FONDECyT scholarship under grant 233-2015-2. J.B. acknowledges funding by the DGI at PUCP under grant 2017-3-0019.
Sources of information: Directorio de Producción Científica Scopus