A Search for Candidate TeV Emitters in the High-latitude Fermi Unassociated Source

TL;DR

This paper analyzes high-latitude unassociated Fermi sources to identify promising candidates for very high energy gamma-ray emission, aiming to optimize joint observation strategies with VHE instruments.

Contribution

It introduces a method to select the most promising unassociated Fermi sources for VHE observations, enhancing the efficiency of multi-wavelength gamma-ray studies.

Findings

Identified candidate sources with potential VHE emission.

Provided a prioritized list for follow-up observations.

Demonstrated the scientific value of combined Fermi and VHE data.

Abstract

We report the results of an analysis to identify candidates for very high energy (VHE; E > 100 GeV) emission from high-latitude (|b|>10) unassociated sources in the year-1 catalog under development by the Fermi large area telescope (LAT) team. These are sources with no known counterparts at other wavelengths. Since VHE instruments are pointed instruments with small fields of view and low duty cycles, their observing programs need to be planned carefully to identify the most promising targets for observation. The scientific potential of combined Fermi and VHE observations has already been demonstrated with a number of joint VHE-Fermi papers. The goal of this work is to select the most promising unassociated Fermi sources for joint observations with Fermi and the VHE instruments.