We report the detection of a new γ-ray source in the Fermi-LAT sky using a source detection tool based on the minimal spanning tree algorithm. The source, not reported in previous LAT catalogues but very recently observed in the X-rays and optical bands, is characterized by an increasing γ-ray activity in 2012 June-September that reached a weekly peak flux of (3.3 ± 0.6) × 10-7 photons cm-2 s-1. A search for a possible counterpart provides indication that it can be associated with the radio source NVSS J141828+354250, whose optical SDSS colours are typical of a blazar.

A new flaring high-energy gamma-ray source

Paggi, A.;
2013-01-01

Abstract

We report the detection of a new γ-ray source in the Fermi-LAT sky using a source detection tool based on the minimal spanning tree algorithm. The source, not reported in previous LAT catalogues but very recently observed in the X-rays and optical bands, is characterized by an increasing γ-ray activity in 2012 June-September that reached a weekly peak flux of (3.3 ± 0.6) × 10-7 photons cm-2 s-1. A search for a possible counterpart provides indication that it can be associated with the radio source NVSS J141828+354250, whose optical SDSS colours are typical of a blazar.
2013
Inglese
Esperti anonimi
551
1
4
4
https://arxiv.org/pdf/1212.6868.pdf
Galaxies: active; Gamma rays: galaxies; Gamma rays: general; Methods: data analysis; Astronomy and Astrophysics; Space and Planetary Science
SVIZZERA
4 – prodotto già presente in altro archivio Open Access (arXiv, REPEC…)
262
5
Bernieri, E.; Campana, R.; Massaro, E.; Paggi, A.; Tramacere, A.
info:eu-repo/semantics/article
reserved
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1658689
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