2011/12/22 by V. Sguera, Sguera, V., A. Bazzano +5
Engineering · Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Particle Accelerators and Free-Electron Lasers #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1112.5279
Contributed talk at the INTEGRAL conference "The Extreme and Variable High Energy Sky", September 19-23, 2011, Chia Laguna, Sardegna (Italy). Accepted for publication on PoS (PoS(Extremesky 2011)011). 6 pages, 1 figure
arxiv created 2011/12/22 · openalex publication_date 2011/12/22 · arxiv updated 2011/12/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In the last few years Fermi and AGILE observations have indicated the existence of a possible population of transient MeV-GeV sources located on the Galactic plane and characterized by fast flares lasting only a very few days. Notably, no blazar-like counterparts are known within their error boxes so they could represent a completely new class of Galactic transient high energy emitters. The task of identifying their counterparts at lower energies remains very challenging. Despite this difficulty, INTEGRAL observations have provided intriguing hints that reliable candidate counterparts for these unidentified MeV-GeV transients could be found among the members of the recently discovered class of Supergiant Fast X-ray Transients (SFXTs). In this context, to date the best test case is represented by the association between the two sources IGR J17354-3255 and AGL J1734-3310. We will discuss their possible physical link and implications stemming from this association.