Wednesday, April 10, 2013

1304.2427 (A. B. Hill et al.)

The discovery of gamma-ray emission from Nova Sco 2012: An analysis using reprocessed Pass7 data    [PDF]

A. B. Hill, on behalf of the Fermi-LAT collaboration
In March 2010 the Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope discovered for the first time >100 MeV gamma-ray emission from a nova within our galaxy, V407 Cyg. The high-energy spectrum and light curve was explained as a consequence of shock acceleration in the nova shell as it interacts with the local ambient medium. It was suspected that the necessary conditions for high-energy emission from novae would be rare. In June 2012 the LAT detected a new flaring source, Fermi J1750-3243, that is spatially coincident and contemporaneous with a new nova, Nova Sco 2012. We report on the exciting discovery of this new 'gamma-ray' nova and present a detailed analysis of its high-energy properties.
View original: http://arxiv.org/abs/1304.2427

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