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VERITAS Observations of the Nova in V407 Cygni
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2012 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, \apj, Vol. 754, no 1, 77Article in journal (Refereed) Published
Abstract [en]

We report on very high energy (E > 100 GeV) gamma-ray observations of V407 Cygni, a symbiotic binary that underwent a nova outburst producing 0.1-10 GeV gamma rays during 2010 March 10-26. Observations were made with the Very Energetic Radiation Imaging Telescope Array System during 2010 March 19-26 at relatively large zenith angles due to the position of V407 Cyg. An improved reconstruction technique for large zenith angle observations is presented and used to analyze the data. We do not detect V407 Cygni and place a differential upper limit on the flux at 1.6 TeV of 2.3 × 10–12 erg cm–2 s–1 (at the 95% confidence level). When considered jointly with data from Fermi-LAT, this result places limits on the acceleration of very high energy particles in the nova.

Place, publisher, year, edition, pages
2012. Vol. 754, no 1, 77
Keyword [en]
gamma rays: general, novae, cataclysmic variables, white dwarfs
National Category
Astronomy, Astrophysics and Cosmology
Research subject
Physics, Astroparticle Physics
Identifiers
URN: urn:nbn:se:lnu:diva-42801DOI: 10.1088/0004-637X/754/1/77OAI: oai:DiVA.org:lnu-42801DiVA: diva2:807538
Available from: 2015-04-23 Created: 2015-04-23 Last updated: 2015-05-05Bibliographically approved

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Prokoph, Heike
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