VERITAS OBSERVATIONS OF THE NOVA IN V407 CYGNI

Journal Article · Fri Jul 20 04:00:00 EDT 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/754/1/77· OSTI ID:22039289

Aliu, E ^[1]; Archambault, S ^[2]; Arlen, T ^[3]; Aune, T; Bouvier, A ^[4]; Beilicke, M; Buckley, J H; Bugaev, V; Dickherber, R ^[5]; Benbow, W ^[6]; Bradbury, S M ^[7]; Byrum, K ^[8]; Cannon, A; Collins-Hughes, E ^[9]; Cesarini, A; Connolly, M P ^[10]; Ciupik, L ^[11]; Cui, W ^[12]; Decerprit, G ^[13]; Duke, C ^[14] ; others, and

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1. Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States)
2. Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada)
3. Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)
4. Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States)
5. Department of Physics, Washington University, St. Louis, MO 63130 (United States)
6. Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States)
7. School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom)
8. Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (United States)
9. School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland)
10. School of Physics, National University of Ireland Galway, University Road, Galway (Ireland)
11. Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States)
12. Department of Physics, Purdue University, West Lafayette, IN 47907 (United States)
13. DESY, Platanenallee 6, 15738 Zeuthen (Germany)
14. Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States)

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 Multiplication-Sign 10{sup -12} erg cm{sup -2} s{sup -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.

• OSTI ID: 22039289
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 754; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ACCELERATION
ASTROPHYSICS
BINARY STARS
GAMMA ASTRONOMY
GAMMA DETECTION
GAMMA RADIATION
GEV RANGE
NOVAE
SYMBIOTIC STARS
TELESCOPES
TEV RANGE
WHITE DWARF STARS