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Multiwavelength Obs...
Multiwavelength Observations of the TeV Binary LS I +61° 303 with VERITAS, Fermi-LAT, and Swift/XRT during a TeV Outburst
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Aliu, E. (author)
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Archambault, S. (author)
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Behera, B. (author)
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show more...
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Berger, K. (author)
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Beilicke, M. (author)
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Benbow, W. (author)
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Bird, R. (author)
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Bouvier, A. (author)
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Bugaev, V. (author)
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Cerruti, M. (author)
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Chen, X. (author)
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Ciupik, L. (author)
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Connolly, M. P. (author)
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Cui, W. (author)
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Dumm, J. (author)
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Falcone, A. (author)
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Federici, S. (author)
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Feng, Q. (author)
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Finley, J. P. (author)
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Fortin, P. (author)
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Fortson, L. (author)
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Furniss, A. (author)
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Galante, N. (author)
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Gillanders, G. H. (author)
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Griffin, S. (author)
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Griffiths, S. T. (author)
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Grube, J. (author)
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Gyuk, G. (author)
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Hanna, D. (author)
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Holder, J. (author)
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Hughes, G. (author)
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Humensky, T. B. (author)
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Kaaret, P. (author)
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Kertzman, M. (author)
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Khassen, Y. (author)
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Kieda, D. (author)
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Krennrich, F. (author)
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Lang, M. J. (author)
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Maier, G. (author)
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Majumdar, P. (author)
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McArthur, S. (author)
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McCann, A. (author)
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Moriarty, P. (author)
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Mukherjee, R. (author)
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O’Faoláin de Bhróithe, A. (author)
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Ong, R. A. (author)
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Otte, A. N. (author)
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Park, N. (author)
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Perkins, J. S. (author)
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Pohl, M. (author)
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Popkow, A. (author)
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- Prokoph, Heike (author)
- DESY, Germany
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Quinn, J. (author)
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Ragan, K. (author)
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Rajotte, J. (author)
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Ratliff, G. (author)
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Reynolds, P. T. (author)
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Richards, G. T. (author)
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Roache, E. (author)
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Sembroski, G. H. (author)
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Sheidaei, F. (author)
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Skole, C. (author)
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Smith, A. W. (author)
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Staszak, D. (author)
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Telezhinsky, I. (author)
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Tyler, J. (author)
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Varlotta, A. (author)
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Vincent, S. (author)
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Wakely, S. P. (author)
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Weekes, T. C. (author)
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Weinstein, A. (author)
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Welsing, R. (author)
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Zajczyk, A. (author)
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Zitzer, B. (author)
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 779:1
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We present the results of a multiwavelength observational campaign on the TeV binary system LS I +61° 303 with the VERITAS telescope array (>200 GeV), Fermi-LAT (0.3-300 GeV), and Swift/XRT (2-10 keV). The data were taken from 2011 December through 2012 January and show a strong detection in all three wavebands. During this period VERITAS obtained 24.9 hr of quality selected livetime data in which LS I +61° 303 was detected at a statistical significance of 11.9σ. These TeV observations show evidence for nightly variability in the TeV regime at a post-trial significance of 3.6σ. The combination of the simultaneously obtained TeV and X-ray fluxes do not demonstrate any evidence for a correlation between emission in the two bands. For the first time since the launch of the Fermi satellite in 2008, this TeV detection allows the construction of a detailed MeV-TeV spectral energy distribution from LS I +61° 303. This spectrum shows a distinct cutoff in emission near 4 GeV, with emission seen by the VERITAS observations following a simple power-law above 200 GeV. This feature in the spectrum of LS I +61° 303, obtained from overlapping observations with Fermi-LAT and VERITAS, may indicate that there are two distinct populations of accelerated particles producing the GeV and TeV emission.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- acceleration of particles
- binaries: general
- gamma rays: stars
- relativistic processes
- X-rays: binaries
- Astropartikelfysik
- Astroparticle Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Aliu, E.
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Archambault, S.
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Behera, B.
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Berger, K.
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Beilicke, M.
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Benbow, W.
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show more...
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Bird, R.
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Bouvier, A.
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Bugaev, V.
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Cerruti, M.
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Chen, X.
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Ciupik, L.
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Connolly, M. P.
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Cui, W.
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Dumm, J.
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Falcone, A.
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Federici, S.
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Feng, Q.
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Finley, J. P.
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Fortin, P.
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Fortson, L.
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Furniss, A.
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Galante, N.
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Gillanders, G. H ...
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Griffin, S.
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Griffiths, S. T.
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Grube, J.
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Gyuk, G.
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Hanna, D.
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Holder, J.
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Hughes, G.
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Humensky, T. B.
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Kaaret, P.
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Kertzman, M.
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Khassen, Y.
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Kieda, D.
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Krennrich, F.
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Lang, M. J.
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Maier, G.
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Majumdar, P.
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McArthur, S.
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McCann, A.
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Moriarty, P.
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Mukherjee, R.
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O’Faoláin de Bhr ...
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Ong, R. A.
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Otte, A. N.
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Park, N.
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Perkins, J. S.
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Pohl, M.
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Popkow, A.
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Prokoph, Heike
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Quinn, J.
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Ragan, K.
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Rajotte, J.
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Ratliff, G.
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Reynolds, P. T.
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Richards, G. T.
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Roache, E.
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Sembroski, G. H.
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Sheidaei, F.
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Skole, C.
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Smith, A. W.
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Staszak, D.
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Telezhinsky, I.
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Tyler, J.
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Varlotta, A.
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Vincent, S.
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Wakely, S. P.
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Weekes, T. C.
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Weinstein, A.
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Welsing, R.
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Zajczyk, A.
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Zitzer, B.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astrophysical Jo ...
- By the university
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Linnaeus University