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Issue A&A
Volume 443, Number 3, December I 2005
Page(s) 973 - 980
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361:20053056



A&A 443, 973-980 (2005)
DOI: 10.1051/0004-6361:20053056

Dependence of the gamma-ray emission from SN 1006 on the astronomical parameters

L. T. Ksenofontov1, E. G. Berezhko1 and H. J. Völk2

1  Yu.G.Shafer Institute of Cosmophysical Research and Aeronomy, 31 Lenin Av., 677980 Yakutsk, Russia
    e-mail: [berezhko;ksenofon]@ikfia.ysn.ru
2  Max-Planck-Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany
    e-mail: Heinrich.Voelk@mpi-hd.mpg.de

(Received 14 March 2005 / Accepted 21 July 2005)

Abstract
We use nonlinear kinetic theory to study the remnant dynamics and the particle acceleration as well as the properties of the nonthermal emission from the supernova remnant SN 1006. The known range of astronomical parameters is examined to determine whether it encompasses the existing synchrotron emission data. Given the present-day spatial extent and expansion rate of the object, it is shown that the hadronic gamma-ray flux is very sensitive to the ambient gas density N H and that the existing HESS upper limit requires N H < 0.1 cm-3. The strength of the amplified magnetic field downstream of the shock is about 150 $\mu$G.


Key words: cosmic rays -- ISM: supernova remnants

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© ESO 2005


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