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On the nature of the TeV emission from the supernova remnant SN 1006
被引:16
|作者:
Araya, Miguel
[1
]
Frutos, Francisco
[1
]
机构:
[1] Univ Costa Rica, Space Res Ctr CINESPA, San Jose 2060, Costa Rica
关键词:
acceleration of particles;
radiation mechanisms: non-thermal;
ISM: individual objects: SN 1006;
ISM: supernova remnants;
LARGE-AREA TELESCOPE;
COSMIC-RAY ACCELERATION;
MAGNETIC-FIELD AMPLIFICATION;
FERMI-LAT DISCOVERY;
PARTICLE-ACCELERATION;
RX J1713.7-3946;
CASSIOPEIA-A;
SN-1006;
GAMMA;
SHOCK;
D O I:
10.1111/j.1365-2966.2012.21580.x
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We present a model for the non-thermal emission from the historical supernova remnant SN 1006. We constrain the synchrotron parameters of the model with archival radio and hard X-ray data. Our stationary emission model includes two populations of electrons, which is justified by multifrequency images of the object. From the set of parameters that predict the correct synchrotron flux we select those which are able to account, either partly or entirely, for the gamma-ray emission of the source as seen by HESS. We use the results from this model as well as the latest constraints imposed by the Fermi observatory and conclude that the TeV emission cannot be accounted for by pi(0) decay from high-energy ions with a single power-law distribution, of the form dN(proton)/dE(p) proportional to E-p(-s), and s greater than or similar to 2.
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页码:2810 / 2816
页数:7
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