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Observation of VHE Gamma Ray Sources with the MAGIC telescope

Observation of VHE Gamma Ray Sources with the MAGIC telescope

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Contemporaneous radio observations<br />

Albert et al. 2006<br />

• We perform contemporaneous radio observations (Ryle<br />

<strong>telescope</strong> 15GHz) during <strong>the</strong> last observed orbital cycle<br />

• Two maxima are detected: just before periastron and higher at<br />

phase 0.7<br />

• TeV peak observed before <strong>the</strong> radio <br />

•The absence <strong>of</strong> a spectral feature between 10 and 100 keV goes against<br />

an accretion scenario !!!!<br />

P.Majumdar, 24 th August, IIA, India

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