Radio Galaxy M 87 as Seen at Very High Energies by H.E.S.S. (IMAGE)
Caption
Fig. 3: The radio galaxy M 87 seen at very high energies by H.E.S.S. (left panel (A), colour scale). The emission seems extended which is, however, explained by the measurement accuracy of the telescopes. A much stronger constraint on the size of the emission region can be derived from the measured variability of the VHE gamma radiation (see text). The black lines reflect the structure of M 87 at radio wave-lengths. Right panel (B): Zoom to dotted square in left panel. The radio galaxy M 87 as seen at radio wave lengths, which corresponds to energies 19 orders of magnitude lower than the VHE gamma radiation. The position of the maximum emission of the VHE gamma radiation is also given (cross).
Credit
Image: H.E.S.S., Radio Data: F.N. Owen et al. (2000)
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