M87 at metre wavelengths
M87 at metre wavelengths
M87 at metre wavelengths
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<strong>M87</strong> - Core<br />
Spectral index analysis:<br />
• LOFAR-LBA @ 30-77 MHz<br />
• LOFAR HBA @ 115-162 MHz<br />
• VLA @ 327 MHz<br />
• VLA @ 1.4-1.6 MHz<br />
• Effelsberg @ 10.55 GHz<br />
Possible issues:<br />
• Absolute flux scale<br />
• Curv<strong>at</strong>ure domin<strong>at</strong>ed by a single frequency<br />
• Averaging of different parts of the source
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