Radio Detection of PSR J1813-1749 in HESS J1813-178: The Most Scattered Pulsar Known

Understand

The 44.7 ms X-ray pulsar in the supernova remnant G12.82-0.02/HESS J1813-178 has the second highest spin-down luminosity of known pulsars in the Galaxy, with E-dot=5.6e37 erg/s.

• Using the Green Bank Telescope, we have detected radio pulsations from PSR J1813-1749 at 4.4-10.2 GHz.
• The pulse is highly scattered, with an exponential decay timescale \tau longer than that of any other pulsar at these frequencies.
• A point source detected at this position by Dzib et al.