1. Discovery (?) for new population of isolated neutron star “ Transient radio bursts from rotating neutron star ” M.A. McLaughlin et al., Nat. Feb. 16, 2006 “ Discovery of the X-ray counter part to the rotating radio transient J1819-1458 S.P. Reynolds et al., ApJL, vol. 636, L71, 2006

2. Observation Parkes multibeam survey between January and February 2002. Since August 2003, all the sources have been re-observed at least nine times - Between four to 229 bursts were detected from each sources Isolated bursts radio emissions from the eleven sources

3. Very bright radio sources!! 14000-MHz flux densities is range 0.1 to 3.6Jy ex. ~mJy for normal radio pulsar

4. What is the object? The duration of the each burst is between 2-30ms. The average time between the bursts is range between 4m to 3h. Periodicity searches identify as the rotating objects with 0.4 - 7s period ranges T 2-30ms 4m-3h Neutron star?

5. CHANDRA observed X-ray counter part (CXOU J181934.1-145804) from one (J1819-1458) of them kT~0.12keV, R~10km Neutron star!!

6. Pulsar parameters

7. Normal radio pulsar? Only burst like emissions are observed (no regular pulsed radio emission) Peak flux densities are higher than normal radio emission from the pulsar Only giant pulses are observed ?

8. Giant pulse? Too lower magnetic field, 1~10G, at the light cylinder. ex. Crab pulsar ~10 6 G Too wide pulse width, 2~30ms ex. Crab pulsar ~ nano s If emission width is determined by plasma frequency, the emission height is h>Rlc. ex. Crab pulsar ~ 10 R (private communication with Jaroschek)

9. Summary The burst like radio emissions were measured from 11 rotating neutron star. The radio emission mechanism would be different from normal and giant pulsed emissions. These new discovered objects belong to new population of isolated neutron star Rotating RAdio Transients (RRATs)