Blind search in EGRET data The bright pulsars Vele and Gminga can be found using a time difference window of only 3 hours. No scan in the frequency derivative.

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Presentation transcript:

Blind search in EGRET data The bright pulsars Vele and Gminga can be found using a time difference window of only 3 hours. No scan in the frequency derivative is needet. The time to calculate the FFT is only about 1s. Pulsars with a large spin down like the Crab pulsar require a scan in the frequency derivative. Faint pulsars like PSR require a longer time differencing window.

Below are the light curves of four EGRET pulsars found in the scan. The scan was performed of the possition given in the 3EG catalog Several pulsar canditates with good significance were found. The evaluation of those pulsars is still in progress. We probably need to wait for GLAST to determine if those pulsars are real or not

Search through simmulated GLAST data Pulsar with lowest flux: Off plane (b=11.9): PSR_J1852m2610 flux 3x10 -7 Ph/cm 2 s In plane (b= -0.9): PSR_J1856p0113 flux 7x10 -7 Ph/cm 2 s 16 radio loud and 3 radio quiet pulsars were found.