Well known as the Crab Pulsar being at the center of the Crab nebula.
It is a very fast rotating star with a diameter of about 20Km with 30 revolution per second
(33Hz frequency).
It is a very young pulsar (only 963 years) and is a supernova
remnant,SN1054, which was visible
for many days in 1054.
The incident was well documented at that
time by astronomers.
Several attempts to detect the PSR B0531+21 via the standard folding capabilities of the Presto suite failed,
The reason is ,possibly, the difficulty to detect at my
observation frequency (and with my observatory) a very fast but weak pulse only a few tenth of
millisecond long
Fortunately the Crab pulsar is also known for generating from time
to time giant pulses with an amplitude much greater than average.
Thanks to a different Presto facility (and to Andrea IW5BHY who
did the analysis)
I could collect the evidence of a few giant pulses
compatible with the dispersion characteristic of crab star.
|
Date of Observation |
Friday, July 21, 2017 |
|
Length of Observation |
3 Hours |
|
Center Frequency |
1288 MHz |
|
Bandwidth |
10 MHz |
|
Pulsar Flux at 1400MHz |
14 mJy |
|
Distance |
7131 light years |
|
Pulsar Period |
529 msec |
|
Age |
963 Years |
