By Dr. Richard Russel, DSES Science Lead
The pulsar, B1133+16, was observed on the 60 ft dish antenna by Rich Russel and Ray Uberecken after 4 hours of tracking and collecting data on the pulsar.
This pulsar is the weakest object observed by DSES at 0.257 Janskys!
The pulsar is noted for having a “conal double” peak in its profile. Our observation picks this out very well.
The PRESTO analysis program results are shown below.
![](http://dses.science/wp-content/uploads/2020/07/psr-202007111907_1187.95ms_Cand.pfd_pulsar_3-1024x791.png)
The conal double plot is produced from the raw data and plotted in excel.
![](http://dses.science/wp-content/uploads/2020/07/download_swap_pulsar3-1024x283.png)
PSR B1133+16 is located at RA 11h 33m 27s Declination +16.07°, in the northeast part of the constellation Leo. It was observed with a pulse period of 1.187 seconds. Our center frequency was 417 MHz, and we used a 10 MHz bandwidth.
(The name B1133+16 conveys the celestial sky coordinates, referenced to a standard year epoch. In this case the B indicates the position is from the year 1950, the “Besselian” year, named after the German astronomer Friedrich Bessel.)
Congratulations to the entire membership for turning the DSES dish into a world class scientific instrument!
Thanks!
Dr. Richard Russel
DSES Science Lead