First results from PuMa: The Dutch Pulsar machine

Details First results from PuMa: The Dutch Pulsar machine First results from PuMa: The Dutch Pulsar machine

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.259s&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

A new pulsar machine, called PuMa, has been developed in the Netherlands and has recently been installed at the Westerbork Synthesis Radio Telescope. PuMa takes advantage of high speed DSPs to carry out FFTs of the incoming data rather than the traditional filter approach to sampling the bandpass. This enables the formation of very fine frequency channels thus greatly improving the ability to correct for dispersion across the bandpass. The system is also very versatile allowing the approriate number channels to be chosen for a particular experiment. As the data are sampled at 20 MHz very high time resolution can also be acheived. It is also possible to record 10 MHz of raw bandwidth which can be coherently dedispersed off-line. I will present the initial results from a number of projects which we are undertaking, including a globular cluster survey, high resolution pulse studies and polarimetry.

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