LOTAAS: The LOFAR Tied-Array All-Sky Survey for Pulsars & Fast Transients


In 2013 we started "LOTAAS", an all-Northern-sky survey for pulsars (and other short-duration astrophysical transients) using the new LOFAR radio telescope.

Through Cartesius' formidable computational capabilities we have already discovered a total of 70 pulsars This makes LOTAAS the most successful pulsar survey ever performed at very low frequency. Special among these 70 are e.g.the nearest pulsar binary system ever discovered, an ultra-fast spinning millisecond pulsar, and the by-far slowest pulsar known, with a period ~24 sec (a shocking scientific surprise!). A simple extrapolation of the current discovery rate suggests that LOTAAS will have found more than 100 pulsars by its completion, making it one of the most successful pulsar surveys ever performed. However, motivated by our discovery rate and the unique systems we are discovering, we want to achieve even more.With this new proposal for time allocation on Cartesius, we will release the v2.0 of our pipeline.

For the next 12 months we request 26 M SBU of computing time to continue this highly successful survey.


Project number


Main applicant

Dr. A.G.J. van Leeuwen

Affiliated with

ASTRON - Netherlands Institute for Radio Astronomy


27/04/2018 to 01/02/2019