Manisha Pranati Caleb is an Indian and Australian astrophysicist whose research has used interferometry to detect fast radio bursts,[1] studied the local context of fast radio bursts, used their signals as probes into the distribution of matter in the universe,[2] and discovered repeating signals from what may be very slowly-rotating neutron stars.
She went to University College London in England for a master's degree involving spacecraft and satellite communications.
Next, she became a doctoral student at the Australian National University, where she began her work on fast radio bursts.
[1][5] Her 2017 doctoral dissertation, A pursuit of fast radio transients with the UTMOST and Parkes radio telescopes, was jointly supervised by Frank Briggs, Brian Schmidt, Matthew Bailes, and Chris Flynn.
[2] Some of Caleb's major results include the first use of interferometry to detect fast radio bursts, in 2017,[1][B] confirmation of the extra-galactic origin of these bursts,[7][A] and the discoveries of ultra-long-period pulsars PSR J0901–4046 in 2020, the former slowest known pulsar at roughly 76 seconds per pulse,[3][C] and ASKAP J1935+2148 in 2024, with roughly 54 minutes per pulse.