Kaspi was born in Austin, Texas, but her family moved to Canada when she was seven years old.[1] She completed her undergraduate studies at McGill in 1989, and went to Princeton University for her graduate studies, completing her PhD in 1993 supervised by Nobel Prize-winning astrophysicist Joseph Taylor.[1][2]
Kaspi's observations of the pulsar associated with supernova remnant G11.2–0.3 in the constellation Sagittarius, using the Chandra X-ray Observatory, showed that the pulsar was at the precise center of the supernova, which had been observed in 386 CE by the Chinese. This pulsar was only the second known pulsar to be associated with a supernova remnant, the first being the one in the Crab Nebula, and her studies greatly strengthened the conjectured relationship between pulsars and supernovae. Additionally, this observation cast into doubt previous methods of dating pulsars by their spin rate; these methods gave the pulsar an age that was 12 times too high to match the supernova.[6]
She also helped discover the pulsar with the fastest known rotation rate, PSR J1748-2446ad,[2] star clusters with a high concentration of pulsars,[2] and (using the Green Bank Telescope) the "cosmic recycling" of a slow-spinning pulsar into a much faster millisecond pulsar.[8][9]
Awards and honours
1989: Anne Molson Gold Medal in Mathematics and Natural Philosophy, McGill University
^Government of Canada, Natural Sciences and Engineering Research Council of Canada (2016-06-28). "NSERC – John C. Polanyi Award – Past Winners". Natural Sciences and Engineering Research Council of Canada (NSERC). Retrieved 2019-12-17.