Relationship : Marriage 1974 (Gunthara Falke)
Work : Prize February 2005 (Kings Medal of Merit) chart Placidus Equal_H.
Death:Death, Cause unspecified 29 January 2009 (Age 73) chart Placidus Equal_H.
Norwegian astrophysicist best known for his pioneering work on gravitational lensing, including the Chang-Refsdal lens. He was professor of astrophysics at the University of Hamburg from 1972 to 2001, and professor II at the University of Oslo 1992-2001. He is particularly known for the "Refsdal Method," which describes how one may estimate the expansion rate of the Universe (Hubble constant) using the measured time-delay and lens properties of a gravitationally lensed quasar (QSO). The first detected multiply-lensed supernova was nicknamed "SN Refsdal" in his honor. In February 2005 Refsdal was awarded the Kings Medal of Merit (gold). Refsdal died on 29 January 2009, aged 73. Link to Wikipedia biography Read less