Hunting for Strongly Lensed Type Ia Supernovae (IMAGE)

DOE/Lawrence Berkeley National Laboratory

Hunting for Strongly Lensed Type Ia Supernovae

Caption

This composite of two astrophysics simulations shows a Type Ia supernova (purple disc) expanding over different microlensing magnification patterns (colored fields). Because individual stars in the lensing galaxy can significantly change the brightness of a lensed event regions of the supernova can experience varying amounts of brightening and dimming, which scientists believed would be a problem for cosmologists measuring time delays. Using detailed computer simulations at NERSC, astrophysicists showed that this would have a small effect on time-delay cosmology.

Credit

Danny Goldstein, UC Berkeley

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