Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).

View the beta site
NIST logo

Publication Citation: Light a Single Candle: Studying Supernovae

NIST Authors in Bold

Author(s): Dianne M. O'Leary; Bert W. Rust;
Title: Light a Single Candle: Studying Supernovae
Published: March 01, 2012
Abstract: At peak luminosity, Type Ia supernovae can be even brighter than their parent galaxies, and their light curves display a very uniform and regular behavior. This makes them excellent candidates for a role as standard candles in measuring the distances to their galaxies. This tutorial paper shows the student how to develop a mathematical model for the light curve and to fit that model to actual observed light curves in order to estimate the parameters that will be used to calibrate the standard candle.
Citation: Computing in Science & Engineering
Volume: 14
Pages: pp. 90 - 96
Keywords: type Ia supervovae, light curve modelling, radioactive decay chains, nonlinear least squares, variable projection algorithm
Research Areas: Math, Modeling
DOI: http://dx.doi.org/10.1109/MCSE.2012.28  (Note: May link to a non-U.S. Government webpage)