Laboratory experiments and Shock Breakout Probes of the Early Universe

Details Laboratory experiments and Shock Breakout Probes of the Early Universe Laboratory experiments and Shock Breakout Probes of the Early Universe

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21830203f&link_type=abstract

American Astronomical Society, AAS Meeting #218, #302.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Our understanding of the first epoch of star formation has been limited by the lackof quality data of the early universe. The deaths of massive stars (supernovae, gamma-ray bursts, pair instability supernovae) may provide key information into this early stage in the evolution of the universe. In the nearby universe, observations of shock breakout, when observed, have provided vital clues into the engine behind these cosmic explosions. Shock breakout is the astronomy term for the condition where the radiation in the shock becomes optically thin and can escape. Modeling shock breakout requires true radiation-hydrodynamics calculations and tests our algorithms for radiation transport. Because of redshift effects, shock breakout is the only "transient" observed in first-star supernovae. To trust the models of this important early universe probe, we must test our transport algorithms. We are currently using a number of laboratory experiments to test aspects of radiation hydrodynamics. Here I review the basic problem of shock breakout models of supernovae in the early universe, tying these probes to current and future laboratory experiments.

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