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Related Experiment Video

Updated: Jul 4, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

Published on: July 2, 2012

Supernova shock breakout from a red supergiant.

Kevin Schawinski¹, Stephen Justham, Christian Wolf

¹Department of Physics, University of Oxford, Oxford OX1 3RH, UK. kevins@astro.ox.ac.uk

Science (New York, N.Y.)

|June 17, 2008

Summary

This summary is machine-generated.

Massive stars exploding as supernovae were observed before their shock reached the surface. This early detection of core-collapse supernovae provides insights into stellar interiors and explosion physics.

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Evaluating Primary Blast Effects In Vitro

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Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

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Published on: July 2, 2012

Evaluating Primary Blast Effects In Vitro

Evaluating Primary Blast Effects In Vitro

Published on: September 18, 2017

Area of Science:

Astronomy and Astrophysics
Stellar Evolution
Supernova Physics

Background:

Massive stars end their lives in core-collapse supernovae.
These cosmic explosions are typically detected days after the event.
Understanding supernova progenitors is crucial for astrophysics.

Purpose of the Study:

To observe and analyze the early stages of a core-collapse supernova.
To investigate the radiative precursor emission before the shock breaks out.
To confirm the progenitor type of the observed supernova.

Main Methods:

Utilizing the Galaxy Evolution Explorer (GALEX) space telescope for observations.
Analyzing the ultraviolet light curve of the supernova SNLS-04D2dc.
Employing theoretical models to interpret observational data.

Main Results:

Detected a radiative precursor from the supernova shock before surface breakout.
Observed the initial expansion of the progenitor star during the explosion.
Confirmed the progenitor star was a red supergiant through theoretical modeling.

Conclusions:

Early detection of supernovae is possible by observing radiative precursors.
This method allows probing the physics of core-collapse supernovae.
Provides insights into the internal structure of red supergiant progenitors.