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Related Experiment Video

Updated: May 26, 2026

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Published on: May 26, 2014

Supernova SN 2011fe from an exploding carbon-oxygen white dwarf star.

Peter E Nugent¹, Mark Sullivan, S Bradley Cenko

¹Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. penugent@lbl.gov

|December 16, 2011

Summary

This summary is machine-generated.

Astronomers observed supernova SN 2011fe, likely a white dwarf star exploding. Early observations suggest its companion was a main-sequence star, clarifying supernova progenitor mysteries.

Related Experiment Videos

Last Updated: May 26, 2026

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Published on: May 26, 2014

Area of Science:

Astronomy and Astrophysics
Cosmology

Background:

Type Ia supernovae are crucial 'standard candles' for measuring cosmic expansion.
The exact nature of Type Ia supernova progenitor systems remains largely unknown.
Previous observations lacked proximity to identify progenitor stars before explosion.

Purpose of the Study:

To investigate the progenitor system of supernova SN 2011fe.
To gain insights into the explosion mechanism of Type Ia supernovae.

Main Methods:

Early observations of supernova SN 2011fe in the M101 galaxy (6.4 Mpc).
Spectroscopic analysis of early supernova emissions.
Utilizing pre-explosion images (in a companion paper).

Main Results:

The exploding star was identified as a carbon-oxygen white dwarf.
Lack of an early shock suggests a main-sequence star companion.
Spectroscopy revealed high-velocity oxygen and extensive mixing of elements.

Conclusions:

SN 2011fe provides crucial observational data on Type Ia supernova progenitors.
The findings support the white dwarf-main sequence star binary model for Type Ia supernovae.
This study advances our understanding of stellar explosions and cosmic acceleration.