Author Topic: Standard-Candle Supernovae are Still Standard, but Why?  (Read 1327 times)

Blackprojects

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Standard-Candle Supernovae are Still Standard, but Why?
« on: March 04, 2014, 03:43:47 am »
3 March 2014 http://www.interactions.org
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Source: Berkeley Lab
Content: Press Release
Date Issued: 3 March 2014
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Standard-Candle Supernovae are Still Standard, but Why?

The Nearby Supernova Factory based at Berkeley Lab shows that Type Ia supernovae have a surprisingly large range of masses




http://www.interactions.org/cms/?pid=1033679

JeanTate

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Re: Standard-Candle Supernovae are Still Standard, but Why?
« Reply #1 on: March 04, 2014, 01:40:34 pm »
Because, from the article itself:

Quote
For a supernova whose light falls off quickly, the progenitor is a lot less massive than the Chandrasekhar mass – yet it's still a normal Type Ia, whose luminosity can be confidently standardized to match other normal Type Ia supernovae.

The same is true for a Type Ia that starts from a "classic" progenitor with Chandrasekhar mass, or even more.