Question regarding supernovae shock breakout

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The discussion centers on the shock breakout of supernovae, specifically which types of stars exhibit the strongest shock breakout and the underlying reasons. Red Super-giants (RSGs) are suggested as candidates due to their significant kinetic energy related to stellar mass and thermal energy linked to temperature and radius. Research indicates that a 25 solar mass RSG can achieve energy levels around 20 x 10^51 erg, with peak temperatures of approximately 5 x 10^5 K and luminosities near 200 x 10^44 erg/s, although these values decline for stars of different masses. The conversation also touches on the influence of mass and metallicity on shock breakout characteristics. Understanding these dynamics is crucial for astrophysical studies of supernovae.
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Hi,

I am currently studying for a masters in Astrophysics and am in my Stellar Atmospheres module.

One of the questions I have been asked is with regards to the shock breakout of supernovae.

Basically, the question is which type of stars show the strongest shock breakout and why?

My thinking on this is that it is Red Super-giants as effectively the kinetic energy is a function of stellar mass the thermal energy is a function of temperature and stellar radius.

I have seen some papers showing energy levels in the range of 20 x 1051 erg, peak temperature around 5 x 105 K and peak luminosity around 200 x 1044 erg/s for a 25MΘ RSG, and these values seem to drop off either side of this mass.

The simple fact though is that I don't full understand why.

Could anyone help shed some light on this?

Thank you!
 
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Physics Dad said:
Basically, the question is which type of stars show the strongest shock breakout and why?
Isn't it a question of mass and metalicity?

https://en.wikipedia.org/wiki/Supernova has a table: Core collapse scenarios by mass and metallicity
 

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