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07-21-2019, 07:18 PM | #1 |
Join Date: Jul 2019
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[ SPACE 4e ] Minimum Luminosity
I have not turned up entries concerning this.
Concerns the minimum luminosity table ( correction the L-Min on the Stellar Evolution Table ). Does anyone know the possible formula for behind those L-Min numbers? Probably not the actual scientific formula unless you think that was the one used. I tried some variations, going with the assumption that it is calculated based on stellar mass ( in Sols ), but with no luck. I am inquiring partly of out curiosity and the other part is using a formula ( in a project I am toying with ) would be more efficient than doing a bunch of IF statements ( what I'm using is not Excel so I do not have the benefit of using VLOOkUP ). Last edited by manhamster; 07-22-2019 at 09:07 AM. |
07-21-2019, 08:34 PM | #2 |
Join Date: Nov 2006
Location: Heartland, U.S.A.
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Re: [ SPACE 4e ] Minimum Luminosity
Could you clarify a bit? You’re asking for a “formula” for luminosity as a function of mass for low-mass stars?
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07-21-2019, 08:50 PM | #3 | |
Join Date: May 2005
Location: Oz
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Re: [ SPACE 4e ] Minimum Luminosity
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In real astrophysics that is called the "zero-age main sequence luminosity". There's a fitted analytical function on the second page of Tout, C. A., Pols, O. R., Eggleton, P. P., & Han, Z. "Zero-age main-seqence radii and luminosities as analytic functions of mass and metallicity" Monthly Notices of the Royal Astronomical Society, Volume 281, Issue 1, pp. 257-262, but I don't think you're going to like it.
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Decay is inherent in all composite things. Nod head. Get treat. Last edited by Agemegos; 07-21-2019 at 09:18 PM. |
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07-21-2019, 08:49 PM | #5 | |
Join Date: Mar 2010
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Re: [ SPACE 4e ] Minimum Luminosity
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Absent clarification, more information can be found here. |
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