<p>Consider the following image (Source: An Introduction to Modern Astrophysics):
<a href="https://i.sstatic.net/9SlYX.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/9SlYX.png" alt="enter image description here"></a></p>

<p>There seems to be a relation between the initial mass/mass at the beginning of the MS and the time spent during different evolutionary phases.</p>

<p>Is the this relation empirical or can it be quantified? </p>

<p>For example, the MS lifetime is proportional to <span class="math-container">$M / L$</span> , I want to know whether a relationship like this exists for other phases.</p>

<p>Edit 1: </p>

<p>See this image for more details, does there exist any quantitative relation from which these values can be obtained?</p>

<p><a href="https://i.sstatic.net/JImsZ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/JImsZ.png" alt="enter image description here"></a></p>

CC BY-SA 4.0
2019-12-10T15:09:24.567Z
Yes, you can even find the relation on wikipedia: https://en.wikipedia.org/wiki/Main_sequence
AtmosphericPrisonEscape
CC BY-SA 4.0
2019-12-10T15:51:21.700Z
@AtmosphericPrisonEscape Yes, I have mentioned that as an example in my question. I was actually wondering whether such relations existed for other evolutionary phases.
Hrsht
CC BY-SA 4.0
2019-12-10T18:39:06.030Z
You should ask that in your question then. As it stands, you're asking about the MS.
AtmosphericPrisonEscape
CC BY-SA 4.0
2019-12-11T06:26:47.717Z
@AtmosphericPrisonEscape I guess there is a misunderstanding. I have clearly written it as an example, I wanted to know whether a relationship like that existed for other phases. Nevertheless, I'll edit the question.
Hrsht
<stellar-evolution><main-sequence><red-giant><initial-mass-function>
Relation between initial mass and evolutionary phases lifetimes
Hrsht
# Relation between initial mass and evolutionary phases lifetimes

(Asked by: username_0 on 2019-12-10)

Consider the following image (Source: An Introduction to Modern Astrophysics):
[![enter image description here](https://i.sstatic.net/9SlYX.png)](https://i.sstatic.net/9SlYX.png)

There seems to be a relation between the initial mass/mass at the beginning of the MS and the time spent during different evolutionary phases.

Is the this relation empirical or can it be quantified?

For example, the MS lifetime is proportional to $M / L$ , I want to know whether a relationship like this exists for other phases.

Edit 1:

See this image for more details, does there exist any quantitative relation from which these values can be obtained?

[![enter image description here](https://i.sstatic.net/JImsZ.png)](https://i.sstatic.net/JImsZ.png)

**Tags:** stellar-evolution, main-sequence, red-giant, initial-mass-function

> **Comments:**
> **username_1**: Yes, you can even find the relation on wikipedia: https://en.wikipedia.org/wiki/Main_sequence  
> **username_0**: @username_1 Yes, I have mentioned that as an example in my question. I was actually wondering whether such relations existed for other evolutionary phases.  
> **username_1**: You should ask that in your question then. As it stands, you're asking about the MS.  
> **username_0**: @username_1 I guess there is a misunderstanding. I have clearly written it as an example, I wanted to know whether a relationship like that existed for other phases. Nevertheless, I'll edit the question.  

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## 0 answers

