Mass-Luminosity Relation for Main Sequence Stars
Luminosity is the total amount of energy emitted by a star, galaxy or other astronomical object per unit time. For stars on the main sequence, luminosity is related to mass.
Luminosity increases with mass of the star to the power 3.5.
Formula
![QuantityVariable["L", "Luminosity"] == Quantity[1, "NominalSolarLuminosity"]*(Quantity[1, "SolarMass"^(-1)]*QuantityVariable["M", "Mass"])^3.5`2.](https://www.wolframcloud.com/objects/resourcesystem/marketplacestorage/resources/1bf/1bf35801-54b5-4e42-991c-0ad4f6cb3c52/Webpage/FormulaImage.png "Copy to Clipboard")
| symbol | description | physical quantity |
|---|---|---|
| L | luminosity | "Luminosity" |
| M | mass | "Mass" |
Forms
Examples
Get the resource:
| In[1]:= | ![ResourceObject["Mass-Luminosity Relation for Main Sequence Stars"]](images/1bf/1bf35801-54b5-4e42-991c-0ad4f6cb3c52-io-1-i.en.gif){kind=small} |
| Out[1]= |  |
Get the formula:
| In[2]:= | ![FormulaData[
ResourceObject["Mass-Luminosity Relation for Main Sequence Stars"]]](images/1bf/1bf35801-54b5-4e42-991c-0ad4f6cb3c52-io-2-i.en.gif){kind=small} |
| Out[2]= |  |
Use some values:
| In[3]:= | ![FormulaData[
ResourceObject[
"Mass-Luminosity Relation for Main Sequence Stars"], \
{QuantityVariable["M","Mass"] -> Quantity[1, "SolarMass"]}]](images/1bf/1bf35801-54b5-4e42-991c-0ad4f6cb3c52-io-3-i.en.gif){kind=small} |
| Out[3]= |  |