Function Repository Resource:

ParameterizedStarData

Source Notebook

Compute the typical properties of a star of known type given another property value

Contributed by: Jeff Bryant

ResourceFunction["ParameterizedStarData"][quant, stype]

gives typical properties for a star of type stype constrained by the parameterizing quantity quant.

ResourceFunction["ParameterizedStarData"][quant, stype, prop]

gives typical property prop for a star of type stype constrained by the parameterizing quantity quant.

Details

Results are computed by interpolating results from a stellar model that has been adjusted to include more precise results from well-known stars.

The argument quant must have units compatible with any of the following: "EffectiveTemperature", "Luminosity", "MainSequenceLifetime", "Mass" or "Radius".

The argument prop can be any of the following: "AbsoluteBolometricMagnitude", "BVColorIndex", "EffectiveTemperature", "EndState", "Luminosity", "MainSequenceLifetime", "Mass" or "Radius".

The argument stype can be any of the following: "BrightGiant", "BrownDwarf", "MainSequence", "NormalGiant", "Subdwarf", "Subgiant", "SupergiantIa", "SupergiantIab" or "SupergiantIb".

Examples

Basic Examples (4)

Compute the luminosity of a 50 solar mass Ia supergiant star:

In[1]:=

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Compute the absolute bolometric magnitude of a 5 solar mass main sequence star:

In[2]:=

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Compute the end state of a 2 solar mass main sequence star:

In[3]:=

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Compute the typical properties of a 1 solar radius star:

In[4]:=

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Properties and Relations (2)

The "Star" entity type can provide curated properties for known stars:

In[5]:=

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Results from ParameterizedStarData correspond to typical values of such properties, but may not exactly match the values for a specific star of the same type:

In[6]:=

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Extreme stars such as supergiants can also be queried from the "Star" entity type:

In[7]:=

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The typical values for such stars have more spread in their possible values so the results from ParameterizedStarData may deviate more significantly compared to a less extreme star, but should still be of the same order of magnitude:

In[8]:=