alpha_SF2Temp: Dale alpha_SF to Temperature Conversion Table and Functions

In asgr/ProSpect: Professional Spectral Analysis Package

Dale alpha_SF to Temperature Conversion Table and Functions

Description

This is a by eye Dale alpha_SF to temperature (K) conversion table (alpha_SF2Temp) and associated functions ((alpha_SF2Temp_func / Temp2alpha_SF_func)) that let you convert in both directions. Here we fit to the Dale templates with no AGN contribution, and use a grey body for the fit.

Usage

data("alpha_SF2Temp")
data("alpha_SF2Temp_func")
data("Temp2alpha_SF_func")

Format

A data frame with 7 observations on the following 3 variables.

alpha_SF

A numeric vector; alpha slope of the radiation field in a Dale dust template.

Temp

A numeric vector; approximate grey body temperature of the Dale dust template.

Beta

A numeric vector; approximate grey body beta of the Dale dust template.

Details

Useful for a rough temperature (easier to think of the dust in these terms. In detail this will not be correct, since the dust is heated by a continuum, and there is no single appropriate temperature to state. However, adjusting also the grey body beta gives us a good rough fit that is indicative at least.

References

Dale et al, 2014, ApJ, 784, 11

Examples

data(alpha_SF2Temp)
data(alpha_SF2Temp_func)
plot(alpha_SF2Temp[,'alpha_SF'], alpha_SF2Temp[,'Temp'], xlab='alpha_SF', ylab='Temp/K')
curve(alpha_SF2Temp_func, 0, 4, add=TRUE)

asgr/ProSpect documentation built on Feb. 21, 2025, 1:43 a.m.