runShinySED: Runs Shiny SED App

In asgr/ProSpect: Professional Spectral Analysis Package

Runs Shiny SED App

Description

Simple wrapper function to run the Shiny SED and Filters App. The SED app shows model flux and luminosity. In the former case it is possible to overlay user data using the flux arguement. In the latter case you can see the individual components that add together to make the final SED. Note flux is per unit Hz (as standard for e.g. Jansky etc) and luminosity is per unit Angstrom (as standard for spectral libraries). The Filters app lets you convert between photometric filters using filterTranMags.

Usage

runShinySED(flux = NULL, burstmass = 1e+08, youngmass = 1e+09, midmass = 1e+10,
oldmass = 1e+10, ancientmass = 1e+10, z = 0.1, tau_birth = 1, tau_screen = 0.3,
tau_AGN = 1, alpha_SF_birth = 1, alpha_SF_screen = 3, alpha_SF_AGN = 0, AGNlum = 1e+42,
Z = 5)
runShinyFilters()

Arguments

flux	Data.frame(4 columns, filter name, central wave (Ang), flux (Jy), fluxerr (Jy)). If provided this data will be overlaid in the "Flux" tab to compare against the current model. See ProSpectSEDlike.
burstmass	Numeric scalar; the total stellar mass formed in a recent burst in units Msol. See SFHfunc.
youngmass	Numeric scalar; the total stellar mass formed in young stars in units Msol. See SFHfunc.
midmass	Numeric scalar; the total stellar mass formed in mid stars in units Msol. See SFHfunc.
oldmass	Numeric scalar; the total stellar mass formed in old stars in units Msol. See SFHfunc.
ancientmass	Numeric scalar; the total stellar mass formed in ancient stars in units Msol. See SFHfunc.
z	Numeric scalar; cosmological redshift of the source. See SFHfunc.
tau_birth	Numeric scalar; dust tau of birth clouds. Associated with sub 10 Myr star formation. See CF_birth.
tau_screen	Numeric scalar; dust tau of the dust screen. See CF_screen.
tau_AGN	Numeric scalar; dust tau of the dust screen. See CF.
alpha_SF_birth	Numeric scalar; alpha slope of the birth cloud dust. Lower values mean hotter dust. See Dale.
alpha_SF_screen	Numeric scalar; alpha slope of the screen dust. Lower values mean hotter dust. See Dale.
alpha_SF_AGN	Numeric scalar; alpha slope of the AGN taurus dust. Lower values mean hotter dust. See Dale.
AGNlum	Numeric scalar; AGN bolometric luminosity in erg.
Z	Integer vector; length 5. Specifies the metallicity to use for each phase (default is 5, so solar metallicity for all phases, which is fairly appropriate at low z. See SFHfunc.

Details

Mostly used to run the app, but it can also return the current parameters to help with finding starting parameters for fitting.

Value

runShinySED runs a Shiny app run, which in turn creates an interactive SED plot. The first tab shows the output in flux space for the full SED (all components combined) and the second tab shows the output in luminosity space (split by component also). The luminosity plane also shows the effective star formation history. The redded out region shows the ignored region that is older than the age of the Universe (13.8 Gyrs).

If the user hits Stop! in the app, then the current parameters are returned out in a list. This is useful for interactively finding good starting arguments for fitting purposes. The logged parameters in the Shiny app (masses and AGN luminosity) are returned in linear units since this means they can be directly used in ProSpectSED.

runShinyFilters lets you interactively convert between target and reference filters.

Author(s)

Aaron Robotham

See Also

ProSpectSED, filterTranMags

Examples

## Not run: 
runShinySED()

## End(Not run)

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