P_hydro¶
- edge_pydb.conversion.P_hydro(sigmol, sigstar, c_gas=11, sigHI=7, R_half=None)[source]¶
Calculate the hydrostatic (dynamical equilibrium) pressure from Sigma_mol and Sigma_*, following Sun+20 (2020ApJ…892..148S)
- Parameters:
- sigmolastropy.table.Column
molecular gas mass surface density (deprojected)
- sigstarastropy.table.Column
stellar mass surface density (deprojected)
- c_gasfloat
Assumed gas velocity dispersion in km/s. Default is 11 (OML10).
- sigHIfloat
Assumed HI mass surface density in solMass/pc2
- R_halfastropy.Quantity
input half-light radius for the galaxy (distance units)
- Returns:
- P_DE: astropy.table.Column
estimate of the dynamical equilibrium pressure
- t_ver: astropy.table.Column
estimate of the vertical dynamical timescale
- c_star: astropy.table.Column
estimate of stellar velocity dispersion