galpy.df.diskdf.targetSurfacemassLOS

diskdf.targetSurfacemassLOS(d, l, log=False, deg=True)[source]

NAME:

targetSurfacemassLOS

PURPOSE:

evaluate the target surface mass along the LOS given l and d

INPUT:

d - distance along the line of sight (can be Quantity)

l - Galactic longitude (in deg, unless deg=False; can be Quantity)

deg= if False, l is in radians

log - if True, return the log (default: False)

OUTPUT:

Sigma(d,l) x d

HISTORY:

2011-03-23 - Written - Bovy (NYU)