synthpop.modules.extinction.surot

Extinction map from Surot et al 2020. This is a 2-d map which may be used as a screen at some distance, or projected into 3-d following the scheme used in Galaxia (see galaxia_3d module / Sharma et al. 2011).

Extinction is provided as total extinction A_Ks at 2.15 microns

Publication DOI: 10.1051/0004-6361/202038346

Data file FTP: https://cdsarc.cds.unistra.fr/ftp/J/A+A/644/A140/ejkmap.dat.gz

Classes

Surot

Extinction map from Surot et al. 2020

Module Contents

class synthpop.modules.extinction.surot.Surot(project_3d=True, dist_2d=8.15, **kwargs)

Bases: synthpop.modules.extinction._extinction.ExtinctionMap

Extinction map from Surot et al. 2020 On first use, the map is downloaded and converted from E(J-Ks) to A_Ks values

Attributes

project_3d=Trueboolean

whether to project the map into 3-d or keep as 2-d

dist_2d=8.15float

for 3-d: distance where the map value is the true extinction value; for 2-d: distance where extinction is applied as a screen

Methods

extinction_in_map(l_deg, b_deg, dist):

equivalent to lallement_ext_func

extinction_map_name = 'Surot'

ref_wavelength = 2.152152

A_or_E_type = 'A_Ks'

project_3d = True

dist_2d = 8.15

extinction_in_map(l_deg, b_deg, dist)

Estimates the extinction for a list of star positions.

Parameters

l_deg: ndarray [degrees]

galactic longitude

b_deg: ndarray [degrees]

galactic latitude

dist: ndarray [kpc]

radial distance from the Sun

Returns

extinction_value: ndarray [mag]

extinction at each star position defined as self.A_or_E_type