J/MNRAS/470/2539 Radiation fields of the Milky Way (Popescu+, 2017)
A radiation transfer model for the Milky Way.
I. Radiation fields and application to high-energy astrophysics.
Popescu C.C., Yang R., Tuffs R.J., Natale G., Rushton M., Aharonian F.
<Mon. Not. R. Astron. Soc. 470, 2539 (2017)>
=2017MNRAS.470.2539P 2017MNRAS.470.2539P (SIMBAD/NED BibCode)
ADC_Keywords: Models ; Galaxies, photometry
Keywords: radiation mechanisms: non-thermal - radiative transfer - scattering -
cosmic rays - dust, extinction - gamma-rays: ISM
Abstract:
We provide a library for the ultraviolet - submillimetre (submm)
interstellar radiation fields (ISRFs) of the Milky Way (MW), derived
from modelling COBE, IRAS and Planck maps of the all-sky emission in
the near-, mid-, far-infrared and submm. The library was produced
using the axisymmetric radiative transfer model that we have
previously implemented to model the panchromatic spectral energy
distributions (SEDs) of star-forming galaxies in the nearby universe,
but with a new methodology allowing for optimization of the radial and
vertical geometry of stellar emissivity and dust opacity, as deduced
from the highly resolved emission seen from the vantage point of the
Sun.
Description:
Radiative transfer model calculations of energy density of radiation
fields (RFs) in the Milky Way are presented on a cylindrical grid
(r,z) sampled at 23x22 positions. There are 15 files of RFs in direct
stellar light corresponding to 15 wavelengths in the range 0.0912 to 5
micron and one IDL file containing the radiation fields in the dust
emission corresponding to 120 wavelengths in the range 3 to 1000
microns, sampled at the same (r,z) positions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
grid_dust.save 512 955 IDL file containing the radiation fields in
the dust emission
models.dat 44 7590 Models for RFs in direct stellar light
models.tar 797 8820 *Individual files
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Note on models.tar: Individual files for direct stellar light are labelled:
u_<Band>.dat where <Band> is the photometric band.
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Description of file:
Byte-by-byte Description of file: models/*
-----------------------------------------------------------------------------
Bytes Format Units Label Explanations
-----------------------------------------------------------------------------
7- 13 I7 pc r(pc) [0/24000] Galactocentric radial position
20- 26 I7 pc z(pc) [0/10000] Galactocentric vertical position
30- 42 E13.7 uJ/pc3/nm urad Energy density of radiation fields
(erg/pc3/Å)
45- 57 E13.7 uW/pc3/nm Eabs Energy absorbed (erg/s/pc3/Å)
-----------------------------------------------------------------------------
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See also:
J/A+A/527/A109 : Dust and PAH emission SEDs of disk galaxies (Popescu+, 2011)
Byte-by-byte Description of file: models.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Band Band (1)
6- 10 I5 pc r(pc) [0/24000] Galactocentric radial position
12- 16 I5 pc z(pc) [0/10000] Galactocentric vertical position
18- 30 E13.8 uJ/pc3/nm urad Energy density of radiation fields
(erg/pc3/Å)
32- 44 E13.8 uW/pc3/nm Eabs Energy absorbed (erg/s/pc3/Å)
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Note (1): Photometric bands as in Popescu et al. (2011, J/A+A/527/109)
as follows:
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Band lambda
------------------------------
uv09 91.2nm
uv13 135nm
uv15 150nm
uv16 165nm
uv20 200nm
uv22 220nm
uv25 250nm
uv28 280nm
uv36 365nm
b 443nm
v 564nm
i 809nm
j 1259nm
k 2200nm
nir 5000nm
------------------------------
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Acknowledgements:
Cristina Popescu, CPopescu(at(at)uclan.ac.uk
(End) Patricia Vannier [CDS] 22-Jun-2017