Table 1: Glossary of used symbols and units.
sym. unit description

$\rho$ $\mbox{g}~\mbox{cm}^{-3}$ gas density

$\ensuremath{\rho_{{\rm d}}}$ $\mbox{g}~\mbox{cm}^{-3}$ dust density

$n_{{\rm g}}$ $\mbox{cm}^{-3}$ gas number density

$n_{{\rm d}}$ $\mbox{cm}^{-3}$ dust number density

u $\mbox{cm}~\mbox{s}^{-1}$ gas velocity

v $\mbox{cm}~\mbox{s}^{-1}$ dust velocity

J $\mbox{erg}~\mbox{cm}^{-2}~\mbox{s}^{-1}$ zeroth moment of the

radiation field

K_j cm^-3 moments of the grain size

distribution; $0\le j\le3$

$\ensuremath {v_{{\rm D}}}$ $\mbox{cm}~\mbox{s}^{-1}$ drift velocity

$S\ensuremath{_{{\rm D}}}$ speed ratio

$C\ensuremath{_{{\rm D}}}$ drag coefficient

$\varepsilon$ fraction of specular collisions

$\sigma$ cm² gas-dust geom. cross section

$\ensuremath{f_{{\rm drag}}}$ $\mbox{g}~\mbox{cm}^{-2}\mbox{s}^{-2}$ drag force

$\ensuremath {q_{{\rm drift}}}$ $\mbox{erg}~\mbox{cm}^{-3}\mbox{s}^{-1}$ heating by drift

$\ensuremath{\langle r_{\rm d}\rangle}$ cm mean grain radius

P $\mbox{dyn}~\mbox{cm}^{-2}$ gas pressure

$T_{{\rm g}}$ K gas temperature

$T_{{\rm d}}$ K dust temperature

$S_{{\rm g}}$ $\mbox{erg}~\mbox{cm}^{-2}~\mbox{s}^{-1}~\mbox{ster}^{-1}$ source function of the gas

$\kappa_{{\rm g}}$ $\mbox{g}^{-1}~\mbox{cm}^{2}$ (gray) gas opacity

$\kappa_{{\rm d}}$ $\mbox{g}^{-1}~\mbox{cm}^{2}$ (gray) dust opacity

c $\mbox{cm}~\mbox{s}^{-1}$ speed of light

$k_{{\rm B}}$ $\mbox{erg}~\mbox{K}^{-1}$ Boltzmann constant

G $\mbox{dyn}~\mbox{g}^{-2}~\mbox{cm}^{2}$ gravitational constant

$\sigma_{{\rm B}}$ $\mbox{erg}~\mbox{cm}^{-2}~\mbox{s}^{-1}\mbox{K}^{-4}$ Stefan-Boltzmann constant

Quantities specified at the outer boundary

$\dot{M}$ $\ensuremath{{M}_{\odot}\,\mbox{yr}^{-1}}$ mass loss rate

$\ensuremath{u_{\infty}}$ $\mbox{cm}~\mbox{s}^{-1}$ terminal velocity

$\ensuremath {f_{{\rm cond}}}$ degree of condensation

$\ensuremath{\tau_{{\rm d}}}$ dust optical depth

$\ensuremath{\sigma_{{\rm s}}}$ standard deviation

Grain properties

$K_0=n_{\rm d}$

$K_1/K_0=\ensuremath{\langle r_{\rm d}\rangle} /r_0$ ; $r_0~[\mbox{cm}]$ - monomer radius

$K_2/K_0=\langle A\rangle/4\pi r_0^2$ ; $\langle A\rangle~[\mbox{cm}^2]$ - mean grain surface area

$K_3/K_0=\langle N\rangle$ ; $\langle N\rangle$ - mean grain size

**Table 1:** Glossary of used symbols and units.
sym.	unit	description
$\rho$	$\mbox{g}~\mbox{cm}^{-3}$	gas density
$\ensuremath{\rho_{{\rm d}}}$	$\mbox{g}~\mbox{cm}^{-3}$	dust density
$n_{{\rm g}}$	$\mbox{cm}^{-3}$	gas number density
$n_{{\rm d}}$	$\mbox{cm}^{-3}$	dust number density
u	$\mbox{cm}~\mbox{s}^{-1}$	gas velocity
v	$\mbox{cm}~\mbox{s}^{-1}$	dust velocity
J	$\mbox{erg}~\mbox{cm}^{-2}~\mbox{s}^{-1}$	zeroth moment of the
		radiation field
K_j	cm^-3	moments of the grain size
		distribution; $0\le j\le3$
$\ensuremath {v_{{\rm D}}}$	$\mbox{cm}~\mbox{s}^{-1}$	drift velocity
$S\ensuremath{_{{\rm D}}}$		speed ratio
$C\ensuremath{_{{\rm D}}}$		drag coefficient
$\varepsilon$		fraction of specular collisions
$\sigma$	cm²	gas-dust geom. cross section
$\ensuremath{f_{{\rm drag}}}$	$\mbox{g}~\mbox{cm}^{-2}\mbox{s}^{-2}$	drag force
$\ensuremath {q_{{\rm drift}}}$	$\mbox{erg}~\mbox{cm}^{-3}\mbox{s}^{-1}$	heating by drift
$\ensuremath{\langle r_{\rm d}\rangle}$	cm	mean grain radius
P	$\mbox{dyn}~\mbox{cm}^{-2}$	gas pressure
$T_{{\rm g}}$	K	gas temperature
$T_{{\rm d}}$	K	dust temperature
$S_{{\rm g}}$	$\mbox{erg}~\mbox{cm}^{-2}~\mbox{s}^{-1}~\mbox{ster}^{-1}$	source function of the gas
$\kappa_{{\rm g}}$	$\mbox{g}^{-1}~\mbox{cm}^{2}$	(gray) gas opacity
$\kappa_{{\rm d}}$	$\mbox{g}^{-1}~\mbox{cm}^{2}$	(gray) dust opacity
c	$\mbox{cm}~\mbox{s}^{-1}$	speed of light
$k_{{\rm B}}$	$\mbox{erg}~\mbox{K}^{-1}$	Boltzmann constant
G	$\mbox{dyn}~\mbox{g}^{-2}~\mbox{cm}^{2}$	gravitational constant
$\sigma_{{\rm B}}$	$\mbox{erg}~\mbox{cm}^{-2}~\mbox{s}^{-1}\mbox{K}^{-4}$	Stefan-Boltzmann constant

Quantities specified at the outer boundary

$\dot{M}$	$\ensuremath{{M}_{\odot}\,\mbox{yr}^{-1}}$	mass loss rate
$\ensuremath{u_{\infty}}$	$\mbox{cm}~\mbox{s}^{-1}$	terminal velocity
$\ensuremath {f_{{\rm cond}}}$		degree of condensation
$\ensuremath{\tau_{{\rm d}}}$		dust optical depth
$\ensuremath{\sigma_{{\rm s}}}$		standard deviation

Grain properties
$K_0=n_{\rm d}$
$K_1/K_0=\ensuremath{\langle r_{\rm d}\rangle} /r_0$ ; $r_0~[\mbox{cm}]$ - monomer radius
$K_2/K_0=\langle A\rangle/4\pi r_0^2$ ; $\langle A\rangle~[\mbox{cm}^2]$ - mean grain surface area
$K_3/K_0=\langle N\rangle$ ; $\langle N\rangle$ - mean grain size

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