Discovery of a compact gas-rich damped Lyman-α galaxy at z = 2.2: evidence of a starburst-driven outflow

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Volume 540 (April 2012)

A&A, 540 (2012) A63

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Table 4

Model input parameters.

Parameter	Value

Box size	10 kpc
Galaxy radius	3 kpc
Number of clouds	4000
Cloud radii	150 pc
Cloud temperature	10⁴ K
Cloud density^a	5 cm^-3
Cloud/ICM metallicity	0.08 Z_⊙
Cloud velocity dispersion	60 km s^-1
Overall infall velocity	60 km s^-1
Central ICM density^a	10^-2 cm^-3
ICM density^a scale length	2 kpc
ICM temperature	5 × 10⁴ K
Jet inner radius^c	0.5 kpc
Jet outer radius^c	5 kpc
Jet terminal^c velocity	400 km s^-1
Total jet column density^a	5 × 10¹⁹ cm^-2
Jet temperature	5 × 10⁵ K
Jet opening angle	50°
Jet direction^d	(0.25, −0.25,1)
Ly α emission scale length	1.5 kpc

Notes.

^(a)

All densities refer to neutral hydrogen only.

^(c)

The gas accelerates from 0 km s^-1 to the terminal velocity going from the inner to the outer radius of the jet.

^(d)

Jet direction is in the coordinate system where the observer is located at z = ∞ (or actually z = d_L).

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