The Cygnus Allscale Survey of Chemistry and Dynamical Environments: CASCADE - IV. Unveiling the hidden structures in DR18

Open Access

Table 4

Input parameters of the Paris-Durham low-velocity shock models.

Fixed parameters

Magnetic parameter (b)	1
Cosmic ray ionization rate ζ (s⁻¹)	1 × 10⁻¹⁷
PAHs abundance	1 × 10⁻⁸
Initial extinction	0.1

Free parameters

Shock velocity (v_s in km s⁻¹)	5, 10, 20
Radiation field (G0 in Mathis unit)	0.1, 10, 10², 10³
Pre-shock proton density (n_H in cm⁻³)	10², 10³, 10⁴, 10⁵

Notes. The UV interstellar radiation field is in Mathis units; 1 Mathis unit corresponds to a flux of 1.92 × 10⁻³ ergs cm⁻² s⁻¹ integrated between 912 and 2400 Å, and the ratio relative to 1 Habing is 1.02.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.