Lyα generation in intermediate velocity shock waves
Abstract
We update the Paris-Durham shock model, a state-of-the-art magnetohydrodynamic (MHD) shock code developed with a focus on molecular chemistry, in order to account for the self-generated UV field produced in shocks at velocities in the range 25-50 km/s. In these shocks there is significant excitation of atomic Hydrogen, with a large flux of Lyα photons escaping ahead of the shock to heat, ionize and drive molecular chemistry in a large slab of preshock gas.
- Publication:
-
Uncovering Early Galaxy Evolution in the ALMA and JWST Era
- Pub Date:
- 2020
- DOI:
- 10.1017/S1743921320000654
- Bibcode:
- 2020IAUS..352...73L
- Keywords:
-
- Lyα;
- shock waves;
- UV