What drives the [CII]/FIR deficit in submillimeter galaxies?
Abstract
Submillimeter galaxies at redshift z⩾1 show a pronounced [CII]/FIR deficit down to sub-kpc scales; however, the physical origin of this deficit remains poorly understood. We use resolved ALMA observations of the [CII], FIR and CO(3-2) emission in two z = 3 SMGs to distinguish between the different proposed scenarios; the thermal saturation of the [CII] emission is the most likely explanation.
- Publication:
-
Uncovering Early Galaxy Evolution in the ALMA and JWST Era
- Pub Date:
- 2020
- DOI:
- 10.1017/S1743921319009104
- Bibcode:
- 2020IAUS..352..293R
- Keywords:
-
- galaxies: high-redshift;
- galaxies: ISM;
- submillimeter