VizieR Online Data Catalog: K-H2 line shapes for cool brown dwarfs spectra (Allard+,
Abstract
The relationship between the computed cross section and the normalized absorption coefficient is: I(Δω)=σ(Δω)/π*r0f where r0 is the classical radius of the electron, and f is the oscillator strength of the transition.
The far red wing is linearly dependent on H2 density for lower density than 1021cm-3 and can be obtained from the following tables for T=600, 820, 1000, 1500, 2000 and 3000K where n(H2)=1021cm-3. For a more complete profile including the blue wing, opacity tables are available on request from nicole.allard@obspm.fr (2 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- April 2016
- DOI:
- 10.26093/cds/vizier.35890021
- Bibcode:
- 2016yCat..35890021A
- Keywords:
-
- Atomic physics;
- Spectroscopy