Abstract
Previous mid-infrared, far-infrared, and new submillimeter data relating solely to 52CrH in its X6Σ+ state have been reanalyzed by a least-squares fit using a Hund's case (b) Hamiltonian to determine the best obtainable set of parameters for the molecule. In particular, the fine structure and hyperfine constants have been improved. From these parameters, transition frequencies are determined that are more reliable than those published previously; the latter show systematic errors of up to 15 MHz. Such frequencies will facilitate the identification of CrH in the interstellar medium.
Original language | English (US) |
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Pages (from-to) | 1143-1147 |
Number of pages | 5 |
Journal | Astrophysical Journal |
Volume | 637 |
Issue number | 2 I |
DOIs | |
State | Published - Feb 1 2006 |
Keywords
- Astrochemistry
- ISM: lines and bands
- ISM: molecules
- Line: identification
- Molecular data
- Stars: AGB and post-AGB
- Stars: low-mass, brown dwarfs
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science