A high-Resolution Catalog of Cometary Emission Lines
Abstract
Using high-resolution spectra obtained with the Hamilton echelle spectrograph at Lick Observatory, we have constructed a catalog of emission lines observed in comets Swift-Tuttle and Brorsen-Metcalf. The spectra cover the range between 3800 Å and 9900 Å with a spectral resolution of λ/Δλ∼42000. In the spectra, we catalog 2997 emission lines of which we identify 2438. We find cometary lines due to H, O, C2, CN, NH2, C3, H2O+, CH, and CH+. We list 559 unidentified lines compiled from the two spectra and comment on possibilities for their origins.
- Publication:
-
The Astronomical Journal
- Pub Date:
- September 1996
- DOI:
- 10.1086/118090
- Bibcode:
- 1996AJ....112.1197B
- Keywords:
-
- COMETS: GENERAL;
- CATALOGS