Evidence for Twice-ionized Praseodymium and Neodymium in the Upper Atmosphere of HD 99803 A
Abstract
Evidence is presented in this Note for the presence of twice ionized praseodymium and neodymium in the upper atmosphere of HD 99803 A, which turns out to be a newly discovered cool HgMn star in a binary system.
- Publication:
-
Research Notes of the American Astronomical Society
- Pub Date:
- December 2020
- DOI:
- Bibcode:
- 2020RNAAS...4..234M
- Keywords:
-
- Chemical abundances;
- Chemically peculiar stars;
- 224;
- 226
