Primordial lithium abundance from interstellar lithium lines towards SN 1987A
Abstract
The primoridal lithium abundance is known to be one of the best probes to test the standard as well as the non-standard Big Bang nucleosynthesis theories, and to measure the nucleon abundance in the early universe in the standard Big Bang (SSB) model. We have obtained high-resolution ((λ)/(δλ)\bartil 100,000), high signal-to-noise (S/N>~1,500) spectra of SN 1987A around the Li:I λ6708 A˚ region, using the ESO 1.4m CAT and the Coudé Echelle Spectrograph. The non-detection of any lithium feature in our sepctra places an upper limit on the lithium abundance. (AIP)
- Publication:
-
Cosmic Abundances of Matter
- Pub Date:
- 1989
- DOI:
- 10.1063/1.37984
- Bibcode:
- 1989AIPC..183..420S
- Keywords:
-
- Abundance;
- Big Bang Cosmology;
- Interstellar Matter;
- Lithium;
- Supernova 1987a;
- Astronomical Spectroscopy;
- Cosmic Rays;
- Nuclear Fusion;
- Star Formation Rate;
- Stellar Activity;
- Universe;
- Astrophysics;
- 98.40.Fx;
- 98.50.Mi;
- 98.80.Ft;
- 95.85.Kr;
- Origin formation and abundances of the elements;
- Visible