The Existence of He^{3} in 3 Centauri
Citations Over TimeTop 11% of 1961 papers
Abstract
The positions of 10 He I lines have been measured on 5 high-dispersion plates of 3 Centauri A (B4p). Some of the lines are displaced longward of their normal wavelengths by up to 0.39 A. There is a good correlation between the observed shifts and the isotope shifts for He3. On comparing the displacements in 3 Centauri with those measured in other B stars, we conclude that the Stark effect cannot produce shifts of the magnitude observed in 3 Centauri. Using the simple approximation that the observed displacements are proportional to the ratio He3/(He3 + He4), we find that this ratio in 3 Centaun is 0 84 + 0 10. From a study of the profile of H measured on 3 plates, we find that the ratio : hydrogen is less than about 0.01. We consider some possible ways in which He3 could be produced ili large quantities in the atmosphere of 3 Centauri.
Related Papers
- Susquehanna Chorale Spring Concert "Roots and Wings"(2017)
- IDENTIFIKASI MODE RUSAK JAMAK (MULTI-FAULTS) BANTALAN MENGGUNAKAN ANALISIS ENVELOPE PADA TURBIN ANGIN Horizontal Axis(2018)
- EVALUASI PERLAKUAN AKUNTANSI HARGA POKOK PRODUK RUSAK PADA PT. MULIAPRIMA REPLICATAMA SEMARANG(2000)
- ANALISIS PERLAKUAN AKUNTANSI PRODUK RUSAK PADA PT. AJINOMOTO INDONESIA MOJOKERTO FACTORY(2017)
- Perbedaan Kinerja Karyawan Sebelum dan Sesudah Penerapan Uraian Pekerjaan(2001)