Ýçindekiler
Görüntüler
Resim Yükleyin
DSS Images Other Images
Ýlgili Makaleler
The nitrogen abundance in the atmospheres of single and binary stars The nitrogen abundances for 47 single, 11 visual double, and 41 closebinary stars are obtained from high-dispersion Wlambdadeterminations of nitrogen lines using atmospheric models andtheoretical calculations of N II lines, taking LTE errors into account.The mean value of lg N(N) is found to be 8.05 for single stars, 8.50 forclose binaries, and 8.15 for visual double stars. A correlation is foundbetween the nitrogen abundance and the helium and carbon abundances. Itis suggested that considerable mixing between the central part of starsand the atmosphere occurs in binary stars.
|
Yeni bir Makale Öner
Ýlgili Baðlantýlar
Yeni Bir Baðlantý Öner
sonraki gruplarýn üyesi:
|
Gözlemler ve gökölçümü verileri
Takýmyýldýz: | Boga |
Sað Açýklýk: | 03h56m37.44s |
Yükselim: | +23°35'44.0" |
Görünürdeki Parlaklýk: | 8.372 |
özdevim Sað Açýklýk: | -2.2 |
özdevim Yükselim: | -6.3 |
B-T magnitude: | 10.169 |
V-T magnitude: | 8.521 |
Kataloglar ve belirtme:
|