Contingut
Imatges
Carregar la teva Imatge
DSS Images Other Images
Articles Relacionats
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.
|
Enviar un nou article
Enllaços Relacionats
- - No s'ha trobat enllaços -
Enviar un nou enllaç
Membre dels grups següents:
|
Dades d'Observació i Astrometria
| Constel·lació: | Orion |
| Ascensió Recta: | 05h48m38.35s |
| Declinació: | +02°50'45.3" |
| Magnitud Aparent: | 9.236 |
| Moviment propi RA: | 21.1 |
| Moviment propi Dec: | -1.7 |
| B-T magnitude: | 9.941 |
| V-T magnitude: | 9.295 |
Catàlegs i designacions:
|
