FE II-LINE EMISSION FROM BE STARS

Authors
TARAFDAR SP APPARAO KMV
Citation
Sp. Tarafdar et Kmv. Apparao, FE II-LINE EMISSION FROM BE STARS, Astronomy and astrophysics, 290(1), 1994, pp. 159-166
Citations number
15
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
290
Issue
1
Year of publication
1994
Pages
159 - 166
Database
ISI
SICI code
0004-6361(1994)290:1<159:FIEFBS>2.0.ZU;2-E
Abstract
We have investigated the origin of the Fe II emission fines in Be star s using a four level Fe+ model. We have computed the equivalent widths W-eq of emission due to (I) Fe++ recombination in the H II region sur rounding the Be star, and (2) photoexcitation and decay of Fe+ in the C II region, which is outside the H II region. We find that the observ ed Fe II line emission should arise from the C II region while recombi nation in the H II region is negligible