NUMERICALLY EFFICIENT EXPRESSIONS FOR NEBULAR LINE COOLING

Authors
BALICK B MELLEMA G FRANK A
Citation
B. Balick et al., NUMERICALLY EFFICIENT EXPRESSIONS FOR NEBULAR LINE COOLING, Astronomy and astrophysics, 275(2), 1993, pp. 588-596
Citations number
5
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
275
Issue
2
Year of publication
1993
Pages
588 - 596
Database
ISI
SICI code
0004-6361(1993)275:2<588:NEEFNL>2.0.ZU;2-G
Abstract
Optical and UV forbidden lines are some of the dominant radiative ener gy loss mechanisms in nebular astrophysics. Direct numerical calculati ons of their cooling rates are generally very time consuming. Computat ionally efficient polynomial approximations of important volume emissi vities for various ions of C, N, O, Ne, and S are fitted and presented in the domain 1 less-than-or-equal-to log10(n(e)/cm-3) less-than-or-e qual-to 7 and 3.5 less-than-or-equal-to log10(T(e)/K) less-than-or-equ al-to 5.