Excitation and abundance study of CO+ in the interstellar medium

Free Access

Table 1:

CO⁺ column densities N derived from observations toward PDRs.
Object	$n({\rm H_2})$	G₀	N	N/ $2\times 10^{21}$
	[cm^-3]	[Habing]	[10¹² cm^-2]	[10^-9]
M17SW	$5\times 10^5$	$5 \times 10^4$	1-1.8	0.5-0.9
Orion Bar	$2.5 \times10^5$	$5 \times 10^4$	1-2.7	0.5-1.35
S140	10⁵	150	0.03	0.015
NGC 7023	10⁴-10⁵	$2 \times 10^3$	0.3	0.15
Mon R2	$1.5\times 10^6$	$4.9 \times 10^5$	0.53	0.27
G29.96-0.02	$7\times 10^5$	$1.5 \times 10^5$	0.47	0.24

^aStoerzer et al. (1995); Latter et al. (1993); ^bSavage & Ziurys (2004); Fuente et al. (2003); Stoerzer et al. (1995); ^cPark & Minh (1995); Savage & Ziurys (2004); Stoerzer et al. (1995); ^dFuente et al. (2003); Fuente & Martin-Pintado (1997); ^eRizzo et al. (2003).

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.