Astronomical identification of CN-, the smallest observed molecular anion

Free Access

Table 1:

Observed line parameters of CN^-.
	$\nu_{\rm0}$ ^a	$\nu_{\rm obs}$	$v_{\rm exp}$ ^b	$\int$ $T_{\rm A}^*$ ${\rm d}$ v
Transition	(MHz)	(MHz)	(km s^-1)	(K km s^-1)
J = 1-0	112 264.8	112 264.8^c	14.5^c	$\sim$ 0.07(3)^d
J = 2-1	224 525.1	224 525.4(5)	14.5^c	0.23(7)^e
J = 3-2	336 776.4	336 777.0(12)	15.0(10)	0.13(2)

Notes. Number in parentheses are 1 $\sigma$ uncertainties in units of the last digits. ^(a) Frequencies derived from the rotational constants reported by Amano (2008). ^(b) $v_{\rm exp}$ is the half width at zero level. ^(c) Fixed value. ^(d) Highly uncertain estimate. Line severely blended with a strong C₆H line. ^(e) Line blended with a SiC₂ $\nu _3=2$ line.

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.