Composition of inner-source heavy pickup ions at 1 AU: SOHO/CELIAS/CTOF observations - Implications for the production mechanisms

Open Access

Table 2

Results from the derivation of the inner-source PUI composition measured with SOHO/CELIAS/CTOF at 1 AU compared to the studies of Gloeckler et al. (2000) and Allegrini et al. (2005).

Ion	M / Q	This work	Gloeckler et al.	Allegrini et al.
Ion	[amu e^-1]	This work	(2000)	(2005)

C⁺	12	≡1	≡1	≡1
N⁺	14	0.23 ± 0.02	0.27 ± 0.04	0.42 ± 0.09
O⁺	16	0.56 ± 0.04	0.68 ± 0.07	0.99 ± 0.15
Ne⁺	20	0.16 ± 0.01	0.22 ± 0.02	0.14 ± 0.03
Mg⁺	24	0.28 ± 0.02 ^a	0.33 ± 0.05	–
Mg^{2 +}	12	0.08 ± 0.02 ^b	–	–
Si⁺	28	0.21 ± 0.02 ^a	0.22 ± 0.04	–

v_sw [km s^-1]		270–406	318–864	~750
r [AU]		1	1.49	2
L [°]		0	<60	70

Notes. The abundance ratios were normalised to the abundance of C⁺. In the bottom rows, the corresponding heliocentric distances, r, and heliographic latitudes, L, of the observations are shown.

^(a)

Possibly affected by a large systematic error.

^(b)

Sensitive to background subtraction.

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.