Cosmic-ray-induced dissociation and reactions in warm interstellar ices

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Volume 573 (January 2015)

A&A, 573 (2015) A38

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Table 1

Selected experimental results of molecule irradiation by heavy ions, related to interstellar ices.

No.	Species	Initial	Ion	Energy,	T, K	Cross section	Source	Used in
		mixture		MeV		σ_d, cm²		model?


1	CH₃	CH₄	₅₆Fe²²⁺	267	15	4.57E-13	Mejía et al. (2013)	yes
2	CH₃	CH₄	₇₀Zn²⁶⁺	606	15	1.99E-13	Mejía et al. (2013)
3	CH₄	CH₃OH	₇₀Zn²⁶⁺	606	15	9.80E-14	de Barros et al. (2011)
4	CH₄	CH₄	₅₆Fe²²⁺	267	15	6.80E-14	Mejía et al. (2013)	yes
5	CH₄	CH₄	₇₀Zn²⁶⁺	606	15	7.20E-14	Mejía et al. (2013)
6	H₂O	HCOOH	₅₆Fe²²⁺	267	15	2.20E-13	Andrade et al. (2013)
7	H₂O	H₂O	₅₈Ni¹³⁺	52	13	1.10E-13	Pilling et al. (2010b)
8	H₂O	H₂O:CO₂ 10:1	₅₈Ni¹³⁺	52	13	1.00E-13	Pilling et al. (2010b)
9	H₂O	H₂O:CO₂ 1:1	₅₈Ni¹³⁺	52	13	1.00E-13	Pilling et al. (2010b)
10	H₂O	H₂O:NH₃ 2:1	₅₈Ni¹³⁺	46	13	2.00E-13	Pilling et al. (2010a)
11	H₂O	H₂O:NH₃:CO 5:3:2	₅₈Ni¹³⁺	46	13	2.00E-13	Pilling et al. (2010a)	yes
12	NH₃	H₂O:NH₃ 2:1	₅₈Ni¹³⁺	46	13	1.30E-13	Pilling et al. (2010a)
13	NH₃	H₂O:NH₃:CO 5:3:2	₅₈Ni¹³⁺	46	13	1.40E-13	Pilling et al. (2010a)	yes
14	C₂H₂	CH₄	₅₆Fe²²⁺	267	15	3.60E-14	Mejía et al. (2013)	yes
15	C₂H₂	CH₄	₇₀Zn²⁶⁺	606	15	1.70E-14	Mejía et al. (2013)
16	C₂H₄	CH₄	₅₆Fe²²⁺	267	15	1.27E-13	Mejía et al. (2013)	yes
17	C₂H₄	CH₄	₇₀Zn²⁶⁺	606	15	1.40E-13	Mejía et al. (2013)
18	C₂H₆	CH₄	₅₆Fe²²⁺	267	15	1.77E-13	Mejía et al. (2013)	yes
19	C₂H₆	CH₄	₇₀Zn²⁶⁺	606	15	1.56E-13	Mejía et al. (2013)
20	CH₂OH	CH₃OH	₇₀Zn²⁶⁺	606	15	9.21E-14	de Barros et al. (2011)	yes
21	CH₃OH	CH₃OH	₇₀Zn²⁶⁺	606	15	1.38E-13	de Barros et al. (2011)	yes
22	CO	HCOOH	₅₆Fe²²⁺	267	15	2.10E-13	Andrade et al. (2013)	yes
23	CO	CH₃OH	₇₀Zn²⁶⁺	606	15	4.40E-14	de Barros et al. (2011)
24	CO	CO₂	₅₈Ni¹³⁺	52	13	1.10E-12	Pilling et al. (2010b)
25	CO	CO₂:H₂O 1:10	₅₈Ni¹³⁺	52	13	7.30E-13	Pilling et al. (2010b)
26	CO	CO₂:H₂O 1:1	₅₈Ni¹³⁺	52	13	4.40E-13	Pilling et al. (2010b)	yes
27	CO	H₂O:NH₃:CO 5:3:2	₅₈Ni¹³⁺	46	13	1.90E-13	Pilling et al. (2010a)
28	CO	CO	₅₈Ni¹³⁺	50	13	1.00E-13	Seperuelo Duarte et al. (2010)
29	CO	CO	₆₄Ni²⁴⁺	537	13	3.50E-14	Seperuelo Duarte et al. (2010)
30	H₂CO	CH₃OH	₇₀Zn²⁶⁺	606	15	6.45E-13	de Barros et al. (2011)
31	H₂O₂	H₂O	₅₈Ni¹³⁺	52	13	1.00E-12	Pilling et al. (2010b)
32	H₂O₂	H₂O:CO₂ 10:1	₅₈Ni¹³⁺	52	13	9.30E-13	Pilling et al. (2010b)	yes
33	H₂O₂	H₂O:CO₂ 1:1	₅₈Ni¹³⁺	52	13	6.90E-13	Pilling et al. (2010b)
34	CO₂	HCOOH	₅₆Fe²²⁺	267	15	2.30E-13	Andrade et al. (2013)	yes
35	CO₂	HCOOH	₅₆Fe²²⁺	267	15	2.20E-13	Andrade et al. (2013)
36	CO₂	CH₃OH	₇₀Zn²⁶⁺	606	15	2.40E-13	de Barros et al. (2011)
37	CO₂	CO₂	₅₈Ni¹³⁺	52	13	1.80E-13	Pilling et al. (2010b)
38	CO₂	H₂O:CO₂ 10:1	₅₈Ni¹³⁺	52	13	(0.7–1)E-13	Pilling et al. (2010b)
39	CO₂	H₂O:CO₂ 1:1	₅₈Ni¹³⁺	52	13	(1.6–2.1)E-13	Pilling et al. (2010b)
40	CO₂	CO₂	₅₈Ni¹¹⁺	46	13	1.70E-13	Seperuelo Duarte et al. (2009)
41	HCOOH	HCOOH	₅₆Fe²²⁺	267	15	≈1E-12	Andrade et al. (2013)	yes
42	O₃	CO₂	₅₈Ni¹³⁺	52	13	1.60E-12	Pilling et al. (2010b)
43	O₃	CO₂:H₂O 1:1	₅₈Ni¹³⁺	52	13	5.00E-13	Pilling et al. (2010b)	yes
44	CH₃OCHO	CH₃OH	₇₀Zn²⁶⁺	606	15	5.88E-13	de Barros et al. (2011)
45	CO₃	CO₂	₅₈Ni¹³⁺	52	13	9.70E-12	Pilling et al. (2010b)
46	CO₃	CO₂:H₂O 1:1	₅₈Ni¹³⁺	52	13	3.10E-12	Pilling et al. (2010b)
47	H₂CO₃	CO₂:H₂O 1:1	₅₈Ni¹³⁺	52	13	9.90E-13	Pilling et al. (2010b)

Notes. Cross sections and other data are given for species that were part of an initial mixture (the interstellar ice analog) for each experimental setup.

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