The 2024 KIDA network for interstellar chemistry | Astronomy & Astrophysics (A&A)

Home

All issues

Volume 689 (September 2024)

A&A, 689 (2024) A63

Full HTML

Open Access

Table 3

Key reactions measured at 10⁵ yr.

Reactions	Impacted species
H₂ + CR^(*) → H+ + e⁻	187
He + CR^(*) → He+ + e⁻	49
C₃ + CRP^(**) → C + C₂	30
C + C₃ → C₄ + Photon	CCH, C₃, CCO, HCO, OCN, C₂H₂, c-C3H, C₃N, C₃O, C₃S, l-C₃H, c-C₃H₂, HC₃N, HNCCC, l-C₃H₂, HC₃S, HC₃O, HC₄N, C₅O, C₃H⁺, ${CH}_{3}^{+}, c - C_{3} H_{2}^{+}$ ${\rm{CH}}_3^ + ,{\rm{c}} - {{\rm{C}}_3}{\rm{H}}_2^ +$ , HC₃O⁺, SiC₃H⁺, HC₃NH⁺, $c - C_{3} H_{3}^{+}$ ${\rm{c}} - {{\rm{C}}_3}{\rm{H}}_3^ +$ , H₂C₃O⁺, $1 - C_{3} H_{3}^{+}$ $1 - {{\rm{C}}_3}{\rm{H}}_3^ +$ , H₂C₃S⁺, $C_{5} H_{3}^{+}$ ${{\rm{C}}_5}{\rm{H}}_3^ +$
O + CN → N + CO	N, CN, N₂, NC₆N, NC₈N, N₂H⁺
$H_{2} + {CH}_{3}^{+} \to {CH}_{5}^{+} + Photon$ ${{\rm{H}}_2} + {\rm{CH}}_3^ + \to {\rm{CH}}_5^ + + {\rm{Photon}}$	${CH}_{4}, {SiCH}_{3}, {CH}_{2} CCH, C_{4} H_{3}, C_{2} H_{3}^{+}, {CH}_{5}^{+}$ ${\rm{C}}{{\rm{H}}_4},{\rm{SiC}}{{\rm{H}}_3},{\rm{C}}{{\rm{H}}_2}{\rm{CCH}},{{\rm{C}}_4}{{\rm{H}}_3},{{\rm{C}}_2}{\rm{H}}_3^ + ,{\rm{CH}}_5^ +$
$CO + H_{3}^{+} \to H_{2} + {HCO}^{+}$ ${{\rm{CO}} + {\rm{H}}_3^ + \to {{\rm{H}}_2} + {\rm{HC}}{{\rm{O}}^ + }}$	${OH}^{+}, H_{2} F^{+}, H_{2} O^{+}, H_{3}^{+}, H_{3} O^{+}$ ${\rm{O}}{{\rm{H}}^ + },{{\rm{H}}_2}{{\rm{F}}^ + },{{\rm{H}}_2}{{\rm{O}}^ + },{\rm{H}}_3^ + ,{{\rm{H}}_3}{{\rm{O}}^ + }$
$H_{2} + {Si}^{+} \to {SiH}_{2}^{+} + Photon$ ${{{\rm{H}}_2} + {\rm{S}}{{\rm{i}}^ + } \to {\rm{SiH}}_2^ + + {\rm{Photon}}}$	$SiH, SiS, HNSi, {SiH}_{2}^{+}$ ${\rm{SiH}},{\rm{SiS}},{\rm{HNSi}},{\rm{SiH}}_2^ +$
$O + H_{3}^{+} \to H_{2} + O^{+}$ ${\rm{O}} + {\rm{H}}_3^ + \to {{\rm{H}}_2} + {{\rm{O}}^ + }$	OH⁺, H₂O⁺, H₃O⁺
c-C₃H₂ + Si⁺ → H + SiC₃H⁺	c-SiC₂, l-SiC₃, SiC₃H⁺
C + NH₃ → H₂ CN + H	${NH}_{3}, {CH}_{3} {NH}_{2}, {CH}_{3} {NH}_{3}^{+}$ ${\rm{N}}{{\rm{H}}_3},{\rm{C}}{{\rm{H}}_3}{\rm{N}}{{\rm{H}}_2},{\rm{C}}{{\rm{H}}_3}{\rm{NH}}_3^ +$
H₃O⁺ + e⁻ → H + H + OH	H₂O, HCOOH, H₃O⁺
HF + C⁺ → H + CF⁺	HF, CF⁺
S + CH₃ → H + H₂CS	H₂CS, HCCS
CO + He⁺ → He + O + C⁺	${He}^{+}, {NH}_{4}^{+}$ ${\rm{H}}{{\rm{e}}^ + },{\rm{NH}}_4^ +$
N + CN → C + N₂	N, N₂
O + CCH → CH + CO	CCH, CCO
$Cl + H_{3}^{+} \to H_{2} + HCl +$ ${\rm{Cl}} + {\rm{H}}_3^ + \to {{\rm{H}}_2} + {\rm{HCl}} +$	Cl, HCl
C + C₅O → CO + C₅	C₅O, HC₅O⁺
C + H₂CO → CO + CH₂	HS, H₂CO
Mg + HCO⁺ → HCO + Mg⁺	Mg, Mg⁺
$H_{2} + C_{2} H_{2}^{+} \to C_{2} H_{4}^{+} + Photon$ ${{\rm{H}}_2} + {{\rm{C}}_2}{\rm{H}}_2^ + \to {{\rm{C}}_2}{\rm{H}}_4^ + + {\rm{Photon}}$	$C_{2} H_{2}^{+}, C_{2} {HO}^{+}$ ${{\rm{C}}_2}{\rm{H}}_2^ + ,{{\rm{C}}_2}{\rm{H}}{{\rm{O}}^ + }$
$H_{2} + C_{3} H^{+} \to l - C_{3} H_{3}^{+} + Photon$ ${{{\rm{H}}_2} + {{\rm{C}}_3}{{\rm{H}}^ + } \to {\rm{l}} - {{\rm{C}}_3}{\rm{H}}_3^ + + {\rm{Photon}}}$	$C_{3} H^{+}, 1 - C_{3} H_{3}^{+}$ ${{{\rm{C}}_3}{{\rm{H}}^ + },1 - {{\rm{C}}_3}{\rm{H}}_3^ + }$
$H_{2} + C_{3} H^{+} \to c - C_{3} H_{3}^{+} + Photon$ ${{{\rm{H}}_2} + {{\rm{C}}_3}{{\rm{H}}^ + } \to {\rm{c}} - {{\rm{C}}_3}{\rm{H}}_3^ + + {\rm{Photon}}}$	$C_{3} H^{+}, l - C_{3} H_{3}^{+}$ ${{{\rm{C}}_3}{{\rm{H}}^ + },{\rm{l}} - {{\rm{C}}_3}{\rm{H}}_3^ + }$
${NH}_{3} + {CH}_{3}^{+} \to {CH}_{3} {NH}_{3}^{+} + Photon$ ${{\rm{N}}{{\rm{H}}_3} + {\rm{CH}}_3^ + \to {\rm{C}}{{\rm{H}}_3}{\rm{NH}}_3^ + + {\rm{Photon}}}$	${CH}_{3} {NH}_{2}, {CH}_{3} {NH}_{3}^{+}$ ${{\rm{C}}{{\rm{H}}_3}{\rm{N}}{{\rm{H}}_2},{\rm{C}}{{\rm{H}}_3}{\rm{NH}}_3^ + }$
$C_{2} H_{4}^{+} + e^{-} \to H + C_{2} H_{3}$ ${{{\rm{C}}_2}{\rm{H}}_4^ + + {{\rm{e}}^ - } \to {\rm{H}} + {{\rm{C}}_2}{{\rm{H}}_3}}$	C₂H₃, CH₃CO
HC₃NH⁺ + e⁻ → H + HNCCC	HNCCC, C₃N⁻
CF⁺ + e⁻ → C + F	HF, CF⁺
HCS⁺ + e⁻ → S + CH	HCS⁺, OCS⁺
SiNC⁺ + e⁻ → Si + CN	SiN⁺, SiNC⁺
${NH}_{4}^{+} + e^{-} \to H + {NH}_{3}$ ${\rm{NH}}_4^ + + {{\rm{e}}^ - } \to {\rm{H}} + {\rm{N}}{{\rm{H}}_3}$	${NH}_{2}, {NH}_{4}^{+}$ ${\rm{N}}{{\rm{H}}_2},{\rm{NH}}_4^ +$
C₅H + e⁻ → C₅H⁻ + Photon	C₅H₂, C₅H⁻

Notes. ^(*)CR means cosmic-ray particle. ^(**)CRP means photons induced by cosmic-rays. Boldface reactions are the reactions also listed in Table 4.

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.