Ion chemistry in space

• We review the gas-phase chemistry in extraterrestrial space that is driven by reactions with atomic and molecular ions. Ions are ubiquitous in space and are potentially responsible for the formation of increasingly complex interstellar molecules. Until recently, positively charged atoms and molecules were the only ions known in space; however, this situation has changed with the discovery of various molecular anions. This review covers not only the observation, distribution and reactions of ions in space, but also laboratory-based experimental and theoretical methods for studying these ions. Recent results from space-based instruments, such as those on the Cassini-Huygens space mission and the Herschel Space Observatory, are highlighted.

Subject headings

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

cosmic-ray ionization

dense interstellar clouds

recombination rate

coefficients

titans upper-atmosphere

polycyclic aromatic-hydrocarbons

cross-section measurements

star-forming regions

inter-stellar clouds

carbon-chain anions

hot molecular cores

eung ac

1968

physical review letters

v21

p1701

llene gi

1984

journal of physical chemistry

v88

p6680

rlich d

1989

astrophysical journal

v347

p849

rlich d

1990

journal of chemical physics

v92

p2377

nabe t

1993

physical review letters

v70

p422

kee cf

1989

astrophysical journal

v345

p782

aizy p

1991

nature

v349

p393

x jl

1992

planetary and space science

v40

p1663

rlich d

1992

chemical reviews

v92

p1509

Publication and Content Type

ref (subject category)

art (subject category)