Using H3+ and H2D+ as probes of star-forming regions

Details Using H3+ and H2D+ as probes of star-forming regions Using H3+ and H2D+ as probes of star-forming regions

2006-02-15

arxiv.org/abs/astro-ph/0602340v1

Phil.Trans.Roy.Soc.Lond. A364 (2006) 3101-3106

Astronomy and Astrophysics

Astrophysics

Refereed review, 6 pages, to appear in Phil. Trans. R. Soc. A

Scientific paper

10.1098/rsta.2006.1879

The H3+ and H2D+ ions are important probes of the physical and chemical conditions in regions of the interstellar medium where new stars are forming. This paper reviews how observations of these species and of heavier ions such as HCO+ and H3O+ can be used to derive chemical and kinematic properties of nearby pre-stellar cores, and the cosmic-ray ionisation rate toward more distant regions of high-mass star formation. Future prospects in the field are outlined at the end.

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