Open AccessH 3 + in diffuse interstellar gas
Author(s) -
CecchiPestellini Cesare,
Dalgarno Alexander
Publication year - 2000
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2000.03320.x
Subject(s) - physics , astrophysics , interstellar medium , astronomy , galaxy
A model is constructed of the material in front of the star Cygnus OB2 no. 12 in which dense cores are embedded in diffuse clumps of gas. The model reproduces the measured abundances of C 2 and CO, and predicts a column density of 9×10 10 cm −2 for HCO + .