CO $J$ = 3-2 observations of molecular line sources having high-velocity wings

Richardson, K. J.; White, Glenn J.; Avery, L. W.; Lesurf, J. C. G. and Harten, R. H. (1985). CO $J$ = 3-2 observations of molecular line sources having high-velocity wings. The Astrophysical Journal, 290 pp. 637–652.

URL: http://articles.adsabs.harvard.edu/cgi-bin/nph-iar...

Abstract

Twelve molecular line sources which exhibit high-velocity wings in the CO $J$ = 1-0 rotational transition have been observed in the CO $J$ = 3-2 line. The densities derived using observations of the transition in combination with the lower lines can be considerably higher than those derived purely from mapping the CO $J$ = 1-0 transition, in some cases by over an order of magnitude. This general conclusion tends to increase the likelihood that the outflows are capable of supporting clouds against free-fall gravitational collapse. Low values of apparent CO fractional abundance per unit velocity gradient are derived, which may be due to a depletion of CO in the outflow regions or alternatively, to clumping of the outflowing molecular gas.

Viewing alternatives

Look up in Google Scholar
No digital document available to download for this item

Item Actions

Export

About

CORE (COnnecting REpositories)

Recommendations