Title

NITROGEN SULFIDE IN QUIESCENT DARK CLOUDS

Publication Date

1994

Journal or Book Title

ASTROPHYSICAL JOURNAL

Abstract

We report the first detection of interstellar nitrogen sulfide (NS) in cold dark clouds. Several components of the (2)Pi1/2, J = 3/2 to 1/2 and J = 5/2 to 3/2 transitions were observed in TMC-1 and L134N. The inferred column density for TMC-1 is NNS approximately 8 x 1012/sq cm toward the NH3 peak in that cloud, and in L134N is NNS approximately 3 x 1012/sq cm toward the position of peak NH3 emission. These values correspond to fractional abundances relative to molecular hydrogen of fNS approximately 8 x 10-10 for TMC-1, and fNS approximately 6 x 10-10 for L134N. The NS emission is extended along the TMC-1 ridge and is also extended in L134N. The measured abundances are significantly higher than those predicted by some recent gas phase ion-molecule models.

Comments

The published version is located at http://adsabs.harvard.edu/full/1994ApJ...422..621M

Volume

422

Pages

621-625

Issue

2

This document is currently not available here.

Share

COinS