Observations of warm carbon chain chemistry in NGC 3576

M. Saul*, N. F H Tothill, C. R. Purcell

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We report observations of warm carbon chain chemistry (WCCC) in NGC 3576, including high angular resolution imaging of an ionization source candidate and the first detection of C5H in a massive star-forming region. In order to investigate the environment associated with birthline emergence, we ask how observed chemical conditions relate to Class 0/1 core differentiation: a systemic shift in peak position between species correlates with giant molecular cloud core gradients in turbulence and age. Emission in several molecular lines including HC3N (11-10), NH3 (1, 1), and C5H supports the G291.3-0.7 ionization front - transitional pre-main-sequence core interaction regulating the WCCC environment.

Original languageEnglish
Article number36
Pages (from-to)1-9
Number of pages9
JournalAstrophysical Journal
Volume798
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes

Keywords

  • Astrochemistry
  • Evolution
  • H II regions
  • ISM: abundances
  • Stars: formation
  • Turbulence

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