Computer Science
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3177s&link_type=abstract
Spitzer Proposal ID #3177
Computer Science
Scientific paper
We propose to perform an in-depth study of the molecular ISM in the nearby low-metallicity dwarf galaxy NGC 4214. The goal is to study the transition from neutral to molecular gas in a metal-poor environment - a fundamental process that drives star formation in galaxies. NGC 4214 is one of the few nearby dwarf galaxies where high-quality CO and HI observations exist and where drastically different star formation environments are located in close proximity. Using IRS in spectral mapping mode, we propose to carry out a detailed study of the S(0), S(1) and S(2) pure rotational lines of H2 at 28.2, 17.0, and 12.3 microns in NGC 4214. We will accurately map the individual molecular clouds and HI peaks to empirically test models of star formation where low-metallicity molecular clouds are predicted to have dense CO cores, surrounded by diffuse neutral carbon envelopes with co-spatial H2. The results of this investigation will offer the first empirical insight into the behavior of the neutral-to-molecular transition at comparatively low metallicities, a typical environment expected to prevail at large lookback times.
Cannon John
Skillman Evan
Walter Fabian
No associations
LandOfFree
Probing the Neutral to Molecular Transition in the Dwarf Starburst Galaxy NGC 4214 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probing the Neutral to Molecular Transition in the Dwarf Starburst Galaxy NGC 4214, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the Neutral to Molecular Transition in the Dwarf Starburst Galaxy NGC 4214 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1823697