Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...443l..41d&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 443, no. 1, p. L41-L43
Astronomy and Astrophysics
Astrophysics
39
Deuterium, Infrared Imagery, Line Spectra, Molecular Excitation, Molecular Gases, Shock Waves, Stellar Envelopes, Stellar Winds, Flux Density, Image Analysis, Plasma Turbulence, Spectrum Analysis, Velocity Distribution
Scientific paper
High-resolution infrared maps of the emission from warm molecular gas in the L1448 outflow region are presented. Comparison of images from H2 lines produced from the first and second vibrational levels demonstrates the presence of two distinct parallel outflows. The main outflow (from the L1148-mm source) is of high excitation and shows remarkably little spatial variation in the 1-0 S(1)/2-1 S(1) intensity ratio, which remains near 10 across the whole ridge. Two explanations are offered: (a) the ridge consists of numerous fine-scale C-type bow shocks and/or (b) supersonic turbulence in a shear layer generates a C-type self-similar shock velocity distribution. The second outflow (from the IRS 3 source) is of low excitation, suggesting a combination of lower density and temperature.
Davis Christopher J.
Smith Michael D.
No associations
LandOfFree
Distinction of parallel outflows in L1448 through H2 excitation 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 Distinction of parallel outflows in L1448 through H2 excitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distinction of parallel outflows in L1448 through H2 excitation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1828838