Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982nyasa.395..242h&link_type=abstract
(NASA, National Science Foundation, New York Academy of Sciences, et al., Symposium on the Orion Nebula to Honor Henry Draper, N
Astronomy and Astrophysics
Astronomy
8
Astronomical Spectroscopy, Orion Nebula, Shock Wave Propagation, Carbon Monoxide, Gas Spectroscopy, Hydrogen, Hydroxyl Emission, Infrared Astronomy, Interstellar Chemistry
Scientific paper
Results are presented of shock modeling of the H2, CO, and OH infrared emission lines in the Becklin-Neugebauer-Kleinmann-Low region of the Orion Molecular Cloud-1. The strength of the preshock magnetic field is estimated to be approximately 1 mGs, which indicates that magnetic pressure may help support the gas in this region. Determinations of the shock speed and the preshock density, along with the measured extent of the gas, show that the momentum and energy in the swept-up shocked material is rather high compared with the usual estimates of the available momentum and energy from the embedded sources. The abundance of shock-heated CO is found to be close to the solar abundance of carbon, and the extinction to the 2-micron region of H2 is approximately 2-2.5 mag. In addition, it is determined that the high-velocity wings of the H2 emission lines are most likely produced either behind fast dissociative shock waves or behind slower nondissociative shock waves traversing high-speed material.
No associations
LandOfFree
Shock waves in Orion 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 Shock waves in Orion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock waves in Orion will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1031857