Statistics – Computation
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...382..182l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 382, Nov. 20, 1991, p. 182-188. Research supported by NSF.
Statistics
Computation
79
Emission Spectra, Galactic Structure, Hydrogen, Interstellar Gas, Milky Way Galaxy, Astronomical Models, Computational Astrophysics, Radio Sources (Astronomy)
Scientific paper
The shape of high-latitude 21-cm H I emission profiles suggests that the local neutral interstellar medium is supported in the Galactic gravitational potential primarily by turbulence, that is, by the motion of individual clouds. Composite H I spectra derived from averages over large areas of the high-latitude sky are modeled by several isothermal components whose equlibrium vertical distribution in a plausible Galactic potential successfully reproduces the observed thickness of the H I layer. The analysis implies that there are several H I populations with differing central density, velocity dispersion, and scale height although they cannot be characterized with precision. The kinetic energy in bulk vertical motions is more than about 6 x 10 exp 51 ergs/sq kpc for a full disk. About 10 percent of the local H I is not part of a relaxed distribution but is infalling or is in ordered flows.
Gehman Curtis S.
Lockman Felix J.
No associations
LandOfFree
Vertical distribution and support of Galactic H I 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 Vertical distribution and support of Galactic H I, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical distribution and support of Galactic H I will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1716909