Results 181 to 186 of about 1,698,518 (186)

Cooling of Interstellar Clouds of Neutral Hydrogen and the Abundance of Molecular Hydrogen

Publications of the Astronomical Society of Japan, 1968
Abstract The structure of the radiative cooling layer behind the shock front due to interstellar cloud-collision is calculated for a collision velocity of Mach number 20 (~ 16 km/sec). The magnetic field is assumed to be 0 or 10–5 gauss parallel to the shock front. The cooling mechanisms involved are the collision of H atoms with O atoms,
openaire   +1 more source

The distance to two neutral hydrogen clouds

The Astrophysical Journal, 1996
A lower limit to the distance of the high-velocity cloud (HVC) complex A of 4 kpc (z > 3 kpc) is derived. The HVC is detected toward the Seyfert galaxy Mrk 106 in Mg II lambda lambda 2796, 2803 absorption spectra taken with Hubble Space Telescope (HST) proving that Mg+ is present in the cloud. It is not detected in the Mg II spectra of two stars, PG
Wakker, B, Howk, C, Schwarz, U, vanWoerden, H, Beers, T, Wilhelm, R, Kalberla, P, Danly, L   +7 more
openaire   +1 more source

Correlation Between the Twelve High-Velocity Neutral Hydrogen Clouds and a Feature of the Sky in the Radio Continuum

Nature, 1965
John Meaburn
exaly  

H I Clouds With Spin Temperatures Less Than 25'K. H. Physical Properties of 'Two Neutral Hydrogen Clouds

Astronomical Journal, 1972
G R Knapp, G L Verschuur
exaly  

Energetic Neutral Atoms as the Explanation for the High-Velocity Hydrogen Around HD 209458b

Nature, 2008
Mats Holmström, Helmut Lammer, Peter Wurz   +2 more
exaly  

A High Resolution Study of the Distribution and Motions of Neutral Hydrogen in the Small Cloud of Magellan

Australian Journal of Physics, 1967
exaly