Results 11 to 20 of about 43,858 (281)
Measurements of Magnetic Fields in Interstellar Clouds of Neutral Hydrogen
The Astrophysical Journal, 1969 A new series of measurements of the Zeeman splitting of 21-cm spectral lines has revealed strong (> 10−5 G) magnetic field effects in several neutral hydrogen clouds in the direction of HII regions. Low limits have been set to the line-of-sight field components in six other regions of space.
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High Velocity Neutral Hydrogen Clouds [PDF]
Symposium - International Astronomical Union, 1974 A review is given of the observations of neutral hydrogen high velocity clouds (|ν| > 80 km s−1) in and near the Galaxy. The positive and negative clouds are seen to have different distributions in the sky, following roughly the velocity pattern of galactic rotation.
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On the Gas Surrounding High Redshift Galaxy Clusters [PDF]
, 2000 Francis & Hewett (1993) identified two 10-Mpc scale regions of the high redshift universe that were seemingly very overdense in neutral hydrogen. Subsequent observations showed that at least one of these gas-rich regions enveloped a cluster of galaxies ...
Binette +13 more
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NEUTRAL HYDROGEN CLOUDS IN THE M81/M82 GROUP
The Astronomical Journal, 2008 We have observed a 3 degree x 3 degree area centered on the M81/M82 group of galaxies using the Robert C. Byrd Green Bank Telescope (GBT) in a search for analogs to the High Velocity Clouds (HVCs) of neutral hydrogen found around our galaxy. The velocity range from -605 to -85 km/s and 25 to 1970 km/s was searched for HI clouds.
Chynoweth, Katie M +5 more
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Are Compact High-Velocity Clouds Extragalactic Objects? [PDF]
, 2003 Compact high-velocity clouds (CHVCs) are the most distant of the HVCs in the Local Group model and would have HI volume densities of order 0.0003/cm^3. Clouds with these volume densities and the observed neutral hydrogen column densities will be largely ...
Braun R. +7 more
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A Component of the Smith High-velocity Cloud Now Crossing the Galactic Plane
The Astrophysical Journal, 2023 We have identified a new structure in the Milky Way: a leading component of the Smith high-velocity cloud that is now crossing the Galactic plane near longitude 25°. Using new 21 cm H i data from the Green Bank Telescope (GBT), we measured the properties
Felix J. Lockman +3 more
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GASS High Velocity Clouds in the Region of the Magellanic Leading Arm [PDF]
, 2012 We present a catalog of high-velocity clouds in the region of the Magellanic Leading Arm. The catalog is based on neutral hydrogen (\HI) observations from the Parkes Galactic All-Sky Survey (GASS).
Begum +31 more
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Far-ultraviolet Dust Extinction and Molecular Hydrogen in the Diffuse Milky Way Interstellar Medium
The Astrophysical Journal, 2023 We aim to compare variations in the full-UV dust extinction curve (912–3000 Å), with the H i /H _2 /total H content along diffuse Milky Way sightlines, to investigate possible connections between ISM conditions and dust properties. We combine an existing
Dries Van De Putte +4 more
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Neutral Hydrogen Clouds Near Early-Type Dwarf Galaxies of the Local Group [PDF]
The Astronomical Journal, 2006 Parkes neutral hydrogen 21 cm line (HI) observations of the surroundings of 9 early-type Local Group dwarfs are presented. We detected numerous HI clouds in the general direction of those dwarfs and these clouds are often offset from the optical center of the galaxies.
Bouchard, Antoine +2 more
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The Diffuse Ionized Gas Halo of the Large Magellanic Cloud
The Astrophysical Journal, 2023 The Large Magellanic Cloud (LMC) has an extensive H α emission halo that traces an extended, warm ionized component of its interstellar medium. Using the Wisconsin H α Mapper telescope, we present the first kinematic H α survey of an extensive region ...
B. M. Smart +6 more
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