Results 1 to 10 of about 1,698,518 (186)
Neutral Hydrogen Clouds in the M81/M82 Group [PDF]
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.
Min Yun, Felix Lockman
exaly +6 more sources
Neutral Hydrogen Clouds Near Early-Type Dwarf Galaxies of the Local Group [PDF]
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.
Claude Carignan +2 more
exaly +5 more sources
Anomalous Neutral Hydrogen Column Densities in Local Interstellar Medium Clouds
The Astrophysical JournalAnalysis of high-resolution spectra of the hydrogen and deuterium Ly α lines provides measurements of interstellar neutral hydrogen column densities N (H i ) to 113 stars within 50 pc of the Sun. Plots of N (H i ) versus distance through the LIC, G, Mic,
Jeffrey L. Linsky, Seth Redfield
doaj +3 more sources
Blowing in the Milky Way Wind: Neutral Hydrogen Clouds Tracing the Galactic Nuclear Outflow [PDF]
Astrophysical Journal, 2018 Abstract We present the results of a new sensitive survey of neutral hydrogen above and below the Galactic Center with the Green Bank Telescope. The observations extend up to Galactic latitude
Kevin C Harrington +2 more
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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.
R D Davies
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Neutral Hydrogen in the Large Magellanic Cloud [PDF]
Symposium - International Astronomical Union, 1964 The neutral hydrogen gas in the Large Magellanic Cloud has been observed with the 14′.5 beam of the Parkes 210-foot telescope and the 48-channel H-line receiver. We wish to present a progress report based on computer reductions of integrated brightness and median radial velocities for some 4200 profiles.
R X McGee
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Properties of Neutral Hydrogen Clouds [PDF]
Symposium - International Astronomical Union, 1974 In the region +19° <b< +30°, 122° <l< 143°, 21-cm line profiles were analyzed into Gaussian components, and these components combined into clouds, by means of computerized procedures. Maps of some of the clouds so defined are presented, and their properties discussed. Many clouds are elongated and/or irregular in shape.
Hugo van Woerden
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Topology of Neutral Hydrogen Within the Small Magellanic Cloud [PDF]
Astrophysical Journal, 2008 In this paper, genus statistics have been applied to an HI column density map of the Small Magellanic Cloud in order to study its topology. To learn how topology changes with the scale of the system, we provide the study of topology for column density maps at varying resolution.
Alexandre Lazarian, S Stanimirović
exaly +3 more sources
A Search for Diffuse Neutral Hydrogen and H I Clouds in the NGC 2403 Group [PDF]
Astronomical Journal, 2009 Accepted by ...
Felix Lockman
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On the Stability of Interstellar Neutral Hydrogen Clouds at Large Z-heights
The Astrophysical JournalGalactic neutral hydrogen (H i ) data drawn from several large-scale surveys have been used to study 32 small clouds found between Galactic longitudes 70° and 140° and latitudes −20° and −45°.
G. L. Verschuur
doaj +2 more sources