Results 11 to 20 of about 1,698,518 (186)

Compact Galactic Neutral Hydrogen Clouds in the GALFA-HI Survey [PDF]

open access: yes, 2014
The more sensitive the observations, the more complex the gas in our Galaxy appears. Since the detection of neutral hydrogen in 1951, each new survey has revealed new structure. Using the GALFA-HI survey, we have discovered five populations of compact neutral hydrogen clouds.
Saul, Destry Rose
openaire   +3 more sources

A New Look at the Kinematics of Neutral Hydrogen in the Small Magellanic Cloud

open access: yesAstrophysical Journal, 2004
We have used the latest HI observations of the Small Magellanic Cloud (SMC), obtained with the Australia Telescope Compact Array and the Parkes telescope, to re-examine the kinematics of this dwarf, irregular galaxy. A large velocity gradient is found in the HI velocity field with a significant symmetry in iso-velocity contours, suggestive of a ...
Lister Staveley-Smith   +2 more
exaly   +3 more sources

The Origin of Neutral Hydrogen Clouds in Nearby Galaxy Groups: Exploring the Range of Galaxy Interactions [PDF]

open access: yesAstronomical Journal, 2011
35 pages, 10 figures, AJ ...
Polisensky, Emil   +3 more
exaly   +3 more sources

Studies of Neutral-Hydrogen Cloud Structure

open access: yesAstrophysical Journal, Supplement Series, 1974
G L Verschuur
exaly   +2 more sources

Neutral Hydrogen in the Magellanic Clouds [PDF]

open access: yesSymposium - International Astronomical Union, 1999
We review observations of neutral atomic hydrogen (HI) in the Magellanic Clouds (MCs). Being the nearest gas-rich neighbours of the Milky Way the MCs give us an excellent opportunity to study in detail the structure and evolution of the interstellar medium (ISM) and the effect of interactions between galaxies.
L. Staveley-Smith   +2 more
openaire   +1 more source

H i Absorption in Low-power Radio AGNs Detected by FAST

open access: yesThe Astrophysical Journal, 2023
We report the discovery of three H i absorbers toward low-power radio active galactic nuclei (AGNs) in a pilot H i absorption survey with the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Qingzheng Yu   +3 more
doaj   +1 more source

Black holes, stationary clouds and magnetic fields

open access: yesPhysics Letters B, 2021
As the electron in the hydrogen atom, a bosonic field can bind itself to a black hole occupying a discrete infinite set of states. When (i) the spacetime is prone to superradiance and (ii) a confinement mechanism is present, some of such states are ...
Nuno M. Santos, Carlos A.R. Herdeiro
doaj   +1 more source

FEASTS: IGM Cooling Triggered by Tidal Interactions through the Diffuse H i Phase around NGC 4631

open access: yesThe Astrophysical Journal, 2023
We use the single-dish radio telescope Five-hundred meter Aperture Spherical Telescope (FAST) to map the H i in the tidally interacting NGC 4631 group with a resolution of 3.′24 (7 kpc), reaching a 5 σ column density limit of 10 ^17.9 cm ^−2 assuming a ...
Jing Wang   +16 more
doaj   +1 more source

A Neutral Hydrogen Cloud in the Vicinity of the Elliptical Galaxy NGC 4318 [PDF]

open access: yesSymposium - International Astronomical Union, 1987
NGC 4318, in the Virgo Cluster, has the following optical properties: —morphological type: E (Nilson, 1973)—BoT magnitude : 13.8 (Nilson, 1973)—photometric axis : 0.8′ × 0.6′ (Nilson, 1973)—heliocentric radial velocity: −300 km s−1 (Arakelian et al., 1975)1247± 15 km s (Tonry, 1981)1215 km s−1 (Huchra et al., 1983)
Bottinelli, L.   +2 more
openaire   +2 more sources

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