331 datasets found

Keywords: h i line emission

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  • Diffuse neutral hydrogen in HIPASS

    Observations of neutral hydrogen can provide a wealth of information about the distribution and kinematics of galaxies. To learn more about large scale structures and accretion...
  • HI observations of Coma Supercluster

    High sensitivity 21-cm HI line observations with an rms noise level of ~0.5mJy were made of 35 spiral galaxies in the Coma Supercluster, using the refurbished Arecibo telescope,...
  • WSRT wide-field HI survey. II.

    We have used the Westerbork array to carry out an unbiased wide-field survey for HI emission features, achieving an RMS sensitivity of about 18mJy/Beam at a velocity resolution...
  • Starbursts in barred spiral galaxies. VI.

    This paper reports a study of the effect of a bar on the neutral hydrogen (HI) content of starburst and Seyfert galaxies. We also make comparisons with a sample of "normal"...
  • HI synthesis observations in UMa cluster

    In this data paper we present the results of an extensive 21 cm-line synthesis imaging survey of 43 spiral galaxies in the nearby Ursa Major cluster using the Westerbork...
  • Small-scale structures in HI hole of M33

    Recent high-resolution HI observations of M33 reveal a large number of regions that are devoid of emission. We interpret these regions as holes formed by interstellar winds; a...
  • HIDEEP survey

    We have carried out an extremely long integration time (9000s/beam) 21-cm blind survey of 60deg^2^ in Centaurus using the Parkes multibeam system. We find that the noise...
  • Extragalactic star-forming regions

    The relationships between atomic and molecular hydrogen and dust of various sizes in extragalactic star-forming regions are considered, based on observational data from the...
  • Distribution of H I in the ISM. I.

    We compile, from the existing literature, the largest sample to date (842 data points) of hydrogen column density measurements, N(HI), of the gas in the interstellar medium. We...
  • HI survey of AGNs

    We have conducted a new Arecibo survey for HI emission for 113 galaxies with broad-line (type 1) active galactic nuclei (AGNs) out to recession velocities as high as ~35000km/s....
  • HI 21cm forbidden-velocity wings

    We present the results of a search for faint HI 21cm emission line wings at velocities forbidden by Galactic rotation in the Galactic plane using the Leiden/Dwingeloo HI Survey...
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