57 datasets found

The HI4PI data release comprises 21-cm neutral atomic hydrogen data of the Milky Way (-600km/s%3Cvlsr%3C+600km/s for declination >0deg; -470km/s%3Cvlsr%3C+470km/s for...

The HI/OH/Recombination line survey of the Milky Way. The THOR project is a northern Galactic plane survey (15 %3C l %3C 67deg and |b| %3C +-1deg) in HI, four OH, and 19 H alpha...

The `HI Parkes All Sky Survey' (HIPASS) covers the whole southern sky as well as northern declinations up to +25 degrees. HIPASS commenced in Feb 1997, and the last northern...

The Galactic Arecibo L-Band Feed Array H I (GALFA-H I) survey data release 2 (DR2) covers the 21 cm hyperfine transition of Galactic H I from -650 to 650 km s-1, with 0.184 km...

The HI4PI data release comprises 21-cm neutral atomic hydrogen data of the Milky Way (-600km/s%3Cvlsr%3C+600km/s for declination >0deg; -470km/s%3Cvlsr%3C+470km/s for...

The Dominion Radio Astrophysical Observatory, in collaboration with an international Consortium of astronomers, has carried out a high-resolution survey of the atomic hydrogen...

Composite all-sky map of neutral hydrogen column density (N_HI), formed from the Leiden/Dwingeloo HI survey data (Hartmann & Burton 1997) and the composite N_HI map of...

Data Release 1 (DR1) of the GALFA HI data set, obtained with the Arecibo L-band Feed Array (ALFA) on the Arecibo 305m telescope. This neutral hydrogen survey has a resolution of...

The Galactic Arecibo L-Band Feed Array H I (GALFA-H I) survey data release 2 (DR2) covers the 21 cm hyperfine transition of Galactic H I from -650 to 650 km s-1, with 0.184 km...

The HST Hierarchical Progressive Survey (HiPS) has been built by Daniel Durand from CADC and distributed by CDS. It sets together all HST observations done with filters NOT...

The FAST All Sky HI survey (FASHI) was designed to cover the entire sky observable by the Five-hundred-meter Aperture Spherical radio Telescope (FAST), spanning approximately...

We present the global scaling relations between the neutral atomic hydrogen gas, the stellar disc, and the star-forming disc in a sample of 228 nearby galaxies that are both...

The Arecibo Ultra-Deep Survey (AUDS) is a blind HI survey aimed at detecting galaxies beyond the local Universe in the 21-cm emission line of neutral hydrogen (HI). The Arecibo...

We have developed a parallel code called the VoIgt profile Parameter Estimation Routine (VIPER) for automatically fitting the HI Ly{alpha} forest seen in the spectra of...

We present the results from our survey of HI 21-cm absorption, using Giant Metrewave Radio Telescope, Very Large Array and Westerbork Radio Synthesis Telescope, in a sample of...

We have conducted the first blind HI survey covering 480deg^2^ and a heliocentric velocity range from 300 to 1900km/s to investigate the HI content of the nearby spiral-rich...

Extended ultraviolet (XUV) discs have been found in a substantial fraction of late-type - S0, spiral and irregular - galaxies. Similarly, most late-type spirals have an extended...

We have used the Parkes Multibeam system and the Sloan Digital Sky Survey to assemble a sample of 195 galaxies selected originally from their HI signature to avoid biases...

We revisit the mass ratio {eta}galaxy between molecular hydrogen (H2) and atomic hydrogen (HI) in different galaxies from a phenomenological and theoretical viewpoint. Cone...

We look for signs of the HI transverse proximity effect in the spectra of 130 quasi-stellar object (QSO) pairs, most with transverse separations in the plane of the sky of...