NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-07-20 T07:15:09 PDT
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For refcode 2015MNRAS.447.1531C:
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NED Abstract

Copyright by Royal Astronomical Society. 2015MNRAS.447.1531C Update on H I data collection from Green Bank, Parkes and Arecibo telescopes for the Cosmic Flows project Courtois, Helene M.; Tully, R. Brent Abstract. Cosmic Flows is an international multi-element project with the goal to map motions of galaxies in the local Universe. Kinematic information from observations in the radio H I line and photometry at optical or near-infrared bands are acquired to derive the large majority of distances that are obtained through the luminosity-linewidth or Tully-Fisher relation. This paper gathers additional observational radio data, frequently unpublished, retrieved from the archives of Green Bank, Parkes and Arecibo telescopes. Extracted H I profiles are consistently processed to produce linewidth measurements. Our current 'All-Digital H I Catalog' contains a total of 20 343 H I spectra for 17 738 galaxies with 14 802 galaxies with accurate linewidth measurement useful for Tully-Fisher galaxy distances. This addition of 4117 new measurements represents an augmentation of 34 per cent compared to our last release. Key words: catalogues, galaxies: distances and redshifts, radio lines: galaxies
Retrieve 15327 NED objects in this reference.
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