THE EXTRAGALACTIC DISTANCE DATABASE: ALL DIGITAL H I PROFILE CATALOG

Journal Article · Tue Dec 15 04:00:00 EST 2009 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/138/6/1938; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301496

Courtois, Helene M; Bonhomme, Nicolas ^[1]; Tully, R Brent; Zavodny, Maximilian; Barnes, Austin ^[2]; Fisher, J Richard ^[3]

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1. Universite Lyon 1, CNRS/IN2P3/INSU, Institut de Physique Nucleaire, Lyon (France)
2. Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu HI 96822 (United States)
3. National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903 (United States)

An important component of the Extragalactic Distance Database is a group of catalogs related to the measurement of H I line profile parameters. One of these is the All Digital H I catalog which contains an amalgam of information from new data and old. The new data result from observations with Arecibo and Parkes Telescopes and with the Green Bank Telescope, including continuing input since the award of the NRAO Cosmic Flows Large Program. The old data have been collected from archives, wherever available, particularly the Cornell University Digital H I Archive, the Nancay Telescope extragalactic H I archive, and the Australia Telescope H I archive. The catalog currently contains information on {approx}15, 000 profiles relating to {approx}13, 000 galaxies. The channel-flux per channel files, from whatever source, is carried through a common pipeline. The derived parameter of greatest interest is W {sub m50}, the profile width at 50% of the mean flux. After appropriate adjustment, the parameter W{sub mx} is derived, the line width that statistically approximates the peak-to-peak maximum rotation velocity before correction for inclination, 2V {sub max}sini.

• OSTI ID: 21301496
• Journal Information: Astronomical Journal (New York, N.Y. Online), Journal Name: Astronomical Journal (New York, N.Y. Online) Journal Issue: 6 Vol. 138; ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
APPROXIMATIONS
CATALOGS
GALAXIES
INCLINATION
LINE WIDTHS
RED SHIFT
TELESCOPES