NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-12-17 T02:16:54 PST
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For refcode 2003A&A...412...57P:
Retrieve 16872 NED objects in this reference.
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NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2003A&A...412...57P HYPERLEDA II. The homogenized HI data G. Paturel, G. Theureau, L. Bottinelli, L. Gouguenheim, N. Coudreau-Durand, N. Hallet and C. Petit Received 25 March 2003 / Accepted 29 July 2003 After a compilation of HI data from 611 references and new observations made in Nancay, we produce a catalog of homogenized HI data for 16781 galaxies. The homogenization is made using the EPIDEMIC method from which all data are progressively converted into the adopted standard. The result is a catalog giving: 1) the logarithm of twice the maximum rotation velocity, log 2V_M_^sin i^, converted to the system of Mathewson et al. (1996). This quantity is given without correction for inclination; 2) the HI magnitude, m_21_, (area of the 21-cm line width expressed in magnitude) converted to the flux system of Theureau et al. (1998); 3) the HI velocity, V_HI_, expressed with the optical definition (i.e., using wavelengths instead frequencies). The typical uncertainties are: 0.04 for log 2V_M_^sin i^, 0.25 mag for m_21_ and 9 km s^-1^ for V_HI_. Keywords: galaxies: general, catalogs
Retrieve 16872 NED objects in this reference.
Please click here for ADS abstract

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