Kinematics of the Local Universe. XIV. Measurements from the 21 cm line and the HI mass function from a homogeneous catalog gathered with the Nançay radio telescope
Aims: This paper presents 828 new 21 cm neutral hydrogen line measurements carried out with the FORT receiver of the meridian transit Nançay radio telescope (NRT) in the years 2000-2007.
Methods: This observational program was part of a larger project aimed at collecting an exhaustive and magnitude-complete HI extragalactic catalog for Tully-Fisher applications. Through five massive data releases, the KLUN series has collected a homogeneous sample of 4876 HI-spectra of spiral galaxies, complete down to a flux of 5 Jy km s-1 and with declination δ > -40°.
Results: We publish here the last release of the KLUN HI observational program, corresponding to the faint end of the survey, with HI masses ranging from 5 × 108 to 5 × 1010 solar masses. The size of this final sample is comparable to the catalogs based on the Arecibo and Parkes radio telescope campaigns, and it allows general HI mass distribution studies from a set of homogeneous radio measurements.
Astronomy and Astrophysics
- Pub Date:
- March 2017
- galaxies: kinematics and dynamics;
- galaxies: luminosity function;
- mass function;
- radio lines: galaxies;
- astronomical databases: miscellaneous;
- Astrophysics - Astrophysics of Galaxies
- 34 pages, 6 PNG figures, 25 pdf figures in appendix, accepted for publication in Astronomy &