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

Gilles Theureau; N. Coudreau; N. Hallet; M Hanski; M Poulain

doi:10.1051/0004-6361/201629813

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

Gilles Theureau ^{1, 2, 3} N. Coudreau ² N. Hallet ² M Hanski ^{4, 3} M Poulain ³

1 USN - Unité Scientifique de la Station de Nançay

2 LUTH - Laboratoire Univers et Théories

3 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace

4 Tuorla Observatory

Abstract : 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 10 8 to 5 10 10 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.

Keywords : Astronomical data bases: miscellaneous -Surveys - Radio lines: galaxies

Document type :

Journal articles

Domain :

Sciences of the Universe [physics] / Astrophysics [astro-ph] / Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]

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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

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