 |
Université d'Orléans |  |
|
Université d'Orléans | |
| HAL : hal-00114730, version 1 |
| arXiv : astro-ph/0611626 |
| Fiche détaillée |  Récupérer au format |
 |
|
|
| Kinematics of the Local Universe XIII. 21-cm line measurements of 452 galaxies with the Nançay radiotelescope, JHK Tully-Fisher relation and preliminary maps of the peculiar velocity field |
|
|
| Gilles Theureau 1, 2Mikko Hanski 1, 3 |
|
|
| (17/11/2006) |
|
|
|
| This paper presents 452 new 21-cm neutral hydrogen line measurements carried out with the FORT receiver of the meridian transit Nançay radiotelescope (NRT) in the period April 2003 -- March 2005. This observational programme is part of a larger project aiming at collecting an exhaustive and magnitude-complete HI extragalactic catalogue for Tully-Fisher applications (the so-called KLUN project, for Kinematics of the Local Universe studies, end in 2008). The whole on-line HI archive of the NRT contains today reduced HI-profiles for ~4500 spiral galaxies of declination delta > -40° (http://klun.obs-nancay.fr). As an example of application, we use direct Tully-Fisher relation in three (JHK) bands in deriving distances to a large catalog of 3126 spiral galaxies distributed through the whole sky and sampling well the radial velocity range between 0 and 8000~km/s. Thanks to an iterative method accounting for selection bias and smoothing effects, we show as a preliminary output a detailed and original map of the velocity field in the Local Universe. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | Laboratoire de physique et chimie de l'environnement (LPCE) |
|
|
|
CNRS : UMR6115 – INSU – Université d'Orléans |
|
|
| 2 : | Galaxies, Etoiles, Physique, Instrumentation (GEPI) |
|
|
|
CNRS : UMR8111 – INSU – Observatoire de Paris – Université Paris VII - Paris Diderot |
|
|
| 3 : | Tuorla Observatory |
|
|
|
University of Turku |
|
|
|
|
|
|
|
|
|
| Domaine | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique |
|
|
| Astronomical data bases: miscellaneous : Surveys : Galaxies/kinematics and dynamics : Radio lines/galaxies |
|
|
|
| Liste des fichiers attachés à ce document : | ||||||||||
|
||||||||||
|
|
|
| hal-00114730, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00114730 | |
| oai:hal.archives-ouvertes.fr:hal-00114730 | |
| Contributeur : Gilles Theureau | |
| Soumis le : Vendredi 17 Novembre 2006, 14:45:53 | |
| Dernière modification le : Lundi 20 Novembre 2006, 15:07:20 | |
