An H I view of the on-going assembly of early-type galaxies: present and future observations
| Autor: | Paolo Serra, Raffaella Morganti, Tom Oosterloo, Katey Alatalo, Leo Blitz, Maxime Bois, Remco van den Bosch, Frederic Bournaud, Martin Bureau, Michele Cappellary, Roger Davies, Tim Davis, Pierre-Alain Duc, Eric Emsellem, Jesus Falcon-Barroso, Sadegh Khochfar, Davor Krajnovic, Harald Kuntschner, Pierre-Yves Lablanche, Richard McDermid, Thorsten Naab, M. Sarzi, Nic Scott, Glenn van de Ven, Anne-Marie Weijmans, Lisa Young, Tim de Zeeuw |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Scopus-Elsevier NASA Astrophysics Data System |
| DOI: | 10.22323/1.089.0056 |
| Popis: | We present a preliminary analysis of the H I properties of early-type galaxies in the ATLAS 3D sample. Using WSRT data for 100 galaxies outside the Virgo cluster and data from the Alfalfa project for galaxies inside Virgo, we discuss the dependence of H I properties on environment. We detect H I in about half of the galaxies outside Virgo. For these systems, the H I morphology and kinematics change as a function of environment, going from regular, rotating systems around “isolated” galaxies to progressively more disturbed structures for galaxies with neighbours or in groups. In denser environment, inside Virgo, nearly none of the galaxies contains H I. We discuss future work in this field which will be enabled by next-generation, pre-SKA radio instruments. We present a simulated Apertif H I observation of an ATLAS 3D early-type galaxy |
| Databáze: | OpenAIRE |
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