Early-type galaxies in isolation

an HI perspective with ATLAS3D

P. Serra*, R. Morganti, T. A. Oosterloo, K. Alatalo, L. Blitz, M. Bois, R. C. E. van den Bosch, F. Bournaud, M. Bureau, M. Cappellari, P. Duc, E. Emsellem, S. Khochfar, D. Krajnovic, H. Kuntschner, P. Y. Lablanche, R. M. McDermid, T. Naab, M. Sarzi, G. van de Ven & 2 others A. Weijmans, P. T. Zeeuw

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

We present preliminary results of our H I WSRT observations of early-type galaxies in the ATLAS(3D) sample. We discuss the dependence of H I properties on environment. We detect H I in about half of the galaxies outside the Virgo cluster. The H I morphology/kinematics changes 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.

Original languageEnglish
Title of host publicationGalaxies in isolation
Subtitle of host publicationexploring nature versus nurture
EditorsL VerdesMontenegro, A DelOlmo, J Sulentic
Place of PublicationSan Francisco
PublisherASTRONOMICAL SOC PACIFIC
Pages49-52
Number of pages4
ISBN (Print)9781583817223
Publication statusPublished - 2010
EventConference on Galaxies in Isolation: Exploring Nature Versus Nurture - Granada, Spain
Duration: 12 May 200915 May 2009

Publication series

NameAstronomical Society of the Pacific Conference Series
PublisherASTRONOMICAL SOC PACIFIC
Volume421

Conference

ConferenceConference on Galaxies in Isolation: Exploring Nature Versus Nurture
CountrySpain
CityGranada
Period12/05/0915/05/09

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