The environment of nearby blue compact dwarf galaxies

Angel Lopez Sanchez, Bärbel S. Koribalski, Janine Van Eymeren, C. Esteban, A. Popping, J. Hibbard

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

We are obtaining deep multiwavelength data of a sample of nearby blue compact dwarf galaxies (BCDGs) combining broad-band optical/NIR and H alpha photometry, optical spectroscopy and 21-cm radio observations. Here we present H I results obtained with the Australia Telescope Compact Array for some BCDGs, all showing evident interaction features in their neutral gas component despite the environment in which they reside. Our analysis strongly suggests that interactions with or between low-luminosity dwarf galaxies or H I clouds are the main trigger mechanism of the star-forming bursts in BCDGs; however these dwarf objects are only detected when deep optical images and complementary H I observations are performed. Are therefore BCDGs real isolated systems?

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, CA
PublisherASTRONOMICAL SOC PACIFIC
Pages1-4
Number of pages4
ISBN (Print)9781583817223
Publication statusPublished - 2010
Externally publishedYes
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

Keywords

  • WOLF-RAYET GALAXIES

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