Galaxy interactions: The HI signature

R Sancisi*

*Corresponding author for this work

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

Abstract

HI observations are an excellent tool for investigating tidal interactions. Ongoing major and minor interactions which can lead to traumatic mergers or to accretion and the triggering of star formation, show distinct HI signatures. Interactions and mergers in the recent past can also be recognized in the HI structure and kinematics. Recent 21cm line surveys of large samples of galaxies indicate that at least one out of every four galaxies shows signs of a present interaction or merger/accretion events in the recent past.

Original languageEnglish
Title of host publicationGALAXY INTERACTIONS AT LOW AND HIGH REDSHIFT
EditorsJE Barnes, DB Sanders
Place of PublicationDORDRECHT
PublisherKluwer Academic Publishers
Pages71-80
Number of pages10
ISBN (Print)0-7923-5832-5
Publication statusPublished - 1999
Event186th Symposium of the International-Astronomical-Union on Galaxy Interaction at Low and high Redshifts - , Japan
Duration: 26-Aug-199730-Aug-1997

Publication series

NameIAU SYMPOSIA
PublisherKLUWER ACADEMIC PUBL
ISSN (Print)0074-1809

Other

Other186th Symposium of the International-Astronomical-Union on Galaxy Interaction at Low and high Redshifts
CountryJapan
Period26/08/199730/08/1997

Keywords

  • NEUTRAL HYDROGEN OBSERVATIONS
  • ATOMIC-HYDROGEN
  • SPIRAL GALAXY
  • VLA OBSERVATIONS
  • SEYFERT-GALAXY
  • GAS
  • MOTIONS
  • SHELLS
  • DISK

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