Molecules and dust in galaxy nuclei: A few ideas for ALMA

Research output: Contribution to journalConference articlepeer-review


For current millimeter interferometers, sensitivity considerations typically limit high-resolution mapping of galactic nuclei to transitions of the dominant CO isotopomer. Once ALMA arrives, CO will still be useful as a probe of the nuclear geometry, kinematics, and heating on the smallest possible scales. However, high-resolution observations of less abundant molecular species, tracing a wider range of physical conditions, should become nearly as routine. I discuss two of these probes (SiO and HCN) and explore what they may be able to tell us about the properties of dust and molecular gas in galactic nuclei.

Original languageEnglish (US)
Pages (from-to)129-133
Number of pages5
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number577
StatePublished - 2005
Externally publishedYes
EventThe Dusty and Molecular Universe - A Prelude to Herschel and ALMA - Paris, France
Duration: Oct 27 2004Oct 29 2004

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


  • Galaxies: ISM
  • Galaxies: nuclei
  • Radio lines: galaxies


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