Southern IRDCs seen with Spitzer/MIPS

H. Linz, Ra Klein, L. Looney, Th Henning, B. Stecklum, L. Å Nyman

Research output: Contribution to journalArticlepeer-review


Infrared dark clouds (IRDCs) are generally assumed to be a promising hunting ground for tracing very early stages of massive star formation. Observations with Spitzer are a viable tool to probe their interiors that are still dominated by strong dust extinction even at 8 m. With Spitzer/MIPS, we have observed several IRDCs at 24 and 70 micron. We generally find weak 24 micron sources within the IRDCs. However, at 70 micron these sources remain weak and thus indicate lower luminosities at the current state of evolution. Indications for internal substructures exist, separating regions with compact IR sources from even more dark regions.

Original languageEnglish (US)
Pages (from-to)440
Number of pages1
JournalProceedings of the International Astronomical Union
Issue numberS237
StatePublished - Aug 2006


  • ISM: individual (G316.719+0.073)
  • Infrared: ISM
  • Stars: formation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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