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Correlation of high galactic latitude HI and FIR emission and warm dust in the neutral interstellar medium

  • F. Boulanger
  • B. Baud
  • G. D. van Albada
Part I: Nearby Molecular Clouds as Part of Larger Structure
Part of the Lecture Notes in Physics book series (LNP, volume 237)

Abstract

A comparative study of HI and IRAS maps of a large field at high galactic latitude is presented. The galactic infra-red emission is shown to be well correlated with the HI distribution. A quantitative relation between HI column densities and long-wavelengths IRAS fluxes is derived.

The infra-red spectrum of one diffuse HI cloud, from 12 to 100 μm is presented. Its emission in the mid infra-red (12 and 25 um) is several order of magnitudes larger than what is predicted by standard dust models. The power radiated at 12 μm represents 25% of the 100 μm emission. The spectrum presents a minimum at 25 um. The color temperature derived from the 12 and 25 pm fluxes is 320K.

Keywords

Column Density High Galactic Latitude Galactic Component Galactic Pole Warm Dust 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • F. Boulanger
    • 1
  • B. Baud
    • 1
  • G. D. van Albada
    • 1
  1. 1.Groningen Space Research DepartmentAV GroningenNetherlands

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