Advertisement

The Relationship Between Near IR Extinction and CO Emission

  • Michael W. Regan
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 209)

Abstract

The relationship between dust optical depth and integrated CO emission is explored for a sample of four galaxies. The dust optical depth is determined by using a radiative transfer model to match the observed optical and infrared colors at different positions in each galaxy. With assumptions of dense dust fractions and a constant dust to gas ratio, the comparision of the ratio of dust optical depth to integrated CO emission can be used to look at the variation in X, the conversion factor between integrated CO emission and H2 mass.

Keywords

Star Formation Radiative Transfer Model External Galaxy Dust Lane Infrared Color 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Digel, S, Bally, J. and Thaddeus, P (1990), ApJ, 357, L29CrossRefADSGoogle Scholar
  2. Elmegreen, D. (1980), APJS, 43, 37CrossRefADSGoogle Scholar
  3. Heifer, T.T. (1995), PhD Thesis, University of MarylandGoogle Scholar
  4. Heifer, T.T. and Blitz, L. (1995), ApJ, 450, 90CrossRefADSGoogle Scholar
  5. Rix, H.W. and Rieke, M.J. (1993), ApJ, 418, 123CrossRefADSGoogle Scholar
  6. Regan, M.W., Vogel, S.N. and Teuben, RJ. (1995), ApJ, 449, 576CrossRefADSGoogle Scholar
  7. Regan, M.W., Teuben, RJ., Vogel, S.N. and van der Hulst (1996), in prepGoogle Scholar
  8. Sodroski et al (1995), ApJ, 452, 262CrossRefADSGoogle Scholar
  9. Wilson, C.D. (1995), ApJ, 448, L97CrossRefADSGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Michael W. Regan
    • 1
  1. 1.Department of AstronomyUniversity of MarylandCollege ParkUSA

Personalised recommendations