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Tiny HI Clouds in the Local ISM

  • Robert Braun
  • Nissim Kanekar
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 327)

Abstract

Very sensitive HI absorption spectra (Δτ ∼ 10-4 over 1 km/s) toward high latitude QSOs have revealed a population of tiny discrete features in the diffuse ISM with peak τ of 0.1 – 2% and core line-widths corresponding to temperatures as low as 20 K. Imaging detections confirm linear dimensions of a few 1000 AU.

Keywords

Dark Matter Column Density Stellar Wind Initial Mass Function Apparent Distance 
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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References

  1. Davis, R. J., Diamond, P. J., Goss, W. M. 1996, MNRAS, 283, 1105ADSGoogle Scholar
  2. Deshpande, A. A. 2000, MNRAS, 543, 227MathSciNetGoogle Scholar
  3. Dieter, N. H., Welch, W. J., Romney, J. D. 1976, ApJ, 206, L113CrossRefADSGoogle Scholar
  4. Faison, M., Goss, W. M., Diamond, P. J., Taylor, G. B. 1998, AJ, 116, 2916CrossRefADSGoogle Scholar
  5. Faison, M., Goss, W. M. 2001, AJ, 121, 2706CrossRefADSGoogle Scholar
  6. Frail, D. A., Weisberg, J. M., Cordes, J. M., Mathers, C. 1994, ApJ, 436, 144CrossRefADSGoogle Scholar
  7. Johnston, S., Koribalski, B., Wison, W., Walker, M.,2003, MNRAS, 341, 941CrossRefADSGoogle Scholar
  8. Kanekar, N., Subrahmanyan, R., Chengalur, C., Safouris, V. 2003, MNRAS, 346, L57CrossRefADSGoogle Scholar
  9. Lauroesch, J. T., Meyer, D. M., Watson, J. K., Blades, J. C. 1998, ApJ, 507, L89CrossRefADSGoogle Scholar
  10. Pfenniger, D., Combes, F. 1994, A&A, 285, 94ADSGoogle Scholar
  11. Stanimirovic, S., Weisberg, J. M., Hedden, A. et al. 2003, ApJ, 598, 23CrossRefADSGoogle Scholar
  12. Watson, J. K., Meyer, D. M. 1996, ApJ, 473, L127CrossRefADSGoogle Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  • Robert Braun
    • 1
  • Nissim Kanekar
    • 2
  1. 1.ASTRONDwingelooThe Netherlands
  2. 2.Kapteyn Inst.GroningenThe Netherlands

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