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High Angular Resolution Observations of Her 36

  • Conference paper
Very High Angular Resolution Imaging

Part of the book series: International Astronomical Union / Union Astronomique Internationale ((IAUS,volume 158))

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Abstract

The star Herschel 36 (Her 36) which ionizes most of the Hourglass nebula has been observed during a lunar occultation as well as by speckle interferometry in the near infrared (NIR). From the lunar occultation data the strip brightness profile has been extracted which shows that in the L’ band Her 36 is extended with a FWHM of 0.45”. Subsequent speckle interferometry revealed 11 sources in a 6”x 6” area at a level of 0.15” resolution. From the comparison of the brightness profile obtained by the occultation and the strip brightness profile synthesized from the speckle image, we conclude that Her 36 is surrounded by a very young infrared cluster.

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Based on observations collected at the European Southern Observatory, La Silla,Chile.

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References

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Author information

Authors and Affiliations

  1. MPG working group “Dust in star-forming regions”, Jena, Germany

    B. Stecklum

  2. University of Wyoming, Laramie, USA

    R. R. Howell

  3. Max Planck Institute for Extraterrestrial Physics, Garching, Germany

    A. Eckart

  4. Max Planck Institute for Astronomy, Heidelberg, Germany

    A. Richichi

Authors
  1. B. Stecklum
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  2. R. R. Howell
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  3. A. Eckart
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  4. A. Richichi
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Editor information

Editors and Affiliations

  1. School of Physics, University of Sydney, New South Wales, Australia

    J. G. Robertson  & W. J. Tango  & 

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© 1994 Springer Science+Business Media Dordrecht

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Stecklum, B., Howell, R.R., Eckart, A., Richichi, A. (1994). High Angular Resolution Observations of Her 36. In: Robertson, J.G., Tango, W.J. (eds) Very High Angular Resolution Imaging. International Astronomical Union / Union Astronomique Internationale, vol 158. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0880-5_68

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  • DOI: https://doi.org/10.1007/978-94-011-0880-5_68

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-7923-2633-5

  • Online ISBN: 978-94-011-0880-5

  • eBook Packages: Springer Book Archive

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