Skip to main content

The Theory of Cosmic Grains

  • Book
  • © 1991

Overview

Part of the book series: Astrophysics and Space Science Library (ASSL, volume 168)

This is a preview of subscription content, log in via an institution to check access.

Access this book

eBook USD 129.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access

Licence this eBook for your library

Institutional subscriptions

Table of contents (10 chapters)

Keywords

About this book

Light scattering and absorption by small homogeneous particles can be worked-out exactly for spheres and infinite cylinders. Homogeneous particles of irregular shapes, when averaged with respect to rotation, have effects that can in general be well-approximated by reference to results for these two idealised cases. Likewise, small inhomogeneous particles have effects similar to homogeneous particles of the same average refractive index. Thus most problems can be solved to a satisfactory approximation by reference to the exact solutions for spheres and cylinders, which are fully stated here in the early part of the book. The sum of scattering and absorption, the extinction, is too large to be explained by inorganic materials, provided element abundances in the interstellar medium are not appreciably greater than solar, H 0 and NH3 being essentially excluded in the 2 general medium, otherwise very strong absorptions near 3p,m would be observed which they are not. A well-marked extinction maximum in the ultraviolet near 2200A has also not been explained satisfactorily by inorganic materials. Accurately formed graphite spheres with radii close to O.02p,m could conceivably provide an explanation of this ultraviolet feature but no convincing laboratory preparation of such spheres has ever been achieved.

Authors and Affiliations

  • Bournemouth, UK

    F. Hoyle

  • School of Mathematics, University of Wales, Cardiff, UK

    N. C. Wickramasinghe

Bibliographic Information

  • Book Title: The Theory of Cosmic Grains

  • Authors: F. Hoyle, N. C. Wickramasinghe

  • Series Title: Astrophysics and Space Science Library

  • DOI: https://doi.org/10.1007/978-94-011-3402-6

  • Publisher: Springer Dordrecht

  • eBook Packages: Springer Book Archive

  • Copyright Information: Springer Science+Business Media Dordrecht 1991

  • Hardcover ISBN: 978-0-7923-1189-8Published: 31 October 1991

  • Softcover ISBN: 978-94-010-5505-5Published: 24 September 2012

  • eBook ISBN: 978-94-011-3402-6Published: 06 December 2012

  • Series ISSN: 0067-0057

  • Series E-ISSN: 2214-7985

  • Edition Number: 1

  • Number of Pages: IX, 307

  • Topics: Astronomy, Observations and Techniques

Publish with us