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  • © 2015

Atomic Diffusion in Stars

  • Gives an overview of atomic diffusion, a fundamental physical process, as applied to all types of stars
  • Discusses the interaction of diffusion with turbulence, mass loss and magnetic fields throughout stellar evolution, in both interiors and atmospheres
  • Provides a unique description of the role of radiative accelerations throughout stellar evolution

Part of the book series: Astronomy and Astrophysics Library (AAL)

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Table of contents (15 chapters)

  1. Front Matter

    Pages i-xv
  2. Observational Motivation and Brief History

    • Georges Michaud, Georges Alecian, Jacques Richer
    Pages 1-10
  3. Physics of Transport Processes

    1. Front Matter

      Pages 11-12
    2. Atomic Transport: Diffusion Equations

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 13-30
    3. Radiative Accelerations

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 31-56
    4. Transport Coefficients

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 57-78
    5. Diffusion in Magnetic Fields

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 79-89
    6. Light Induced Drift

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 91-95
    7. Macroscopic Transport Processes

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 97-128
  4. Abundance Anomalies in Stellar Evolution

    1. Front Matter

      Pages 129-130
    2. Upper Main Sequence Stars of Pop I

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 131-156
    3. Lower Main Sequence Stars of Pop I

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 157-187
    4. Population II Dwarfs

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 189-209
    5. Giants

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 211-216
    6. Horizontal-Branch Stars

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 217-233
    7. White Dwarfs

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 235-258
    8. Neutron Stars

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 259-270
    9. Conclusion

      • Georges Michaud, Georges Alecian, Jacques Richer
      Pages 271-273
  5. Back Matter

    Pages 275-327

About this book

The authors give an overview of atomic diffusion as applied to all types of stars, showing where it plays an essential role and how it can be implemented in modelling. Part I describes the tools that are required to include atomic diffusion in models of stellar interiors and atmospheres. An important role is played by the gradient of partial radiative pressure, or radiative acceleration, which is usually neglected in stellar evolution. In Part II, the authors systematically review the contribution of atomic diffusion to each evolutionary step. The dominant effects of atomic diffusion are accompanied by more subtle effects on a large number of structural properties throughout evolution. The goal of this book is to provide the means for the astrophysicist or graduate student to evaluate the importance of atomic diffusion in a given star. A fundamental physical process, atomic diffusion can significantly affect the superficial abundances of stars and/or their evolution. This guide includes all the information needed to take proper account of atomic diffusion's impact.

Authors and Affiliations

  • Département de physique, Université de Montréal, Montréal, Canada

    Georges Michaud, Jacques Richer

  • Laboratoire Univers et Théorie, CNRS-Observatoire de Paris, Meudon, France

    Georges Alecian

About the authors

Prof. Georges Michaud has been a Professeur Émérite at the Université de Montréal since 2005. He has worked in their physics department as a professor since 1969, after obtaining his PhD in astronomy from the California Institute of Technology. He is the recipient of the 2006 C.S. Beals Award from the Canadian Astronomical Society and has been a member of the Royal Society of Canada since 1992. He was awarded the  Steacie Prize of the NRC of Canada in 1980 and the Médaille Janssen  of the Académie des sciences de Paris in 1982.

Dr. Georges Alecian is a CNRS Research Director Emeritus at CNRS-Observatoire de Paris (LUTH). His main fields of research are stellar physics, theory and modeling of transport processes of elements and atomic diffusion. He was director of Laboratory/Department (LAEC/DAEC, CNRS-Observatoire de Paris, Université Paris-Diderot) from 1996 to 2001, and he has been member of the CoRoT space mission scientific council since 1998.  Since 2012, he is foreign member of the National Academy of Sciences of the Republic of Armenia (NAS RA).

Dr. Jacques Richer obtained his PhD in astrophysics from the Université de Montréal in 1993, and has been a research assistant in the physics department’s astronomy group since then. He has also been a scientific computing analyst and consultant with various Québec academic organizations (CERCA, RQCHP, and finally, Calcul Québec) from 1997 to 2015.

His main research activities include numerical simulation of element diffusion inside evolving stars, with emphasis on the role of radiative forces, turbulence mixing and stellar winds.

Bibliographic Information

Buy it now

Buying options

eBook USD 69.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 89.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 89.99
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