Skip to main content
SpringerLink
Log in

The possibility of resonance-enhanced two-photon ionization of Ne and Ar atoms in astrophysical plasmas

  • Published:
Astronomy Reports Aims and scope Submit manuscript

Abstract

We consider possible schemes for the resonance-enhanced two-photon ionization (RETPI) of Ne and Ar atoms under the action of bichromatic radiation of intense resonance lines of HI, HeI, and HeII in a radiation-rich astrophysical plasma. The ionization rate is comparable to or exceeds the recombination rate in rarified astrophysical plasma, which leads to the accumulation of singly ionized ions with a subsequent transition to the higher ionization state via RETPI. We consider the RETPI reaction chains NeI → ... → NeV and ArI → ... → ArVI.

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

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. K. Davidson and R. M. Humphreys, Ann. Rev. Astron. Astrophys. 35, 1 (1997).

    Article  ADS  Google Scholar 

  2. T. Gull, private communication.

  3. S. Johansson and V. S. Letokhov, Astron. Astrophys. 378, 266 (2001).

    Article  ADS  Google Scholar 

  4. V. V. Klimov, S. Johansson, and V. S. Letokhov, Astron. Astrophys. 385, 313 (2002).

    Article  ADS  Google Scholar 

  5. S. R. Pottasch, Planetary Nebulae (Reidel, Dordrecht, 1984).

    Google Scholar 

  6. D. E. Osterbrock, Astrophysics of Gaseous Nebulae and Active Galactic Nuclei (Univ. Sci. Books, Sausalito, Ca., 1989).

    Google Scholar 

  7. I. Robson, Active Galactic Nuclei (Wiley, Chichester, 1986).

    Google Scholar 

  8. A. V. Filippenko, Astrophys. J. 289, 475 (1985).

    Article  ADS  Google Scholar 

  9. V. S. Letokhov, Laser Photoionization Spectroscopy (Nauka, Moscow, 1987; Academic, Orlando, 1987).

    Google Scholar 

  10. N. B. Delone, Interaction of Laser Radiation with Matter (Nauka, Moscow, 1989) [in Russian].

    Google Scholar 

  11. S. Johansson and V. S. Letokhov, Science 291, 625 (2001).

    Article  ADS  Google Scholar 

  12. S. Johansson and V. S. Letokhov, Pis'ma Zh. Éksp. Teor. Fiz. 73, 135 (2001) [JETP Lett. 73, 118 (2001)].

    Google Scholar 

  13. S. Johansson and V. S. Letokhov, Astron. Astrophys. 375, 319 (2001); Astron. Astrophys. 395, 345 (2002).

    Article  ADS  Google Scholar 

  14. S. Bashkin and J. O. Stoner, Jr., Atomic Energy Levels and Grotrrian Diagrams (North-Holland, Amsterdam, 1975), Vol. 1.

    Google Scholar 

  15. W. Persson, Phys. Scripta 3, 133 (1971).

    ADS  Google Scholar 

  16. W. Persson, C.-G. Wahlström, L. Jönsson, and H. O. DiRocco, Phys. Rev. A 43, 4791 (1991).

    Article  ADS  Google Scholar 

  17. A. E. Livingston, R. Buttner, A. S. Zacarias, et al., J. Opt. Soc. Am. B 14, 522 (1997).

    ADS  Google Scholar 

  18. A. E. Kramida, T. Bastin, E. Bimont, et al., Eur. Phys J. D 7, 525 (1999).

    Article  ADS  Google Scholar 

  19. G. Norlin, Phys. Scripta 8, 249 (1973).

    ADS  Google Scholar 

  20. J. E. Hansen and W. Persson, J. Phys. B 20, 693 (1987).

    ADS  Google Scholar 

  21. F. Bredice, M. Gallardo, and J. G. Reyna Almandos, Phys. Scripta 51, 446 (1995).

    ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Lund Observatory, Lund, Sweden

    S. Johansson

  2. Institute of Spectroscopy, Troitsk, Russia

    V. S. Letokhov

Authors
  1. S. Johansson
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. S. Letokhov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

__________

Translated from Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 81, No. 5, 2004, pp. 438–446.

Original Russian Text Copyright © 2004 by Johansson, Letokhov.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Johansson, S., Letokhov, V.S. The possibility of resonance-enhanced two-photon ionization of Ne and Ar atoms in astrophysical plasmas. Astron. Rep. 48, 399–406 (2004). https://doi.org/10.1134/1.1744940

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1134/1.1744940

Keywords

Search

Navigation