ISO/SWS Observations of the Extended Atmospheres and their Time Variations

  • Issei Yamamura
Part of the Astrophysics and Space Science Library book series (ASSL, volume 283)


The Infrared Space Observatory (ISO) has greatly extended our scope of evolved stars. Data in the wavelength region inaccessible from the ground unveil new aspects of the objects. Here we review the studies of time variations of molecular bands in the near- and mid-infrared spectra of oxygen-rich stars observed by the Short-Wavelength Spectrometer (SWS). These molecular bands are thought to arise in the extended region of the atmosphere and the inner part of the circumstellar envelope. It is seen that there are two regions in the extended atmosphere; one follows the optical variability and the other does not. We argue that pulsation shocks running through the atmosphere play an essential role on the variations


Stars AGB and post-AGB — Stars atmospheres — Stars late-type -Infrared stars 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Beck, H.K.B., Gail, H.-P., Henkel, R., & Sedlmayr, E. 1992, A&A, 265, 626ADSGoogle Scholar
  2. Bessell, M.S., Scholz, M., & Wood, R.R. 1996, A&A, 307, 481ADSGoogle Scholar
  3. Cami, J., Yamamura, I., de Jong, T., et al. 2000, A&A, 360, 562ADSGoogle Scholar
  4. Decin, L., Waelkens, C., Eriksson, K., et al. 2000, ESA-SP, 456, 289ADSGoogle Scholar
  5. de Graauw, Th., Haser, L.N., & Beintema, D.A., et al. 1996, A&A, 315, L49ADSGoogle Scholar
  6. Duari, D., Cherchneff, I., & Willacy, K. 1999, A&A, 341, L47ADSGoogle Scholar
  7. González-Alfonso, E., & Cernicharo, J. 1999, in ESA SP-427, The Universe as seen by ISO, eds. R. Cox, M.F. Kessler, (Noordwijk), 325Google Scholar
  8. Höfner, S., Jørgensen, U.G., Loidl, R., & Aringer, B. 1998, A&A, 340, 497ADSGoogle Scholar
  9. Höfner, S. 1999, A&A, 346, L9ADSGoogle Scholar
  10. Hron, J., Loidl, R., Höfner, S., et al. 1998, A&A, 335, L69ADSGoogle Scholar
  11. Justtanont, K., Feuchtgruber, H., de Jong, T., et al. 1998, A&A, 330, L17ADSGoogle Scholar
  12. Kessler, M., Steinz, J.A., Anderegg, M.E., et al. 1996, A&A, 315, L27ADSGoogle Scholar
  13. Loidl, R., Höfner, S., Jørgensen, U.G., & Aringer, B. 1999, A&A, 342, 531ADSGoogle Scholar
  14. Matsuura, M., Yamamura, I., Murakami, H., et al. 1999, A&A, 348, 579ADSGoogle Scholar
  15. Matsuura, M., Yamamura, I., Cami, J., et al. 2000, A&A, 383, 972ADSCrossRefGoogle Scholar
  16. Onaka, T., de Jong, T., & Yamamura, I. 2002, A&A, 388, 573ADSCrossRefGoogle Scholar
  17. Ryde, N., Eriksson, K., & Gustafsson, B. 1999, A&A, 341, 579ADSGoogle Scholar
  18. Tsuji, T. 2001, A&A, 376, L1ADSCrossRefGoogle Scholar
  19. Tsuji, T., Ohnaka, K., Aoki, W., & Yamamura, I. 1997, A&A, 320, L1ADSGoogle Scholar
  20. Yamamura, I., de Jong, T., Onaka, T., et al. 1999a, A&A, 341, L9ADSGoogle Scholar
  21. Yamamura, I., de Jong, T., & Cami, J. 1999b, A&A, 348, L55ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Issei Yamamura
    • 1
  1. 1.The Institute of Space and Astronautical ScienceSagamiharaJapan

Personalised recommendations