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Classification Spectroscopy of M Dwarfs from 0.6 to 2.4 Microns

  • J. Davy Kirkpatrick
Part of the ESO Astrophysics Symposia book series (ESO)

Abstract

A powerful tool in the study of cool stars and brown dwarfs is broad wavelength spectroscopy. Recently, a spectral sequence was established between 6300 and 9000 Å for dwarfs ranging in type from K5 to M9. With today’s technology, classification spectra can also be obtained with relative ease in the region near peak flux (0.9 – 2.4μm). A re-establishment of spectral types in the infrared will allow very red dwarfs to be classified using shorter integration times at smaller telescopes. In particular, the resulting 0.6 – 2.4 μm spectra will provide important physical information for the latest M dwarfs and for brown dwarf candidates.

Keywords

Spectral Sequence Spectral Type Main Sequence Cool Star Spectral Classification 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Allard, F. 1990, PhD Thesis, Univ. of HeidelbergGoogle Scholar
  2. Allard, F. 1995, this volume, p. 32Google Scholar
  3. Allard, F., Hauschildt, P. H., Miller, S., & Tennyson, J. 1994, ApJ, 426, L39ADSCrossRefGoogle Scholar
  4. Bessell, M. S. 1991, AJ, 101, 662ADSCrossRefGoogle Scholar
  5. Boeshaar, P. C. 1976, PhD Thesis, Ohio State Univ.Google Scholar
  6. Boeshaar, P. C., & Tyson, J. A. 1985, AJ, 90, 817ADSCrossRefGoogle Scholar
  7. Burrows, A., Hubbard, W. B., & Lunine, J. I. 1989, ApJ, 345, 939ADSCrossRefGoogle Scholar
  8. D’Antona, F., & Mazzitelli, I. 1985, ApJ, 296, 502ADSCrossRefGoogle Scholar
  9. Davidge, T. J., & Boeshaar, P. C. 1993, ApJ, 403, L47ADSCrossRefGoogle Scholar
  10. Henry, T. J., Kirkpatrick, J. D., & Simons, D. A. 1994, AJ, 108, 1437ADSCrossRefGoogle Scholar
  11. Henry, T. J., & Mccarthy, D. W., Jr. 1993, AJ, 106, 773ADSCrossRefGoogle Scholar
  12. Herbig, G. H. 1956, PASP, 68, 531ADSCrossRefGoogle Scholar
  13. Johnson, H. L., & Morgan, W. W. 1953, ApJ, 117, 313ADSCrossRefGoogle Scholar
  14. Jones, H. R. A., Longmore, A. J., Jameson, R. F., & Mountain, C. M. 1994, MN- RAS, 267, 413ADSGoogle Scholar
  15. Joy, A. H. 1947, ApJ, 105, 96ADSCrossRefGoogle Scholar
  16. Joy, A. H., & Abt, H. A. 1974, ApJS, 28, 1ADSCrossRefGoogle Scholar
  17. Kirkpatrick, J. D., Henry, T. J., & Mccarthy, D. W., Jr. 1991, ApJS, 77, 417ADSCrossRefGoogle Scholar
  18. Kirkpatrick, J. D., Henry, T. J., & Simons, D. A. 1995, AJ, in press, Feb 1995 issue Google Scholar
  19. Kirkpatrick, J. D., Kelly, D. M., Rieke, G. H., Liebert, J., Allard, F., & Wehrse, R. 1993, ApJ, 402, 643ADSCrossRefGoogle Scholar
  20. Kirkpatrick, J. D., & Mccarthy, D. W., Jr. 1994, AJ, 107, 333ADSCrossRefGoogle Scholar
  21. Kirkpatrick, J. D., McGraw, J. T., Hess, T. R., Liebert, J., & Mccarthy, D. W., Jr. 1994, ApJS, 94, 749ADSCrossRefGoogle Scholar
  22. Kuiper, G. P. 1942, ApJ, 95, 201ADSCrossRefGoogle Scholar
  23. Liebert, J., Boroson, T. A., & Giampapa, M. S. 1984, ApJ, 282, 758ADSCrossRefGoogle Scholar
  24. Liebert, J., & Ferguson, D. H. 1982, MNRAS, 199, 3PGoogle Scholar
  25. Liebert, J., Kron, R. G., & Spinrad, H. 1978, PASP, 90, 718ADSCrossRefGoogle Scholar
  26. Luyten, W. J. 1979a, The LHS Catalogue, Second Edition (Univ. of Minnesota, Minneapolis)Google Scholar
  27. Luyten, W. J. 1979b, NLTT Catalogue, Vol. I-II (Univ. of Minnesota, Minneapolis)Google Scholar
  28. Luyten, W. J. 1980, NLTT catalogue, Vol III-IV (Univ. of Minnesota, Minneapolis)Google Scholar
  29. Morgan, W. W. 1938, ApJ, 87, 589ADSCrossRefGoogle Scholar
  30. Morgan, W. W., & Keenan, P. C. 1973, ARA& A, 11, 29ADSCrossRefGoogle Scholar
  31. Morgan, W. W., Keenan, P. C., & Kellman, E. 1943, An Atlas of Stellar Spectra, (Univ. of Chicago, Chicago)Google Scholar
  32. Probst, R. G., & Liebert, J. 1983, ApJ, 274, 245ADSCrossRefGoogle Scholar
  33. Simons, D. A., Henry, T. J., & Kirkpatrick, J. D. 1993, BAAS, 25, 1318ADSGoogle Scholar
  34. Walker, A. 1980, MNASSA, 39, 96ADSGoogle Scholar
  35. Wing, R. F. 1979, in IAU colloquium 47, Spectral classification of the Future, ed.Google Scholar
  36. M. F. Mccarthy, A. G. D. Philip, & G. V. coyne (Vatican Observatory, Vatican city), 347Google Scholar
  37. Wing, R. F., & Yorka, S. B. 1979, in IAU colloquium 47, Spectral classification of the Future, ed. M. F. Mccarthy, A. G. D. Philip, & G. V. Coyne (Vatican Observatory, Vatican city), 519Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • J. Davy Kirkpatrick
    • 1
  1. 1.McDonald ObservatoryUniversity of TexasAustinUSA

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