Supernovae pp 112-114 | Cite as

Direct Observation of 56Co Decay in Supernova 1987

  • W. Peter S. Miekle
  • Gian-F. Varani
  • Jason Spyromilio
  • David A. Allen
Conference paper
Part of the Santa Cruz Summer Workshops in Astronomy and Astrophysics book series (SANTA CRUZ)


A promising method for reducing the effects of temperature sensitivity and so allowing reliable abundance estimates from spectroscopy, is to consider the intensity ratios of different species. We have examined the intensity ratio of [CoII] 1.547 µm to [FeII] 1.533 µm for the period 255 to 574 days (Fig. 1) (VARANI et al in preparation). Although the two lines are somewhat blended, inspection of Fig. 1 clearly shows that the [CoII] line steadily declined relative to the [FeII] line.


Intensity Ratio Direct Observation Promising Method Temperature Sensitivity Atomic Data 
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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  1. 1.
    D.G. Hummer k P.J. Storey: MNRAS, 224, 801 (1987)ADSGoogle Scholar
  2. 2.
    H. Nussbaumer k P.J. Storey: Astr. Ap., 193, 327 (1988a)ADSGoogle Scholar
  3. 3.
    H. Nussbaumer & P.J. Storey: Astr. Ap., 200, L25 (1988b)ADSGoogle Scholar
  4. 4.
    D.K. Aitken et al: MNRAS, 235, 19P (1988)Google Scholar
  5. 5.
    S.H. Moseley, E. Dwek, W. Glaccum, J.R. Graham, R.F. Loewenstein k R.F. Silverberg: Ap.J. submitted (1989)Google Scholar
  6. 6.
    S.E. Woosley, P.A. Pinto k T.A. Weaver: Proc. astr. Soc. Aust., 7, 355 (1988)ADSGoogle Scholar
  7. 7.
    M. Hashimoto, K. Nomoto k T. Shigeyama: Astr. Ap., 210, L5, (1989)ADSGoogle Scholar
  8. 8.
    J. Spyromilio, W.P.S. Meikle & D.A. Allen: MNRAS (in press).Google Scholar

Copyright information

© Springer-Verlag New York, Inc. 1991

Authors and Affiliations

  • W. Peter S. Miekle
  • Gian-F. Varani
  • Jason Spyromilio
  • David A. Allen

There are no affiliations available

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