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Low frequency observations of emission nebulae and their electron temperatures

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Abstract

Radio observations of emission nebulae at 74 MHz are reported. Flux densities for NGC 1499, IC 405, IC 410, NGC 2024, NGC 2175, NGC 2237-46, and NGC 6820 are given. Most of the observed nebulae are found to be optically thick at 74 MHz. Combining the low frequency results with previously measured flux densities at high frequencies, it is shown that it is possible to derive the mean electron temperatures of the observed nebulae. The results show that the range in temperature is from 3200 to 6800 K.

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References

  • Altenhoff, W.: 1967 (private communication).

  • Bennett, A. S. 1962,Monthly Notices Roy. Astron. Soc. 68, 163.

    Google Scholar 

  • Bottinelli, L. andGougenheim, L.: 1964,Ann. Astrophys. 27, 685.

    Google Scholar 

  • Conway, R. G., Kellermann, K. I., andLong, R. G.: 1963,Monthly Notices Roy. Astron. Soc. 125, 261.

    Google Scholar 

  • Dieter, N. H.: 1967,Astrophys. J. 150, 455.

    Google Scholar 

  • Field, C.: 1967,Monthly Notices Roy. Astron. Soc. 137, 419.

    Google Scholar 

  • Goldberg, L.: 1966,Astrophys. J. 144, 1225.

    Google Scholar 

  • Hjellming, R. M.: 1966,Astrophys. J. 143, 420.

    Google Scholar 

  • Howard, W. E. III, Dennis, T. R., Maran S. P., andAller, J. D.: 1965,Astrophys. Suppl. 10, 33.

    Google Scholar 

  • Kraus, J. D. andKo, H. C.: 1957, Scientific Report No. 1, Radio Obs., Ohio S. Univ., p. 51.

  • Kuzmin, A. D., Levchenko, M. T., Noskova, R. I., andSalomonovich, A. E.: 1960,Soviet Astron. A.J. 4, 909.

    Google Scholar 

  • Lynds, C. R.: 1961,Pub. Nat. Radio Astr. Obs. 1, 43.

    Google Scholar 

  • Medd, W. G.: 1964 (private communication).

  • Menon, T. K.: 1962,Astrophys. J. 135, 394.

    Google Scholar 

  • Mezger, P. G. andEllis, S.: 1968,Astrophys. Letters 1, 159.

    Google Scholar 

  • Mezger, P. G. andHöglund, B.: 1967,Astrophys. J. 147, 490.

    Google Scholar 

  • Oster, L.: 1961,Astrophys. J. 134, 1010.

    Google Scholar 

  • Peimbert, M.: 1967,Astrophys. J. 150, 825.

    Google Scholar 

  • Roger, R. S.: 1968 (in press).

  • Rubin, R. H.: 1968 (preprint).

  • Sofia, S.: 1966 (preprint).

  • Terzian, Y.: 1962,Pub. Nat. Radio Astr. Obs. 1, 205.

    Google Scholar 

  • Terzian, Y.: 1965,Astrophys. J. 142, 135.

    Google Scholar 

  • Terzian, Y., Mezger, P. g., andSchraml, J.: 1968,Astrophys. Letters 1, 153.

    Google Scholar 

  • Wade, C. M.: 1958,Australian J. Phys. 11, 388.

    Google Scholar 

  • Wilson, R. W.: 1963,Astrophys. J. 68, 181.

    Google Scholar 

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  1. Center for Radiophysics and Space Research, Cornell University, Ithaca, N.Y., USA

    Yervant Terzian

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  1. Yervant Terzian
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Terzian, Y. Low frequency observations of emission nebulae and their electron temperatures. Astrophys Space Sci 3, 479–489 (1969). https://doi.org/10.1007/BF00704855

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  • DOI: https://doi.org/10.1007/BF00704855

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