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A new distance scale of planetary nebulae

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Abstract

A new scale of distances to planetary nebulae is proposed. This scale is free of the common a priori assumptions about the evolution of the nebulae and exciting stars. The recently found regression relationship between radius and temperature of the central star is employed. As the initial data for distance finding, we use the radio flux density of the nebulae and the stellar magnitude of the nucleus, or one of these parameters and the central star temperature. The distances to 75 planetary nebulae have been calculated, and their linear dimensions and hydrogen atom concentrations have been determined. It is found that the ionized masses of the planetary nebulae range from 10−3 M⊙ to 1.419M⊙.

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Authors
  1. O. I. Sharova
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Radiophysical Research Institute, Nizhny Novgorod. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 38, No. 6, pp. 522–542, June, 1995.

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Sharova, O.I. A new distance scale of planetary nebulae. Radiophys Quantum Electron 38, 344–358 (1995). https://doi.org/10.1007/BF01037767

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  • DOI: https://doi.org/10.1007/BF01037767

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