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Observations reveal electron temperature estimates in NGC 1052, suggesting shock-wave heating implications.
Image-dissector scanner observations of the emission-line spectrum of NGC 1052 are discussed. The scan of the elliptical galaxy NGC 584 is used to remove the integrated stellar absorption-line features from the spectrum of NGC 1052. The O iii lines indicate Tapprox. =33,000 K. The observed line intensities are consistent with shock-wave heating models by Cox. (AIP)
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Koski et al. (1976) studied this question.
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