Abstract
Two recent articles1,2 have shown that the X-ray flux from M87 is variable over time scales of less than 1 yr. This letter reports detection of variations in the radio flux density of a compact component in the nucleus of M87, over similar time scales.
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References
Byram, E. G., Chubb, T. A., and Friedman, H., Nature, 229, 544 (1971).
Janes, A. F., Pounds, K. A., Ricketts, M. J., and Rees, M. J., Nature, 230, 188 (1971).
Graham, I., Mon. Not. Roy. Astron. Soc., 149, 319 (1970).
Griffin, R. F., Astron. J., 68, 421 (1963).
Burbidge, G. R., Astrophys. J., 159, L105 (1970).
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GRAHAM, I. Variations in the 5 GHz Flux Density of the Nucleus of M87. Nature 231, 253–254 (1971). https://doi.org/10.1038/231253a0
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DOI: https://doi.org/10.1038/231253a0
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