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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5139
Title: Radiation Flux in Sunspot Umbrae
Authors: Ramanathan, A. S
Keywords: Sunspot Umbrae
Issue Date: 1954
Publisher: Springer-Verlag
Citation: Zeitschrift für Astrophysik, Vol. 34, pp. 169 - 172
Abstract: The ratio of umbral intensity to photospheric intensity as a function of wavelength has been studied in the case of four fairly large spots in the wavelength range 4000A - 6500A. The relative spectrophotometric gradient has been evaluated for each spot.
URI: http://hdl.handle.net/2248/5139
Appears in Collections:IIAP Publications

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