Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...253..575m&link_type=abstract
Astrophysical Journal, Part 1, vol. 253, Feb. 15, 1982, p. 575-579. Research supported by the Natural Sciences and Engineering
Astronomy and Astrophysics
Astrophysics
78
Cepheid Variables, Interstellar Extinction, Magellanic Clouds, Periodic Variations, Stellar Luminosity, Stellar Spectrophotometry, Stellar Oscillations, Ubv Spectra, Visible Spectrum
Scientific paper
Period, amplitude and the Wesenheit function are used to probe the intrinsic calibration of the period-luminosity relation for Cepheids with photoelectric B, V, photometry in the LMC. The relations are inverted to determine reddenings to the individual Cepheids, confirming earlier indications that detectable absorption exists within the LMC itself, and that longer-period Cepheids are systematically more heavily obscured. Amplitude is shown to vary systematically across the instability strip such that at all periods amplitude increases toward the cool edge.
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