Figure 1 from The Araucaria Project: Accurate Determination of the Dynamical Mass of the Classical Cepheid in the Eclipsing System OGLE-LMC-CEP-1812

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The Araucaria Project: Accurate Determination of the Dynamical Mass of the Classical Cepheid in the Eclipsing System OGLE-LMC-CEP-1812

Authors: Grzegorz Pietrzyński, Ian B. Thompson, Dariusz Graczyk, Wolfgang Gieren, Bogumił Pilecki, Andrzej Udalski, Igor Soszynski, Giuseppe Bono, Piotr Konorski, Nicolas Nardetto, and Jesper Storm

Pietrzyński et al. 2011 The Astrophysical Journal Letters 742 L20.

Provider: AAS Journals

Caption: Figure 1.

Disentangled spectroscopic orbit of the CEP-1812 system, folded on the orbital period of 551.8 days (upper panel), and the pulsational radial velocity curve of the Cepheid, folded on its pulsation period of 1.31 days (lower panel). The Cepheid is the higher-mass star in the system (filled circles in the upper panel). The measured (constant) velocities of the faint third star in the light are not shown for clarity.

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