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The Great Dimming of the Hypergiant Star RW Cephei: CHARA Array Images and Spectral Analysis

  • Authors: Narsireddy Anugu, Fabien Baron, Douglas R. Gies, Cyprien Lanthermann, Gail H. Schaefer, Katherine A. Shepard, Theo ten Brummelaar, John D. Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Claire L. Davies, Jacob Ennis, Tyler Gardner, Aaron Labdon, Rachael M. Roettenbacher, Benjamin R. Setterholm, Wolfgang Vollmann, Costantino Sigismondi

Narsireddy Anugu et al 2023 The Astronomical Journal 166 .

  • Provider: AAS Journals

Caption: Figure 8.

The NIR spectrum of RW Cep near the CO bandhead made during the dimming event (from APO; shown in black) compared to an archival spectrum associated with normal brightness (from the IRTF Spectral Library; shown in dark gray). Both spectra are rebinned to a resolving power of R = 1000 for ease of comparison. The dotted line in the lower panel shows the difference (new minus archival).

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