A thin shell of ionized gas as the explanation for infrared excess among classical Cepheids

V. Hocdé; N. Nardetto; E. Lagadec; G. Niccolini; A. Domiciano de Souza; A. Mérand; P. Kervella; A. Gallenne; M. Marengo; B. Trahin; W. Gieren; G. Pietrzyński; S. Borgniet; L. Breuval; B. Javanmardi

doi:10.1051/0004-6361/201935848

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Volume 633 (January 2020)

A&A, 633 (2020) A47

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Fig. 10

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Bound-free and free–free absorption coefficient κ_λ computed for V Cen from 0.1 to 30 μm. Bound-free absorption is characterized by saw teeth shapes which are sharper for shorter wavelength. Free–free absorption dominates wavelength above 1 μm.

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