The Reddening of Red Supergiants: When Smoke Gets In Your Eyes

Abstract

Deriving the physical properties of red supergiants (RSGs) depends upon accurate corrections for reddening by dust. We use our recent modeling of the optical spectra of RSGs to address this topic. We find: (1) Previous broad-band studies have underestimated the correction for extinction in the visible, and hence the luminousities, if derived from V. (2) A significant fraction of RSGs in Galactic OB associations and clusters show up to several magnitudes of excess visual extinction compared to OB stars in the same regions; we argue that this is likely due to circumstellar dust around the RSGs. (3) RSGs contribute dust grains at the rate of $3\times 10^{-8}{M}_{\odot }$ yr${}^{-1}$ kpc${}^{-2}$ in the solar neighborhood, comparable to what we estimate for late-type WC Wolf-Rayet stars, $1\times 10^{-7}{M}_{\odot }$ yr${}^{-1}$ kpc${}^{-2}$. In the solar neighborhood this represents only a few percent of the dust production (which is dominated by low-mass AGBs), but we note that in low-metallicity starbursts, dust production by RSGs would likely dominate over other sources.

arXiv commentAccepted by the Astrophysical Journal

References in corpus (5)

• Correcting for the Effects of Interstellar Extinction
• The Evolution of the Elemental Abundances in the Gas and Dust Phases of the Galaxy
• The Effective Temperature Scale of Galactic Red Supergiants: Cool, But Not As Cool As We Thought
• Stellar evolution with rotation X: Wolf-Rayet star populations at solar metallicity
• Ultraviolet Extinction Properties in the Milky Way

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