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Revealing the Accelerating Wind in the Inner Region of Colliding-wind Binary WR 112

  • Authors: John D. Monnier, Yinuo Han, Michael F. Corcoran, Sanne Bloot, Joseph R. Callingham, William Danchi, Philip G. Edwards, Lincoln Greenhill, Kenji Hamaguchi, Matthew J. Hankins, Ryan Lau, Jon M. Miller, Anthony F. J. Moffat, Garreth Ruane, Christopher M. P. Russell, Anthony Soulain, Samaporn Tinyanont, Peter Tuthill, Jason J. Wang, Peredur M. Williams

John D. Monnier et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 1.

WR 112 N-band (λ ∼ 12 μm) images from two epochs (adapted from Figures 2 and 3 of R. M. Lau et al. 2020). Note the different orientations of the U-shaped structures within 2″ of the central binary, indicative of orbital motion. The rightmost figure shows a dust model applied to the 2016 N-band image. The orbital motion and the expansion of the dust arcs in the wind from WR 112 reproduces the observed spatial distribution of the inner and outer dust arcs projected on the sky.

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