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Direct Imaging Explorations for Companions around Mid–Late M Stars from the Subaru/IRD Strategic Program 

  • Authors: Taichi Uyama, Charles Beichman, Masayuki Kuzuhara, Markus Janson, Takayuki Kotani, Dimitri Mawet, Bun'ei Sato, Motohide Tamura, Hiroyuki Tako Ishikawa, Bryson Cale, Thayne Currie, Hiroki Harakawa, Thomas Henning, Teruyuki Hirano, Klaus Hodapp, Yasunori Hori, Masato Ishizuka, Shane Jacobson, Yui Kasagi, Eiichiro Kokubo, Mihoko Konishi, Tomoyuki Kudo, Takashi Kurokawa, Nobuhiko Kusakabe, Jungmi Kwon, Masahiro Machida, Takao Nakagawa, Norio Narita, Jun Nishikawa, Masahiro Ogihara, Masashi Omiya, Takuma Serizawa, Akitoshi Ueda, Sébastien Vievard, Ji Wang

Taichi Uyama et al 2023 The Astronomical Journal 165 .

  • Provider: AAS Journals

Caption: Figure 7.

Left: mass ratio (q) vs. separation diagram of the resolved companions in this study (red; only those whose mass ratios we estimated) overlaid with other imaging studies (gray). The stars, triangles, and plus signs correspond to Biller et al. (2022), Calissendorff et al. (2022) and De Furio et al. (2022a, 2022b), respectively. We adopted the semimajor axes derived from orbital fitting for the companions in Calissendorff et al. (2022) and Biller et al. (2022 ) and the projected separations for the resolved companions in this study and De Furio et al. (2022a, 2022b). Right: histogram of the mass ratios of the companions in the left panel.

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