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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 4.

Same proper-motion test as in Figure 2 for the companion candidates around LSPM J1922+0702. The first and second epochs correspond to the NIRC2 observations on 2022 August 8 and 2022 November 8, respectively. We attribute the difference between the expected position (red plus sign) and the second epoch (orange plus sign) to the proper motion of the background stars and potential proper-motion acceleration by an unseen companion.

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