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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 3.

Summary of the Keck/NIRC2 observations. The target name and filter used are labeled in the upper right corner of each panel. All of the images are rotated such that north is up and the primary star is located at the center. The color scale is arbitrarily set to clearly show our detections. The ADI/RDI postprocessed panels (LSPM J0008+4918, LSPM J0044+0907, LSPM J0859+7257, LSPM J1717+1140, LSPM J1922+0702 (﹩L^{\prime} ﹩), LSPM J2043+0445, and LSPM J2338+3909) correspond to S/N maps after smoothing the output images by a Gaussian (σ = 3 pixel). For these data sets, the central star is masked by the algorithm. The faint companion candidates are indicated by white arrows, and detailed information about the detected companion candidates is summarized in Table 4.

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