# New constraint on the atmosphere of (50000) Quaoar from a stellar occultation.

@article{Arimatsu2019NewCO,
title={New constraint on the atmosphere of (50000) Quaoar from a stellar occultation.},
author={K. Arimatsu and R. Ohsawa and G. Hashimoto and S. Urakawa and J. Takahashi and Miyako Tozuka and Y. Itoh and M. Yamashita and F. Usui and T. Aoki and N. Arima and M. Doi and Makoto Ichiki and S. Ikeda and Y. Ita and Toshihiro Kasuga and N. Kobayashi and M. Kokubo and M. Konishi and H. Maehara and N. Matsunaga and Takashi Miyata and M. Morii and T. Morokuma and K. Motohara and Y. Nakada and S. Okumura and S. Sako and Y. Sarugaku and Mikiya Sato and Toshikazu Shigeyama and T. Soyano and H. Takahashi and Ken-ichi Tarusawa and N. Tominaga and Jun-ichi Watanabe and T. Yamashita and M. Yoshikawa},
journal={arXiv: Earth and Planetary Astrophysics},
year={2019}
}
• K. Arimatsu, +35 authors M. Yoshikawa
• Published 2019
• Physics
• arXiv: Earth and Planetary Astrophysics
• We report observations of a stellar occultation by the classical Kuiper belt object (50000) Quaoar occurred on 28 June 2019. A single-chord high-cadence (2 Hz) photometry dataset was obtained with the Tomo-e Gozen CMOS camera mounted on the 1.05 m Schmidt telescope at Kiso Observatory. The obtained ingress and egress data do not show any indication of atmospheric refraction and allow to set new $1\sigma$ and $3\sigma$ upper limits of 6 and 16 nbar, respectively, for the surface pressure of a… CONTINUE READING
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