An optical search for transients lasting a few seconds-Reference-Cited by-同舟云学术

An optical search for transients lasting a few seconds

Published:2019-12-06 Issue: Volume: Page:
ISSN:0004-6264
Container-title:Publications of the Astronomical Society of Japan
language:en
Short-container-title:

Author:

Richmond Michael W¹,Tanaka Masaomi²,Morokuma Tomoki³,Sako Shigeyuki³,Ohsawa Ryou³,Arima Noriaki³,Tominaga Nozomu⁴⁵,Doi Mamoru¹⁶,Aoki Tsutomu⁷,Arimatsu Ko⁸,Ichiki Makoto³,Ikeda Shiro⁹,Ita Yoshifusa²,Kasuga Toshihiro¹⁰¹¹,Kawabata Koji S¹²,Kawakita Hideyo¹¹,Kobayashi Naoto³⁷,Kokubo Mitsuru²^ORCID,Konishi Masahiro³,Maehara Hiroyuki¹³,Mito Hiroyuki⁷,Miyata Takashi³,Mori Yuki⁷,Morii Mikio⁹,Motohara Kentaro³,Nakada Yoshikazu³,Okumura Shin-Ichiro¹⁴,Onozato Hiroki¹⁵^ORCID,Sarugaku Yuki¹¹,Sato Mikiya¹⁶,Shigeyama Toshikazu⁶,Soyano Takao⁷,Takahashi Hidenori³⁷,Tanikawa Ataru¹⁷^ORCID,Tarusawa Ken’ichi⁷,Urakawa Seitaro¹⁴,Usui Fumihiko¹⁸,Watanabe Junichi¹⁰,Yamashita Takuya¹⁰,Yoshikawa Makoto¹⁹

Affiliation:

1. Physics Department, Rochester Institute of Technology, 84 Lomb Memorial Drive, Rochester, NY 14623, USA

2. Tohoku University, 6-3 Aramaki, Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan

3. Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan

4. Department of Physics, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Kobe, Hyogo 658-8501, Japan

5. Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan

6. Research Center for the Early Universe, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

7. Kiso Observatory, Institute of Astronomy, School of Science, The University of Tokyo, 10762-30 Mitake, Kiso-machi, Kiso-gun, Nagano 397-0101, Japan

8. Astronomical Observatory, Graduate School of Science, Kyoto University, Kitashirakawa-oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan

9. The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan

10. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan

11. Department of Physics, Kyoto Sangyo University, Motoyama Kamigamo Kita-ku, Kyoto, Kyoto 603-8555, Japan

12. Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan

13. Okayama Branch Office, Subaru Telescope, National Astronomical Observatory of Japan, NINS, 3037-5 Honjo, Kamogata, Asakuchi, Okayama 719-0232, Japan

14. Japan Spaceguard Association, Bisei Spaceguard Center, 1716-3 Okura, Bisei, Ibara, Okayama 714-1411, Japan

15. Nishi-Harima Astronomical Observatory, Center for Astronomy, Institute of Natural and Environmental Sciences, University of Hyogo, 407-2 Nishigaichi, Sayo-cho, Sayo-gun, Hyogo 679-5313, Japan

16. The Nippon Meteor Society, Japan

17. College of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan

18. Center for Planetary Science, Graduate School of Science, Kobe University, 7-1-48 Minatojima- Minamimachi, Chuo-Ku, Kobe, Hyogo 650-0047, Japan

19. Japan Aerospace eXploration Agency, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan

Abstract

Abstract Using a prototype of the Tomo-e Gozen wide-field CMOS mosaic camera, we acquire wide-field optical images at a cadence of $2\:$Hz and search them for transient sources of duration 1.5 to $11.5\:$s. Over the course of eight nights, our survey encompasses the equivalent of roughly two days on one square degree, to a fluence equivalent to a limiting magnitude of about $V = 15.6$ in a 1-s exposure. After examining by-eye the candidates identified by a software pipeline, we find no sources which meet all our criteria. We compute upper limits to the rate of optical transients consistent with our survey, and compare those to the rates expected and observed for representative sources of ephemeral optical light.

Funder

Japan Society for the Promotion of Science

Japan Science and Technology Agency

Precursory Research for Embryonic Science and Technology

Research Center for the Early Universe

School of Science at the University of Tokyo

Optical and Near-infrared Astronomy Inter-University Cooperation Program

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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