천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제46권2호
- /
- Pages.52.4-52.4
- /
- 2021
- /
- 1226-2692(pISSN)
7-Dimensional Telescope (7DT) for multi-messenger astronomy
- Im, Myungshin (Seoul National University) ;
- Lee, Hyung Mok (Seoul National University) ;
- Jung, Jae-Hun (Pohang University of Science and Technology) ;
- Kim, Chunglee (Ewha Womans University) ;
- Shafieloo, Arman (Korea Astronomy Space Science Institute) ;
- Uhm, Z. Lucas (Korea Astronomy Space Science Institute)
- 발행 : 2021.10.13
초록
The 7-dimensional Telescope (7DT) is an innovative multiple telescope system that can perform a rapid identification of optical counterparts of gravitational-wave (GW) sources and a wide variety of other astronomical projects. This telescope is being developed as a part of the recently approved National Challenge program, the GW Universe project, with a full operation planned at the end of 2023. The word 7-dimension stands for x, y, z positions, the radial velocity, the time, the wavelength, and the flux of astronomical sources, implying the telescope's capability of performing time-series wide-field, IFU-type spectroscopic observations. The 7DT is composed of about twenty 0.5-m wide-field telescopes, and it can obtain spectral-imaging data at 40 different wavelengths to the depth of 20 AB mag with 3 min exposure for a given epoch. In this talk, we will introduce the telescope system, and outline its scientific capabilities with an emphasis on multi-messenger astronomy and a few other key science topics.
키워드