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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20221125T100000
DTEND;TZID=Atlantic/Canary:20221125T110000
UID:iactalks-1633
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1633
CREATED:2022-11-25T10:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Seminario de Instrumentación. A high-resolution ultra-stable spect
 rograph for GTC
DESCRIPTION:Seminario de Instrumentación. A high-resolution ultra-stable s
 pectrograph for GTC\nKai Zhang\n\nWith long-term collaboration between Chi
 nese and Spanish astronomical communities, the National Astronomical Obser
 vatories of China (NAOC) and Instituto de Astrofísica de Canarias (
 IAC) co-promoted a meaningful effort in 2016 to develop a high-resolution 
 ultra-stable spectrograph for the Gran Telescopio CANARIAS (GTC) and absor
 bs the Chinese astronomical community into the GTC partnership. The instru
 ment will enhance the GTC observatory’s capability in exoplanetary r
 esearch and create more chances for the Chinese astronomical community to 
 explore the universe with the existing largest optical telescope.\nIn this
  instrument project, NAOC and Nanjing Institute of Astronomical Optics and
  Technologies (NIAOT) are jointly responsible for developing a high-resolu
 tion spectrograph with competitive capabilities for searching and studying
  habitable exoplanets. The instrument will provide a hybrid observing func
 tion with a high resolution of R≥100000 in the 410–780 nm visible
 /optical band and R≥20000 in the 310–410 nm near-UV band. In the 
 optical band, the spectrograph will run in an ultra-stable vacuum environm
 ent at the Coude room to measure stellar radial velocity. In the near-UV b
 and, the spectrograph near the Nasmyth focus will assist the optical spect
 rograph to distinguish the signals of stellar radial velocity for high pre
 cision RV measurement, and also enable us to observe the celestial objects
  at the shortest wavelength of 310 nm to investigate the origins of some c
 hemical elements. At present, the project team is working on the prelimina
 ry design and aims to complete the first-light observation in 2026.\nThis 
 talk will introduce in detail the scientific motivation and progress in in
 strumental design. We look forward to attracting more interests among the 
 audiences and receiving more comments on science and technology. I believe
  that it would be very helpful to develop a qualified instrument for the G
 TC. On behalf of the project team, I appreciate all the support from the I
 AC and the GRANTECAN S. A.\n \n \nZOOM\nhttps://rediris.zoom.us/
 j/86470284286\nID de reunión: 864 7028 4286\n \nYouTube\nhttps
 ://youtu.be/VZMar0vSGMc
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