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SUMMARY:The WEAVE-TwiLight Survey: Implementing and Testing a New Low Fiel
 d Density Observing Mode - Thomas Hajnik / IoA
DTSTART:20250205T131500Z
DTEND:20250205T134000Z
UID:TALK227836@talks.cam.ac.uk
CONTACT:Xander Byrne
DESCRIPTION:Bright exoplanet host stars provide highly precise stellar and
  planetary parameters\, as well as chemical abundances. However\, modern m
 ulti-object spectroscopic surveys often neglect stars brighter than 11 vis
 ual magnitudes due to their relatively low on-sky number density\, resulti
 ng in significant observational overhead. The WEAVE-TwiLight Survey (WTLS)
  will address this gap by employing a groundbreaking observing mode\, that
  allows for observations of low-density/bright star fields\, without compr
 omising survey efficiency. With an input catalogue derived primarily from 
 the northern PLATO long-duration phase field\, WEAVE-TwiLight will result 
 in a highly homogeneous spectral dataset\, characterizing approximately 6\
 ,000 future PLATO targets\, including 68 confirmed planet hosts. In this t
 alk\, I will present the progress made in implementing the new observing m
 ode\, alongside preliminary results from test observations obtained in lat
 e summer 2024\, using WEAVE's high-resolution setup. Full-scale science op
 erations for WEAVE-TwiLight are expected to begin in Q2 of 2025.
LOCATION:The Hoyle Lecture Theatre + Zoom 
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