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  • NAM2021
    • Contacts
  • Science
    • Science Programme
    • Plenary Talks
    • Parallel Sessions
    • Special Lunches/Discussion Sessions
    • Poster Session
    • NAM Community Session
  • Social
    • Presidential Address
    • Herschel Concert
    • RAS Awards Ceremony
    • Virtual Stonehenge Tour
  • Media
  • Public Engagement
    • Public engagement opportunities
    • Public talk
    • Writing Skyscapes
  • Venue
    • Code of Conduct
    • Accessing the conference
    • Gather.town
    • NAM2021 Slack
    • About Bath

Poster

id
The Unseen Side of F8D1 through the Lens of Hyper Suprime-Cam
LSB Universe
Rokas
Žemaitis
Date Submitted
2021-04-30 00:00:00
Institute for Astronomy, University of Edinburgh, UK
R. Žemaitis (Institute for Astronomy, University of Edinburgh, UK), A. M. N. Ferguson (Institute for Astronomy, University of Edinburgh, UK), S. Okamoto (National Astronomical Observatory of Japan), N. Arimoto (National Astronomical Observatory of Japan), M. J. Irwin (Institute of Astronomy, University of Cambridge, UK), Y. Utsumi (SLAC National Accelerator Laboratory, USA)
The elusive low surface brightness components of galaxies – such as stellar halos and tidal features – are crucial components for understanding the way in which galaxies grow as well as for tracing their dark matter halos. I will present results from a state-of-the-art survey designed to probe low surface brightness structures in the nearby M81 Group. Using Hyper Suprime-Cam on the Subaru Telescope, our survey maps individual red giant branch stars over more than 11 square degrees. In this poster, I will present a giant tidal stream that we have discovered from the M81 Group dwarf galaxy F8D1, discussing its characteristics and the origin of its disruption. I will also discuss how this disruption might explain the properties of F8D1 itself, which is one of the closest known examples of the ultra-diffuse galaxy population.

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