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SUMMARY:Census of Northern Local Group Dwarf Galaxies using UNIONS
DTSTART;VALUE=DATE-TIME:20230322T093700Z
DTEND;VALUE=DATE-TIME:20230322T093900Z
DTSTAMP;VALUE=DATE-TIME:20241114T092434Z
UID:indico-contribution-261@meetings.aip.de
DESCRIPTION:Speakers: Simon Smith (University of Victoria)\nDwarf galaxies
  play a key role in probing the dynamics of the Milky Way\, the history of
  star formation in the Local Group\, and the accretion and retention of ga
 s in dark matter halos at the smallest scales of galaxy formation. In this
  work\, we use the Ultraviolet Near-Infrared Optical Northern Survey (UNIO
 NS)\, the deepest\, widest photometric survey ever carried out in the nort
 hern hemisphere\, to complete a systematic analysis of 3600 sq. deg. of sk
 y in search of new dwarf galaxies within 1 Mpc of the Milky Way. This sear
 ch aims to detect Milky Way satellites\, M31 satellites\, and nearby\, iso
 lated dwarf galaxies using a matched-filter algorithm. To date\, all previ
 ously known dwarf galaxies in the survey footprint have been recovered\, e
 ach with high statistical significance. We present the discovery of a new 
 Milky Way dwarf galaxy candidate\, a new\, faint star cluster\, and report
  on the follow-up of numerous high confidence candidate detections. The en
 d goal of this work will be to assess the completeness of the Milky Way sa
 tellite population as a function of position\, luminosity\, mass\, and siz
 e. UNIONS imaging\, when completed\, is the approximate depth of the LSST 
 after a year of operation\, and our studies of the northern hemisphere pro
 vide a complementary approach and foretaste of what will come in the era o
 f Rubin.\n\nhttps://iaus379.aip.de/event/20/contributions/261/
LOCATION:Haus H\, Telegrafenberg
URL:https://iaus379.aip.de/event/20/contributions/261/
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