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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20230307T123000
DTEND;TZID=Atlantic/Canary:20230307T133000
UID:iactalks-1652
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1652
CREATED:2023-03-07T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Halo substructures seen by Gaia
DESCRIPTION:Halo substructures seen by Gaia\nDr. Eduardo Balbinot\n\nOnly r
 ecently, thanks to the Gaia, have we been able to directly measure how our
  own Galaxy was formed since its infancy, by cannibalizing smaller galaxie
 s formed at the core of dark matter subhalos. These accretion events can b
 e seen as kinematic groups and may have brought their own group of globula
 r clusters, some of which are only seen today as their remnant cold stella
 r streams. Here I will discuss how the main accretion events unveiled by G
 aia can be linked to previously known halo substructures, mainly large ste
 llar clouds identified more than a decade ago in large photometric surveys
 . Additionally I will discuss the Jhelum stellar stream in the light of it
 s interaction with the Sagittarius stream, which can give us insight on th
 e details of this ongoing accretion event. Finally, I will briefly discuss
  how the new Gaia XP DR3 spectra is aiding in  the identification of 
 metal-poor unmixed halo substructures in the solar neighbourhood, highligh
 ting the case of ED-2, a [Fe/H] = -2.5 cold stellar stream in which the Su
 n is embedded in. \nFinally, I will briefly discuss how the new Gaia 
 XP DR3 spectra is aiding in  the identification of metal-poor unmixed
  halo substructures in the solar neighbourhood, highlighting the case
  of ED-2, a [Fe/H] = -2.5 cold stellar stream  in which the Sun is em
 bedded in.
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