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SUMMARY:Cold Giants in the Gaia Era and Multi-Technique Synergies - Anne-M
 arie Lagrange (Observatoire de Paris)
DTSTART:20260303T120000Z
DTEND:20260303T130000Z
UID:TALK243178@talks.cam.ac.uk
CONTACT:Dr Dolev Bashi
DESCRIPTION:Giant planets likely govern the assembly and long-term stabili
 ty of planetary systems\, including inner rocky worlds. Yet our knowledge 
 is scarcest precisely where Solar System analogs reside\, at ~5–30 au\, 
 because individual detection techniques (transits\, RVs\, high-contrast im
 aging\, microlensing) each probe only a biased portion of the mass–semi 
 major-axis plane.\n\nI will present the results of surveys combining Gaia 
 DR3 astrometry (and\, when available\, Gaia–Hipparcos proper-motion anom
 alies) with RV and high-contrast imaging. They reveal new outer companions
  to various systems: young stars\, debris-disk\, and nearby M dwarfs\, som
 etimes questioning planet formation and evolution processes. These newly i
 dentified planets will be prime targets for JWST and ELT imaging and atmos
 pheric follow-up. I’ll finally discuss the potential of Gaia DR4 for exo
 planets exploration.\n
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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