BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ZContent.net//ZapCalLib 1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20210513T103000
DTEND;TZID=Atlantic/Canary:20210513T113000
UID:iactalks-1472
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1472
CREATED:2021-05-13T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Constraints on Ultra-Light Dark Matter from Galactic Rotation Curve
 s
DESCRIPTION:Constraints on Ultra-Light Dark Matter from Galactic Rotation C
 urves\nProf. Diego Blas\n\nBosonic ultra-light dark matter (ULDM) in the m
 ass range m ~ $10^{-22} - 10^{-21} \rm eV$ has been invoked as a motivated
  candidate with new input for the small-scale `puzzles' of cold dark matte
 r. Numerical simulations show that these models form cored density distrib
 utions at the center of galaxies ('solitons'). These works also found an e
 mpirical scaling relation between the mass of the large-scale host halo an
 d the mass of the central soliton. We show that this relation predicts tha
 t the peak circular velocity of the outskirts of the galaxy should approxi
 mately repeat itself in the central region. Contrasting this prediction to
  the measured rotation curves of well-resolved near-by galaxies, we show t
 hat ULDM in the mass range m ~ $10^{-22} - 10^{-21} \rm eV$ is in tension 
 with the data.
END:VEVENT
END:VCALENDAR