BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Impact of primordial magnetic fields on matter power spectrum - Pr
 anjal Ralegankar (SISSA)
DTSTART:20240624T110000Z
DTEND:20240624T120000Z
UID:TALK217741@talks.cam.ac.uk
CONTACT:Sandro Tacchella
DESCRIPTION:Primordial magnetic fields (PMFs) offer a simple explanation f
 or the origin of galactic magnetic fields as well as of the purportedly de
 tected magnetic fields in cosmic voids. In the talk\, I discuss how PMFs' 
 influence on structure formation can offer a complementary method to test 
 for their existence. Specifically\, I discuss how PMFs enhance the matter 
 power spectrum on small scales (sub-Mpc). On scales relevant to galaxies a
 nd black holes\, I show that PMFs can significantly enhance the baryon fra
 ction in halos as well as the abundance of halos. Next\, I show that on sc
 ales below the baryon Jeans scales\, PMFs can enhance dark matter power sp
 ectrum purely by gravitational influence. I conclude by arguing how search
  for dark matter minihalos can potentially provide the most sensitive prob
 e for PMFs.
LOCATION:Ryle seminar room + online
END:VEVENT
END:VCALENDAR