BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Unveiling the ionising properties of galaxies at the Epoch of Reio
 nisation with NIRCam - Charlotte Simmonds (KICC)
DTSTART:20241025T103000Z
DTEND:20241025T113000Z
UID:TALK220924@talks.cam.ac.uk
CONTACT:Sandro Tacchella
DESCRIPTION:The Epoch of Reionisation describes the cosmic period in which
  the Universe went from\nbeing dark and neutral\, to being transparent to 
 radiation. Understanding the first galaxies\nresponsible for lighting up t
 he Universe is of utmost importance for unveiling the mysteries\nof this e
 poch.\nIn this talk I will present work done through the use of deep NIRCa
 m imaging from the\nJWST Advanced Deep Extragalactic Survey (JADES) to stu
 dy the evolution of the ionising\nphoton production efficiency\, ion\, wit
 h redshift (3<z<9). When ξ observing Lyman-alpha\nemitters (LAEs) and emi
 ssion-line galaxies (ELGs)\, we find that low-mass galaxies with\nbursy st
 ar formation histories are more efficient in producing ionising radiation\
 , and could\nrepresent the main drivers of reionisation. However\, we find
  that the observed increase of\nξion with redshift depends on the nature 
 of the sample: the trends observed in LAEs and\nELGs are less significant 
 when a stellar-mass complete sample is used instead.\nBy combining these r
 esults we find that galaxies are likely the main drivers of reionisation\,
 \nand that there is no crisis in the cosmic ionising budget when a stellar
 -mass complete\nsample is considered.
LOCATION:Ryle Seminar Room\, KICC + online
END:VEVENT
END:VCALENDAR