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  • NAM2017
    • Timetable
    • Delegates
    • Registration
  • Science
    • Parallel sessions
    • Plenary talks
    • Posters
    • Publishing workshop
    • Media workshop
    • Community forum
    • Special lunches
    • Hack day
  • Social
    • Welcome reception
    • Conference dinner
    • Football + BBQ evening
  • Outreach
    • Public talk
    • Outreach day
    • Media
  • Hull
    • Travel
    • Accommodation
    • Going out
    • Childcare
  • Contacts

Schedule by Session

Abstract
id
Exploring the High-Redshift Universe with Current and Future Facilities
Strong gravitational lensing with Euclid and SPICA: new windows on ultra-high redshifts
Date Submitted
Stephen Serjeant
Lucia Marchetti (University of the Western Cape, South Africa)
The Open University
The number densities of Lyman alpha emitters (LAEs) around L* drop very quickly above z=6, yet several examples of bright LAEs at z>7 suggest a different evolution at the bright end. One explanation is earlier reionization and higher Lyman alpha escape fractions in overdense regions. I will show that bright LAEs also have their detectability strongly enhanced by strong magnification bias from gravitational lensing by foreground galaxies, regardless of the high-z evolution of the luminosity function. The implication is that Euclid's 40 square degree imaging and grism spectroscopy survey will be extremely effective at probing bright ultra-high-redshift populations through strong lensing. These will be the brightest ultra-high-redshift line emitters known on the sky and wonderful JWST targets. I will also review the prospects of using similar magnification bias in CMB stage IV experiments, and the prospects of using SPICA follow-ups to track shock-heated molecular hydrogen lines at ultra-high-redshifts and the formation of the first organic molecules in the Universe.
Schedule
id
Wednesday
date time
09:00 - 10:30
10:15
Abstract

Wilberforce LT-1

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