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Finding Ancient Supernovae at 5 < z < 12 with Frontier Fields

Published online by Cambridge University Press:  27 October 2016

Daniel J. Whalen
Daniel J. Whalen*
Affiliation:
Zentrum für Astronomie, Institut für Theoretische Astrophysik, Universität Heidelberg, Albert-Ueberle-Str. 2, 69120 Heidelberg, Germany email: dwhalen@uni-heidelberg.de
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Abstract

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Supernovae are important probes of the properties of stars at high redshifts because they can be detected at early epochs and their masses can be inferred from their light curves. Direct detection of the first cosmic explosions in the universe will only be possible with JWST, WFIRST and the next generation of extremely large telescopes. But strong gravitational lensing by massive clusters, like those in the Frontier Fields, could reveal supernovae at slightly lower redshifts now by magnifying their flux by factors of 10 or more. We find that Frontier Fields will likely discover dozens of core-collapse supernovae at 5 < z < 12. Future surveys of cluster lenses similar in scope to Frontier Fields by JWST might find hundreds of these events out to z ~ 15 - 17. Besides revealing the masses of early stars, these ancient supernovae could also constrain cosmic star formation rates in the era of first galaxy formation.

Keywords

early universegalaxies: high-redshiftgalaxies: clusters: generalgravitational lensinglarge-scale structure of universestars: early-typesupernovae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , General Assembly A29B: Astronomy in Focus , August 2015 , pp. 825 - 826
Copyright
Copyright © International Astronomical Union 2016 

References

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