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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Detectability of the first cosmic explosions

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Author(s):
de Souza, R. S. [1] ; Ishida, E. E. O. [2] ; Johnson, J. L. [3, 4] ; Whalen, D. J. [3, 5] ; Mesinger, A. [6]
Total Authors: 5
Affiliation:
[1] Korea Astron & Space Sci Inst, Taejon 305348 - South Korea
[2] Univ Sao Paulo, IAG, BR-05508900 Sao Paulo - Brazil
[3] Los Alamos Natl Lab, Los Alamos, NM 87545 - USA
[4] Max Planck Inst Extraterr Phys, D-85748 Garching - Germany
[5] Heidelberg Univ, Zentrum Astron, Inst Theoret Astrophys, D-69120 Heidelberg - Germany
[6] Scuola Normale Super Pisa, I-56126 Pisa - Italy
Total Affiliations: 6
Document type: Journal article
Source: Monthly Notices of the Royal Astronomical Society; v. 436, n. 2, p. 1555-1563, DEC 2013.
Web of Science Citations: 23
Abstract

We present a fully self-consistent simulation of a synthetic survey of the furthermost cosmic explosions. The appearance of the first generation of stars (Population III) in the Universe represents a critical point during cosmic evolution, signalling the end of the dark ages, a period of absence of light sources. Despite their importance, there is no confirmed detection of Population III stars so far. A fraction of these primordial stars are expected to die as pair-instability supernovae (PISNe), and should be bright enough to be observed up to a few hundred million years after the big bang. While the quest for Population III stars continues, detailed theoretical models and computer simulations serve as a testbed for their observability. With the upcoming near-infrared missions, estimates of the feasibility of detecting PISNe are not only timely but imperative. To address this problem, we combine state-of-the-art cosmological and radiative simulations into a complete and self-consistent framework, which includes detailed features of the observational process. We show that a dedicated observational strategy using less than or similar to 8 per cent of the total allocation time of the James Webb Space Telescope mission can provide us with up to similar to 9-15 detectable PISNe per year. (AU)

FAPESP's process: 11/09525-3 - Analysis of type IA supernovae in wide-field galaxy surveys
Grantee:Emille Eugenia de Oliveira Ishida
Support Opportunities: Scholarships in Brazil - Post-Doctoral