Detectability of the first cosmic explosions

• Verfasst von: Souza, Rafael S. de [VerfasserIn]
• Verfasst von: Ishida, E. E. O. [VerfasserIn]
• Verfasst von: Johnson, J. L. [VerfasserIn]
• Verfasst von: Whalen, Daniel J. [VerfasserIn]
• Verfasst von: Mesinger, A. [VerfasserIn]
• Titel: Detectability of the first cosmic explosions
• Verf.angabe: R.S. de Souza, E.E.O. Ishida, J.L. Johnson, D.J. Whalen and A. Mesinger
• E-Jahr: 2013
• Jahr: 2013 October 16
• Umfang: 9 S.
• Fussnoten: Gesehen am 10.12.2020
• Titel Quelle: Enthalten in: Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society
• Ort Quelle: Oxford : Oxford Univ. Press, 1827
• Jahr Quelle: 2013
• Band/Heft Quelle: 436(2013), 2, Seite 1555-1563
• ISSN Quelle: 1365-2966
• DOI: doi:10.1093/mnras/stt1680
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1742485758

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 ≲ 8 per cent of the total allocation time of the James Webb Space Telescope mission can provide us with up to ∼9-15 detectable PISNe per year.