The First Supernovae: Source Density and Observability of Pair Instability Supernovae

被引：0

作者：

Hummel, Jacob A. ^{[1
]}

Pawlik, Andreas H. ^{[1
]}

Milosavljevi, Milos ^{[2
]}

Bromm, Volker ^{[1
]}

机构：

[1] Univ Texas Austin, Austin, TX 78712 USA

[2] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

来源：

FIRST STARS IV - FROM HAYASHI TO THE FUTURE | 2012年 / 1480卷

关键词：

cosmology: theory; dark ages; reionization; first stars; supernovae: general; GALAXIES; NUMBER;

D O I：

10.1063/1.4754392

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Theoretical models predict that some of the first stars ended their lives as extremely energetic Pair Instability Supernovae (PISNe). With energies approaching 10(53) erg, these supernovae are expected to be within the detection limits of the upcoming James Webb Space Telescope (JWST) allowing observational constraints to be placed on the properties of the first stars. We estimate the source density of PISNe using a semi-analytic Press-Schecter based approach informed by cosmological simulations, with an upper limit of similar to 0.2 PISNe visible per JWST field of view at any given time. We find that the main obstacle to observing PISNe is their scarcity rather than their faintness. Given this we suggest a mosaic style search strategy for detecting PISNe from the first stars.

引用

页码：376 / 378

页数：3

共 11 条

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