主要内容:
大质量的超亮的Ib/c型超新星。文章是simulation。
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文章信息:
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- · arXiv e-print (arXiv:1401.5837)
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Abstract
Population III supernovae have been of growing interest of late for
their potential to directly probe the properties of the first stars,
particularly the most energetic events that are visible near the edge of
the observable universe. But until now,
hypernovae, the unusually
energetic Type Ib/c supernovae that are sometimes associated with
gamma-ray bursts, have been overlooked as cosmic lighthouses at the
highest
redshifts. In this, the latest of a series of studies on
Population III supernovae, we present numerical simulations of 25 - 50
M$_{\odot}$
hypernovae and their light curves done with the Los Alamos
RAGE and SPECTRUM codes. We find that they will be visible at z = 10 -
15 to the James Webb Space Telescope (JWST) and z = 4 - 5
to the
Wide-Field Infrared Survey Telescope (WFIRST), tracing star formation
rates in the first galaxies and at the end of cosmological reionization.
If, however, the
hypernova crashes into a dense shell ejected by its
progenitor, a
superluminous event will occur that may be seen at z ~ 20,
in the first generation of stars.
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