期刊
ASTROPHYSICAL JOURNAL
卷 777, 期 2, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/0004-637X/777/2/110
关键词
early universe; galaxies: high-redshift; hydrodynamics; radiative transfer; shock waves; stars: early-type; supernovae: general
资金
- Bruce and Astrid McWilliams Center for Cosmology at Carnegie Mellon University
- Baden-Wurttemberg-Stiftung [P- LS-SPII/18]
- LANL LDRD Director's Fellowship
- NASA JWST [NAG5-12458]
- National Science Foundation CAREER [PHY-1151836]
- U.S. Department of Energy [DE-FC02-01ER41176, FC02-09ER41618 (SciDAC), DE-FG02-87ER40328]
- National Science Foundation [AST-0909129]
- NASA Theory Program [NNX09AK36G]
- LANL
- National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]
- Direct For Mathematical & Physical Scien [0909129] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1151836] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [0909129] Funding Source: National Science Foundation
The first stars are the key to the formation of primitive galaxies, early cosmological reionization and chemical enrichment, and the origin of supermassive black holes. Unfortunately, in spite of their extreme luminosities, individual Population III (Pop III) stars will likely remain beyond the reach of direct observation for decades to come. However, their properties could be revealed by their supernova explosions, which may soon be detected by a new generation of near-IR (NIR) observatories such as JWST and WFIRST. We present light curves and spectra for Pop III pair-instability supernovae calculated with the Los Alamos radiation hydrodynamics code RAGE. Our numerical simulations account for the interaction of the blast with realistic circumstellar envelopes, the opacity of the envelope, and Lyman absorption by the neutral intergalactic medium at high redshift, all of which are crucial to computing the NIR signatures of the first cosmic explosions. We find that JWST will detect pair-instability supernovae out to z greater than or similar to 30, WFIRST will detect them in all-sky surveys out to z similar to 15-20, and LSST and Pan-STARRS will find them at z less than or similar to 7-8. The discovery of these ancient explosions will probe the first stellar populations and reveal the existence of primitive galaxies that might not otherwise have been detected.
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