期刊
SCIENCE
卷 358, 期 6370, 页码 1583-1587出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaq0073
关键词
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资金
- Kavli Foundation
- Danish National Research Foundation (DNRF)
- Niels Bohr International Academy
- DARK Cosmology Centre
- NSF [AST-1518052]
- Gordon & Betty Moore Foundation
- Heising-Simons Foundation
- UCSC Giving Day grant
- Alfred P. Sloan Foundation
- David and Lucile Packard Foundation
- DNRF
- UCMEXUS-CONACYT
- U.S. Department of Energy (DOE) [DE-SC0008067]
- DOE Office of Nuclear Physics [DE-SC0017616]
- DOE SciDAC award [DE-SC0018297]
- Office of Energy Research, Office of High Energy and Nuclear Physics, Divisions of Nuclear Physics, of the U.S. DOE [DE-AC02-05CH11231]
- Dunlap Institute at the University of Toronto
- Carnegie-Princeton Fellowship
- NASA - Space Telescope Science Institute [HST-HF-51373.001]
- National Aeronautics and Space Administration
- NASA [NAS 5-26555]
- [GO-14840]
- U.S. Department of Energy (DOE) [DE-SC0017616, DE-SC0008067] Funding Source: U.S. Department of Energy (DOE)
- Direct For Mathematical & Physical Scien [1720756] Funding Source: National Science Foundation
- Division Of Astronomical Sciences [1720756] Funding Source: National Science Foundation
Eleven hours after the detection of gravitational wave source GW170817 by the Laser Interferometer Gravitational-Wave Observatory and Virgo Interferometers, an associated optical transient, SSS17a, was identified in the galaxy NGC 4993. Although the gravitational wave data indicate that GW170817 is consistent with the merger of two compact objects, the electromagnetic observations provide independent constraints on the nature of that system. We synthesize the optical to near-infrared photometry and spectroscopy of SSS17a collected by the One-Meter Two-Hemisphere collaboration, finding that SSS17a is unlike other known transients. The source is best described by theoretical models of a kilonova consisting of radioactive elements produced by rapid neutron capture (the r-process). We conclude that SSS17a was the result of a binary neutron star merger, reinforcing the gravitational wave result.
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