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Title: Evidence from stable isotopes and 10Be for solar system formation triggered by a low-mass supernova

About 4.6 billion years ago, some event disturbed a cloud of gas and dust, triggering the gravitational collapse that led to the formation of the solar system. A core-collapse supernova, whose shock wave is capable of compressing such a cloud, is an obvious candidate for the initiating event. This hypothesis can be tested because supernovae also produce telltale patterns of short-lived radionuclides, which would be preserved today as isotopic anomalies. Previous studies of the forensic evidence have been inconclusive, finding a pattern of isotopes differing from that produced in conventional supernova models. Here we argue that these difficulties either do not arise or are mitigated if the initiating supernova was a special type, low in mass and explosion energy. Key to our conclusion is the demonstration that short-lived 10Be can be readily synthesized in such supernovae by neutrino interactions, while anomalies in stable isotopes are suppressed.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Monash Univ., Melbourne, VIC (Australia); Shanghai Jiao Tong Univ., Shanghai (China)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS
OSTI Identifier:
1413711

Banerjee, Projjwal, Qian, Yong -Zhong, Heger, Alexander, and Haxton, W. C.. Evidence from stable isotopes and 10Be for solar system formation triggered by a low-mass supernova. United States: N. p., Web. doi:10.1038/ncomms13639.
Banerjee, Projjwal, Qian, Yong -Zhong, Heger, Alexander, & Haxton, W. C.. Evidence from stable isotopes and 10Be for solar system formation triggered by a low-mass supernova. United States. doi:10.1038/ncomms13639.
Banerjee, Projjwal, Qian, Yong -Zhong, Heger, Alexander, and Haxton, W. C.. 2016. "Evidence from stable isotopes and 10Be for solar system formation triggered by a low-mass supernova". United States. doi:10.1038/ncomms13639. https://www.osti.gov/servlets/purl/1413711.
@article{osti_1413711,
title = {Evidence from stable isotopes and 10Be for solar system formation triggered by a low-mass supernova},
author = {Banerjee, Projjwal and Qian, Yong -Zhong and Heger, Alexander and Haxton, W. C.},
abstractNote = {About 4.6 billion years ago, some event disturbed a cloud of gas and dust, triggering the gravitational collapse that led to the formation of the solar system. A core-collapse supernova, whose shock wave is capable of compressing such a cloud, is an obvious candidate for the initiating event. This hypothesis can be tested because supernovae also produce telltale patterns of short-lived radionuclides, which would be preserved today as isotopic anomalies. Previous studies of the forensic evidence have been inconclusive, finding a pattern of isotopes differing from that produced in conventional supernova models. Here we argue that these difficulties either do not arise or are mitigated if the initiating supernova was a special type, low in mass and explosion energy. Key to our conclusion is the demonstration that short-lived 10Be can be readily synthesized in such supernovae by neutrino interactions, while anomalies in stable isotopes are suppressed.},
doi = {10.1038/ncomms13639},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {11}
}