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Neutrinos from SN 1987A - Implications for cooling of the nascent neutron star and the mass of the electron antineutrinoData on neutrinos from SN 1987A are compared here with parameterized models of the neutrino emission using a consistent and straightforward statistical methodology. The empirically measured detector background spectra are included in the analysis, and the data are compared with a much wider variety of neutrino emission models than was explored previously. It is shown that the inferred neutrino emission model parameters are strongly correlated. The analysis confirms that simple models of the neutrino cooling of the nascent neutron star formed by the SN adequately explain the data. The inferred radius and binding energy of the neutron star are in excellent agreement with model calculations based on a wide range of equations of state. The results also raise the upper limit of the electron antineutrino rest mass to roughly 25 eV at the 95 percent confidence level, roughly 1.5-5 times higher than found previously.
Document ID
19900058537
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Loredo, Thomas J.
(Chicago Univ. Chicago, IL, United States)
Lamb, Don Q.
(Chicago, University IL, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: New York Academy of Sciences, Annals
Volume: 571
ISSN: 0077-8923
Subject Category
Astrophysics
Accession Number
90A45592
Funding Number(s)
CONTRACT_GRANT: NAGW-830
CONTRACT_GRANT: NGT-50189
CONTRACT_GRANT: NAGW-1284
Distribution Limits
Public
Copyright
Other

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