J/ApJ/852/43 Ne and Na neutrino energy spectra (Misch+, 2018)
Neutrino spectra from nuclear weak interactions in sd-shell nuclei under
astrophysical conditions.
Misch G.W., Sun Y., Fuller G.M.
<Astrophys. J., 852, 43-43 (2018)>
=2018ApJ...852...43M 2018ApJ...852...43M (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: astroparticle physics; neutrinos;
nuclear reactions, nucleosynthesis, abundances; stars: evolution
Abstract:
We present shell model calculations of nuclear neutrino energy spectra
for 70 sd-shell nuclei over the mass number range A=21-35. Our
calculations include nuclear excited states as appropriate for the hot
and dense conditions characteristic of pre-collapse massive stars. We
consider neutrinos produced by charged lepton captures and decays, and
for the first time in tabular form, neutral current nuclear
deexcitation, providing neutrino energy spectra on the
Fuller-Fowler-Newman temperature-density grid for these interaction
channels for each nucleus. We use the full sd-shell model space to
compute initial nuclear states up to 20 MeV excitation with
transitions to final states up to 35-40 MeV, employing a modification
of the Brink-Axel hypothesis to handle high-temperature population
factors and the nuclear partition functions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
neon21.dat 67 120 Beta 21Ne spectrum (A,Z)=(21,10),
Abridged to Figure 6
neon23.dat 71 420 Beta 23Ne spectrum (A,Z)=(23,10),
Abridged to Figures 4,5
sodium21.dat 72 315 Beta 21Na spectrum (A,Z)=(21,11),
Abridged to Figures 3,5
sodium25.dat 67 72 Beta 25Na spectrum (A,Z)=(25,11),
Abridged to Figure 8
pairna25.dat 23 1000 Pair 25Na spectrum (A,Z)=(25,11),
Abridged to Figure 7
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See also:
J/ApJ/686/448 : Neutrino cross sections for SNe (Yoshida+, 2008)
Byte-by-byte Description of file: neon21.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 E7.1 g/cm3 rho.Ye [10] Density * the electron fraction
9- 14 F6.4 MeV Temp [0.03/0.26] Temperature (1)
16- 19 F4.1 MeV Energy [0.5/30] Neutrino energy
21- 31 E11.4 --- elec-cap [0] Electron capture spectrum,
neutrinos/s/baryon/MeV
33- 43 E11.4 --- posi-dec [0] Positron decay spectrum,
neutrinos/s/baryon/MeV
45- 55 A11 --- posi-cap [0/7.7e-10] Positron capture spectrum,
neutrinos/s/baryon/MeV
57- 67 A11 --- elec-dec [0/4.2e-13] Electron decay spectrum,
neutrinos/s/baryon/MeV
--------------------------------------------------------------------------------
Note (1): Tabulation contains only the temperatures and densities shown
in the figure 6
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Byte-by-byte Description of file: neon23.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 E7.1 g/cm3 rho.Ye [10/1e+07] Density * the electron fraction
9- 14 F6.4 MeV Temp [0.0009/0.18] Temperature (1)
16- 23 F8.5 MeV Energy [0.5/30] Neutrino energy, MeV
25- 35 E11.4 --- elec-cap [0] Electron capture spectrum,
neutrinos/s/baryon/MeV
37- 47 E11.4 --- posi-dec [0] Positron decay spectrum,
neutrinos/s/baryon/MeV
49- 59 A11 --- posi-cap [0/7.3e-07] Positron capture spectrum,
neutrinos/s/baryon/MeV
61- 71 A11 --- elec-dec [0/0.00033] Electron decay spectrum,
neutrinos/s/baryon/MeV
--------------------------------------------------------------------------------
Note (1): Tabulation contains only the temperatures and densities shown in the
figures 4,5
--------------------------------------------------------------------------------
Byte-by-byte Description of file: sodium21.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 E7.1 g/cm3 rho.Ye [10/1e+07] Density * the electron fraction
9- 14 F6.4 MeV Temp [0.0009/0.18] Temperature (1)
16- 23 F8.5 MeV Energy [0.5/30] Neutrino energy
25- 35 A11 --- elec-cap [0/0.0032] Electron capture spectrum,
neutrinos/s/baryon/MeV
38- 48 A11 --- posi-dec [0/0.0011] Positron decay spectrum,
neutrinos/s/baryon/MeV
50- 60 E11.4 --- posi-cap [0] Positron capture spectrum,
neutrinos/s/baryon/MeV
62- 72 E11.4 --- elec-dec [0] Electron decay spectrum,
neutrinos/s/baryon/MeV
--------------------------------------------------------------------------------
Note (1): Tabulation contains only the temperatures and densities shown in the
figures 3,5
--------------------------------------------------------------------------------
Byte-by-byte Description of file: sodium25.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 E7.1 g/cm3 rho.Ye [1e+10] Density * the electron fraction
9- 14 F6.4 MeV Temp [0.8617] Temperature, MeV (1)
16- 23 F8.5 MeV Energy [0.5/30] Neutrino energy, MeV
25- 34 E10.4 --- elec-cap [1.4e-11/0.013] Electron capture spectrum,
neutrinos/s/baryon/MeV
36- 45 E10.4 --- posi-dec [0/4.5e-09] Positron decay spectrum,
neutrinos/s/baryon/MeV
47- 56 E10.4 --- posi-cap [2.5e-17/7.4e-10] Positron capture spectrum,
neutrinos/s/baryon/MeV
58- 67 E10.4 --- elec-dec [0/3.1e-06] Electron decay spectrum,
neutrinos/s/baryon/MeV
--------------------------------------------------------------------------------
Note (1): Tabulation contains only the temperatures and densities shown in the
figure 8
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Byte-by-byte Description of file: pairna25.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 F6.4 MeV Temp [0.08/0.87] Temperature (1)
8- 11 F4.1 MeV Energy [0.1/25] Neutrino energies
13- 23 A11 --- Spectrum [0/1.1e-05] Neutrino spectra,
neutrinos/s/baryon/MeV
--------------------------------------------------------------------------------
Note (1): Tabulation contains only the temperatures and densities shown in the
figure 7
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 20-Jul-2018