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Type Ia thermonuclear supernovae neutrino detection

Work with T. Plewa (FSU)

Our recent (02.06.2010) paper, Probing thermonuclear supernova explosions with neutrinos: Arxiv preprint 1006.0490

Meridional cross-sections of 2D thermonuclear supernova models. Delayed detonation model Y12 is shown on the left, pure deflagration model n7d1r15t15c on the right. Colors show neutrino emissivity (negative Radius) and antineutrino emissivity (positive Radius).
Y12 n7d1r1015c
Step-by-step animation of neutrino emissivities for y12 explosion model

To view the animation please download AVI or revisit this web page with a desktop web browser that has the latest version of Adobe Flash Player installed.

Step-by-step animation of neutrino emissivities for n7 explosion model

To view the animation please download AVI or revisit this web page with a desktop web browser that has the latest version of Adobe Flash Player installed.

You might want also to watch the realtime animations ( Y12 , n7d1r10t15c ) or dowload all hi-res frames: y12.tar.7z , n7.tar.7z . All frames can be viewed one-by-one here.

Time-dependent neutrino spectra from 0 to 20 MeV with step 0.1 MeV

Spectrum is available in text format. Rows denote time after ignition (first column, in seconds) , columns show (except first) spectrum points in 1/s/MeV. First column is time, second column spectral emissivity for 0.0 MeV, third column for 0.1 MeV etc.

Spectra for Y12 delayed detonation model:
  1. Electron neutrino spectrum [DAT]
  2. Electron anti-neutrino spectrum [DAT]
  3. Muon and tau flavour combined spectrum [DAT]
Spectra for n7d1r10t15c pure deflagration model:
  1. Electron neutrino spectrum [DAT]
  2. Electron anti-neutrino spectrum [DAT]
  3. Muon and tau flavour combined spectrum [DAT]

Comparison of the solar neutrino spectrum (left) and geo-antineutrinos (right) versus thermonuclear supernova neutrino/antineutrino spectrum from distance of 1 kiloparsec

Y12 n7d1r1015c
Step-by-step animation of neutrino spectra for y12 explosion model

To view the animation please download AVI or revisit this web page with a desktop web browser that has the latest version of Adobe Flash Player installed.

Step-by-step animation of neutrino spectra for n7 explosion model

To view the animation please download AVI or revisit this web page with a desktop web browser that has the latest version of Adobe Flash Player installed.

You might also want to watch the realtime animations ( Y12 [AVI,H.263+] , n7d1r10t15c [AVI,H.263+] ), higher quality Flash file ( Y12 [SWF] , n7d1r10t15c [SWF] ), or dowload all frames:

Geoneutrino spectrum data is from Sanhiro Enomoto PhD, https://www.awa.tohoku.ac.jp/~sanshiro/research/geoneutrino/spectrum/index.html. Solar pp and B8 neutrino spectra are from J. Bahcall homepage, https://www.sns.ias.edu/~jnb/SNdata/sndata.html .

Explanation of the files/tables

Spectra are split into separate files. Filenames are: model_flavour_number.dat Number refer to subsequent dumps of the explosion model. Time step is 0.05 seconds, i.e. file numbered n shows spectra for time n*0.05 seconds after ignition.

Every single file contains four columns, e.g:
Neutrino energy Spectral fluence from:
nucleons nuclei thermal processes
[MeV] [1/MeV/s] [1/MeV/s] [1/MeV/s]
1.000000e-01 2.167117e+48 1.508237e+49 1.589233e+44
1.068471e-01 2.500176e+48 1.733302e+49 3.119337e+44
1.141631e-01 2.886303e+48 1.992805e+49 4.754209e+44
1.219800e-01 3.334356e+48 2.292200e+49 6.501022e+44
...

Neutrino energy is logarithmically spaced, from 0.1 MeV to 20 MeV. TAB ("\t") has been used to separate columns.
Do not hesitate to contact us if you require other ranges, file formats, etc.

Spectra used to prepare figures above in numerical form:
spectra.tar [1910 kb] , spectra.tar.7z [212 kb] ,