H
Hans-Thomas Janka
Researcher at Max Planck Society
Publications - 273
Citations - 24766
Hans-Thomas Janka is an academic researcher from Max Planck Society. The author has contributed to research in topics: Supernova & Neutrino. The author has an hindex of 86, co-authored 263 publications receiving 21791 citations. Previous affiliations of Hans-Thomas Janka include Maine Principals' Association.
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Journal ArticleDOI
Nucleosynthesis in electron capture supernovae of asymptotic giant branch stars
Shinya Wanajo,Shinya Wanajo,Ken'ichi Nomoto,Ken'ichi Nomoto,Hans-Thomas Janka,Francisco-Shu Kitaura,Bernhard Müller +6 more
TL;DR: In this article, the authors studied nucleosynthesis in the electron capturesupernovae of stars with an O- Ne-M g core with an initial mass of 8:8M and showed that the production of 64 Zn is fairly robust against a 1 2% increase of the m inim um Ye m oderates the overproduction of 90 Zr.
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Electron-capture supernovae as the origin of elements beyond iron
TL;DR: In this article, electron-capture supernovae (ECSNe) were examined as sources of elements heavier than iron in the solar system and in the Galactic halo stars and it was shown that neutron-rich convective lumps with an electron fraction down to Ye,min=0.40 allow for interesting production of elements between the iron group and N=50 nuclei in nuclear (quasi-)equilibrium.
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Self-sustained asymmetry of lepton-number emission: A new phenomenon during the supernova shock-accretion phase in three dimensions
Irene Tamborra,Florian Hanke,Hans-Thomas Janka,Bernhard Mueller,Georg G. Raffelt,Andreas Marek +5 more
TL;DR: In this article, the neutrino-hydrodynamical instability is termed LESA for "Lepton-number emission self-sustained asymmetry" and the neutrinosphere is assumed to be spherically symmetric.
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Equation-of-state dependent features in shock-oscillation modulated neutrino and gravitational-wave signals from supernovae
TL;DR: In this paper, the authors present two-dimensional (axisymmetric) neutrino-hydrodynamic simulations of the long-time accretion phase of a 15 Mprogen-itor star after core bounce and before the launch of a supernova explosion, when non-radial hydrodynamic instabilities like convection occur in different regions of the collapsing stellar core and the standing accretion shock instability (SASI) leads to large-amplitude scaling of the stalled shock with a period of tens of milliseconds.
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Testing approximations of thermal effects in neutron star merger simulations
TL;DR: In this article, the authors performed three-dimensional relativistic hydrodynamical calculations of neutron star mergers to assess the reliability of an approximate treatment of thermal effects in such simulations by combining an ideal-gas component with zero-temperature, microphysical equations of state.