Different to the core: the pre-supernova structures of massive single and binary-stripped stars [PDF]
Astronomy & Astrophysics, 2021 The majority of massive stars live in binary or multiple systems and will interact during their lifetimes, which helps to explain the observed diversity of core-collapse supernovae.
E. Laplace +6 more
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Muonic Boson Limits: Supernova Redux [PDF]
, 2021 We derive supernova (SN) bounds on muon-philic bosons, taking advantage of the recent emergence of muonic SN models. Our main innovations are to consider scalars $\phi$ in addition to pseudoscalars $a$ and to include systematically the generic two-photon
A. Caputo, G. Raffelt, E. Vitagliano
semanticscholar +1 more source
SNEWS 2.0: a next-generation supernova early warning system for multi-messenger astronomy [PDF]
New Journal of Physics, 2020 The next core-collapse supernova in the Milky Way or its satellites will represent a once-in-a-generation opportunity to obtain detailed information about the explosion of a star and provide significant scientific insight for a variety of fields because ...
S. A. Kharusi +70 more
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Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source [PDF]
Science, 2017 Photons from a gravitational wave event Two neutron stars merging together generate a gravitational wave signal and have also been predicted to emit electromagnetic radiation. When the gravitational wave event GW170817 was detected, astronomers rushed to
D. Coulter +20 more
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Improved axion emissivity from a supernova via nucleon-nucleon bremsstrahlung [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 The most efficient axion production mechanism in a supernova (SN) core is the nucleon-nucleon bremsstrahlung. This process has been often modeled at the level of the vacuum one-pion exchange (OPE) approximation. Starting from this naive recipe, we revise
Pierluca Carenza +5 more
semanticscholar +1 more source
The electron-capture origin of supernova 2018zd [PDF]
Nature Astronomy, 2020 In the transitional mass range (~8–10 solar masses) between white dwarf formation and iron core-collapse supernovae, stars are expected to produce an electron-capture supernova.
D. Hiramatsu +29 more
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Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples [PDF]
, 2014 Aims. We present cosmological constraints from a joint analysis of type Ia supernova (SN Ia) observations obtained by the SDSS-II and SNLS collaborations.
M. Betoule +71 more
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Fast Flavor Depolarization of Supernova Neutrinos. [PDF]
Physical Review Letters, 2020 Flavor-dependent neutrino emission is critical to the evolution of a supernova and its neutrino signal. In the dense anisotropic interior of the star, neutrino-neutrino forward scattering can lead to fast collective neutrino oscillations, which has ...
Soumya Bhattacharyya, B. Dasgupta
semanticscholar +1 more source
A revised catalogue of 294 Galactic supernova remnants [PDF]
Journal of astrophysics and astronomy, 2019 A revised catalogue of Galactic supernova remnants (SNRs) is presented, along with some simple statistics of their properties. Six new SNRs have been added to the catalogue since the previous published version from 2014, and six entries have been removed,
D. Green
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Discovery of a supernova explosion at half the age of the Universe [PDF]
Nature, 1997 The ultimate fate of the Universe, infinite expansion or a big crunch, can be determined by using the redshifts and distances of very distant supernovae to monitor changes in the expansion rate.
S. Perlmutter +22 more
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