Two Dynamical Scenarios for Binned Master Sample Interpretation [PDF]
EntropyWe analyze two different scenarios for the late universe dynamics, resulting in Hubble parameters deviating from the ΛCDM, mainly for the presence of an additional free parameter, which is the dark energy parameter.
Giovanni Montani +3 more
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Supernovae and the Arrow of Time [PDF]
Entropy, 2022 Supernovae are explosions of stars and are a central problem in astrophysics. Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities develop during the star’s explosion and lead to intense interfacial RT/RM mixing of the star materials.
Snezhana I. Abarzhi +4 more
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Observational constraints on the progenitors of core-collapse supernovae : the case for missing high mass stars [PDF]
Publications Astronomical Society of Australia, 2015 Over the last 15 years, the supernova community has endeavoured to identify progenitor stars of core-collapse supernovae in high resolution archival images of their galaxies.This review compiles results (from 1999 - 2013) in a distance limited sample and
Smartt, S. J.
core +3 more sources
A persistent influence of supernovae on biodiversity over the Phanerozoic [PDF]
Ecology and Evolution, 2023 It is an open question what has constrained macroevolutionary changes in marine animal diversity on the time scale of the Phanerozoic. Here, we will show that supernovae appear to have significantly influenced the biodiversity of life.
Henrik Svensmark
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Physical mechanism of core-collapse supernovae that neutrinos drive [PDF]
Proceedings of the Japan Academy. Series B, Physical and Biological SciencesThe current understanding of the mechanism of core-collapse supernovae (CCSNe), one of the most energetic events in the universe associated with the death of massive stars and the main formation channel of compact objects such as neutron stars and black ...
Shoichi YAMADA +8 more
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On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference [PDF]
, 2021 A dark-energy which behaves as the cosmological constant until a sudden phantom transition at very-low redshift ($z 4$\sigma$ disagreement between the local and high-redshift determinations of the Hubble constant, while maintaining the phenomenological ...
D. Camarena, V. Marra
semanticscholar +1 more source
Hints of FLRW breakdown from supernovae [PDF]
Physical Review D, 2021 A 10\% difference in the scale for the Hubble parameter constitutes a clear problem for cosmology. Here, considering angular distribution of Type Ia supernovae (SN) within the Pantheon compilation and working within flat $\Lambda$CDM cosmology, we ...
Chethan Krishnan +4 more
semanticscholar +1 more source
Magnetorotational supernovae: A nucleosynthetic analysis of sophisticated 3D models [PDF]
, 2022 Magnetorotational supernovae are a rare type of core-collapse supernovae where the magnetic field and rotation play a central role in the dynamics of the explosion.
M. Reichert +5 more
semanticscholar +1 more source
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant [PDF]
, 1998 We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 ≤ z ≤ 0.62. The luminosity distances of these objects are determined by methods that employ relations between SN Ia luminosity and light curve ...
A. Riess +20 more
semanticscholar +2 more sources
Can local inhomogeneity of the Universe explain the accelerating expansion?
Open Astronomy, 2022 This paper discusses the disordering of the principle of cosmology on a small scale, i.e. the possibility of interpreting the observational data of type Ia Supernovae (SNe Ia) through the inhomogeneity and anisotropy of the Universe. The expansion of the
Turaev Sobir, Nuritdinov Salakhutdin
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