Results 11 to 20 of about 127,486 (216)

Hydrodynamics of core-collapse supernovae and their progenitors [PDF]

open access: yesLiving Reviews in Solar Physics, 2020
Multi-dimensional fluid flow plays a paramount role in the explosions of massive stars as core-collapse supernovae. In recent years, three-dimensional (3D) simulations of these phenomena have matured significantly.
Bernhard Müller
exaly   +2 more sources

Two Dynamical Scenarios for Binned Master Sample Interpretation [PDF]

open access: yesEntropy
We 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
doaj   +2 more sources

On the progenitors of Type Ia supernovae [PDF]

open access: yesPhysics Reports, 2018
We review all the models proposed for the progenitor systems of Type Ia supernovae and discuss the strengths and weaknesses of each scenario when confronted with observations.
Paolo A Mazzali
exaly   +2 more sources

The diversity of type Ia supernovae from broken symmetries

open access: yesNature, 2009
Type Ia supernovae result when carbon-oxygen white dwarfs in binary systems accrete mass from companion stars, reach a critical mass, and explode. The near uniformity of their light curves makes these supernovae good standard candles for measuring cosmic
Kasen, Daniel   +2 more
exaly   +3 more sources

On the use of the local prior on the absolute magnitude of Type Ia supernovae in cosmological inference [PDF]

open access: yes, 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]

open access: yesPhysical 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]

open access: yes, 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]

open access: yes, 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 access: yesOpen 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
doaj   +1 more source

On the rate of core collapse supernovae in the milky way [PDF]

open access: yesNew Astronomy, 2020
Several large neutrino telescopes, operating at various sites around the world, have as their main objective the first detection of neutrinos emitted by a gravitational collapse in the Milky Way.
K. Rozwadowska   +2 more
semanticscholar   +1 more source

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