Results 131 to 140 of about 127,486 (216)
Gamma-Ray Bursts: The Energy Monsters of the Universe
GalaxiesGamma-Ray Bursts(GRBs) are the most violent and energetic astrophysical phenomena, which I dare call “the Energy Monsters of the Universe”. Indeed, they show an enormous emitted isotropic energy ranging from ∼3 × 1046 erg (GRB 170817A) to ∼1055 erg (GRB ...
Franco Giovannelli
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Constraining the minimally extended varying speed of light model using time dilations
Frontiers in Astronomy and Space SciencesThe Robertson–Walker (RW) metric, derived from the cosmological principle and Weyl’s postulate, characterizes the ΛCDM cosmological model. Traditionally, in this framework, the assumption of a constant speed of light leads to specific cosmological time ...
Seokcheon Lee
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Life on Mars? The physiological perspective
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley +1 more source
Supernova search at intermediate z. I. Spectroscopic analysis
, 2004 We study 8 supernovae discovered as part of the International Time Programme (ITP) project ``Omega and Lambda from Supernovae and the Physics of Supernova Explosions'' at the European Northern Observatory (ENO). The goal of the project is to increase the
A. Balastegui +10 more
core +2 more sources
Maven: a multimodal foundation model for supernova science
Machine Learning: Science and TechnologyA common setting in astronomy is the availability of a small number of high-quality observations, and larger amounts of either lower-quality observations or synthetic data from simplified models.
Gemma Zhang +4 more
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`Pure' Supernovae and Accelerated Expansion of the Universe
, 2011 A special class of type Ia supernovae that is not subject to ordinary and additional intragalactic gray absorption and chemical evolution has been identified.
A. Aguirre +26 more
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Constraining the Initial Mass Function via Stellar Transients
UniverseThe stellar initial mass function (IMF) represents a fundamental quantity in astrophysics and cosmology describing the mass distribution of stars from low mass all the way up to massive and very massive stars. It is intimately linked to a wide variety of
Francesco Gabrielli +6 more
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An Accelerating Universe without Lambda: Delta Gravity Using Monte Carlo
Universe, 2019 A gravitational field model based on two symmetric tensors, g μ ν and g ˜ μ ν , is studied, using a Markov Chain Monte Carlo (MCMC) analysis with the most updated catalog of SN-Ia.
Jorge Alfaro +2 more
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Revealing the True Nature of Hen 2-428
Galaxies, 2018 The nucleus of Hen 2-428 is a short orbital period (4.2 h) spectroscopic binary, whose status as potential supernovae type Ia progenitor has raised some controversy in the literature.
Nicole Reindl +7 more
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On relative supernova rates and nucleosynthesis roles [PDF]
It is shown that the Ni-56-Fe-56 observed in SN 1987A argues that core collapse supernovae may be responsible for more that 50 percent of the iron in the galaxy.
Arnett, W. David +2 more
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