Results 41 to 50 of about 108,040 (211)

Microvascular Health as a Key Determinant of Organismal Aging

Advanced Science, EarlyView.
This review spotlights the emerging field of vascular aging, providing a comprehensive and critical overview of the molecular processes and clinical manifestations of vascular dysfunction during aging. By combining basic angioscience concepts with a critical analysis of innovative pre‐clinical aging models and lifestyle interventions, it offers a ...
Mattia Cenciarini, Andrea Uccelli, Francesca Mangili, Myriam Grunewald, Simone Bersini   +4 more
wiley   +1 more source

The Physics of Core-Collapse Supernovae: Explosion Mechanism and Explosive Nucleosynthesis

Universe
Recent developments in multi-dimensional simulations of core-collapse supernovae have considerably improved our understanding of this complex phenomenon.
Luca Boccioli, Lorenzo Roberti
doaj   +1 more source

The Deepest Supernova Search is Realized in the Hubble Ultra Deep Field Survey

, 2005
The Hubble Ultra Deep Field Survey has not only provided the deepest optical and near infrared views of universe, but has enabled a search for the most distant supernovae to z~2.2.
Abdul-Aziz H., Adam G. Riess, Cappellaro E., Dahlen T., Hardin D., Louis-Gregory Strolger   +5 more
core   +2 more sources

Physics with Supernovae [PDF]

, 2002
Core-collapse supernovae (SNe) are powerful neutrino sources and as such important targets for the growing array of neutrino observatories. We review the current status of SN theory and the expected characteristics of the neutrino signal. After recalling
Abazajian, Ahrens, Alekseev, Alekseev, Alekseev, Alford, Barger, Beacom, Beacom, Beacom, Berezhiani, Bethe, Bionta, Boyd, Brown, Burrows, Burrows, Cadonati, Caldwell, Cappellaro, Carter, Cervera, Chiu, Cullen, Dighe, Dutta, Falk, Font, Freund, Fuller, Fuller, Georg G. Raffelt, Hanhart, Hannestad, Hannestad, Hartmann, Hirata, Hong, Janka, Janka, Jegerlehner, Kaplinghat, Lai, Loredo, Lunardini, Lunardini, M. Lobashev, Mezzacappa, Minakata, Perlmutter, Piepke, Pons, Raffelt, Raffelt, Raffelt, Raffelt, Rampp, Riess, Schramm, Shiozawa, Smirnov, Smith, Strom, Takahashi, Takahashi, Tammann, Tegmark, Totani, Totani, Totani, Vagins, van den Bergh, Virtue, Weber, Weinheimer, Wilson, Wolfenstein, Woosley, Zhang   +78 more
core   +2 more sources

Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity

Annalen der Physik, EarlyView.
This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley   +1 more source

Red Supergiants as Supernova Progenitors

Galaxies
The inevitable fate of massive stars in the initial mass range of ≈8–30M⊙ in the red supergiant (RSG) phase is a core-collapse supernova (SN) explosion, although some stars may collapse directly to a black hole.
Schuyler D. Van Dyk
doaj   +1 more source

Critical Tests of Leading Gamma Ray Burst Theories

Universe, 2022
It has been observationally established that supernovae (SNe) of Type Ic produce long duration gamma-ray bursts (GRBs) and that neutron star mergers generate short hard GRBs.
Shlomo Dado, Arnon Dar, Alvaro De Rújula   +2 more
doaj   +1 more source

Radial Velocity Monitoring and Analysis of Gaia Astrometry of Selected Intermediate Mass Stars to Constrain Their Multiplicity Status

Astronomische Nachrichten, EarlyView.
ABSTRACT We present new radial velocity measurements of 13 selected intermediate mass stars (2–6 M⊙). The measurements were performed between 29 April and 6 September 2024 at the University Observatory Jena using the échelle spectrograph FLECHAS. The radial velocity of eight stars was found to be constant during our spectroscopic monitoring, namely: 17
J. Bätz, M. Mugrauer, K.‐U. Michel, J. Reichert, A. Tschirschky, L. Pietsch, F. Edelmann, R. Neuhäuser   +7 more
wiley   +1 more source

Evaluating machine learning models for supernova gravitational wave signal classification

Machine Learning: Science and Technology
We investigate the potential of using gravitational wave (GW) signals from rotating core-collapse supernovae to probe the equation of state (EOS) of nuclear matter.
Y Sultan Abylkairov, Matthew C Edwards, Daniil Orel, Ayan Mitra, Bekdaulet Shukirgaliyev, Ernazar Abdikamalov   +5 more
doaj   +1 more source

Aluminum versus Gallium: Differences in Bis(bis(trimethylsilyl)methyl) Element Halides, Hydrides, and Oxygen‐Bridged E/P Frustrated Lewis Pairs

ChemistryEurope, EarlyView.
Reacting Bis2GaBr (Bis = CH(SiMe3)2) with Bis2AlH selectively yields Bis2GaH, a monomeric hydride in solution, characterized by diffusion ordered spectroscopy NMR, infrared spectroscopy and indirectly via hydrogallation. A one‐pot route enables frustrated Lewis pairs Bis2EOPtBu2 (E = Al, Ga), with the gallium analog splitting H2 and showing a dynamic ...
Julian Buth, Maximilian J. Klingsiek, Yury V. Vishnevskiy, Andreas Mix, Jan-Hendrik Lamm, Beate Neumann, Hans-Georg Stammler, Norbert Werner Mitzel   +7 more
wiley   +1 more source