Results 71 to 80 of about 140,146 (287)

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

Multi-Wavelength Observations and Modeling of Loop I

Galaxies, 2018
The article aims to overview the origin and current dynamical state of a giant structure on the northern galactic sky—the radio Loop I extending from ≈ − 45 ∘ to ≈ + 45 ∘ in longitudes and up to ≈ 80 ...
Yuri Shchekinov
doaj   +1 more source

Spectra and Light Curves of Failed Supernovae

, 2009
Astronomers have proposed a number of mechanisms to produce supernova explosions. Although many of these mechanisms are now not considered primary engines behind supernovae, they do produce transients that will be observed by upcoming ground-based ...
Brown, Peter J., Bufano, Filomena, Dahl, Jon A., Fontes, Christopher J., Frey, Lucille H., Fryer, Chris L., Holland, Stephen T., Hungerford, Aimee L., Immler, Stefan, Mazzali, Paolo, Milne, Peter A., Scannapieco, Evan, Weinberg, Nevin, Young, Patrick A.   +13 more
core   +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

Estimation of Host Galaxy Extinction for SNe Ia

Galaxies
Type Ia supernovae are used as fundamental probes of the cosmological parameters, based on a tight empirical relation between their peak luminosity and the width of their light curve. However, it has been recognized that SNe Ia are not “standard” candles,
Oleg Malkov, Alexey Sytov, Gang Zhao, Zehao Zhong   +3 more
doaj   +1 more source

EXPLOSIVE NUCLEOSYNTHESIS AT STRONG STELLAR MAGNETIZATION

Odessa Astronomical Publications, 2014
Synthesis of iron group nuclides is considered for the ultra-magnetized astrophysical plasma in supernovae. Magnetic modification of nuclear structure is shown to shift maximum of nucleosynthesis products towards smaller mass numbers enhancing titanium ...
V. N. Kondratyev, Yu. V. Korovina
doaj   +1 more source

An optical supernova associated with the X-ray flash XRF 060218

, 2006
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities.
A. J. Castro-Tirado, A. Levan, A. S. Fruchter, A. V. Filippenko, AM Soderberg, AM Soderberg, AV Filippenko, BE Cobb, C. Dumas, C. Kouveliotou, C. Ledoux, D Malesani, D. A. Kann, D. Baade, D. N. Sauer, D. S. Wong, DJ Schlegel, DN Sauer, E. Cappellaro, E. Palazzi, E. Pian, E. Ramirez-Ruiz, E. Rol, E. W. Guenther, F. Frontera, F. Patat, H Tomita, J Deng, J Granot, J Hjorth, J. Deng, J. Greiner, J. Hjorth, J. P. U. Fynbo, J. Sollerman, JA Cardelli, JPU Fynbo, K Maeda, K. Kawabata, K. Maeda, K. Nomoto, KZ Stanek, L. Amati, L. Nicastro, L. Wang, M Modjaz, N Mirabal, N Tominaga, N. Masetti, N. R. Tanvir, O. Hainaut, P. A. Mazzali, P. Ferrero, P. M. Vreeswijk, P. Møller, P. O'Brien, PA Mazzali, PA Mazzali, R. A. M. J. Wijers, R. J. Foley, R. Starling, S. E. Woosley, S. Ellison, S. Klose, SE Woosley, SE Woosley, SY Sazonov, TJ Galama, W. Li   +68 more
core   +2 more sources

Establishing Indium in Frustrated Lewis Pair Chemistry: From Synthesis to Catalytic Applications

ChemistryEurope, EarlyView.
Not that hard: The effects of chemical hardness of the soft FLP tBu2InCH2PtBu2 and its pyridine‐adduct tBu2In(py)CH2PtBu2 were examined in adduct formation reactions toward H2, CO2, and CS2. The frustrated Lewis pair shows catalytic activity in the reduction of CO2 with pinacolborane.
Daniel N. Heuer, Jan‐Hendrik Lamm, Hans‐Georg Stammler, Beate Neumann, Andreas Mix, Yury V. Vishnevskiy, Norbert W. Mitzel   +6 more
wiley   +1 more source

Radio Supernovae

Universe
Supernovae (SNe), the catastrophic end of stars’ lives, are among the most energetic phenomena in the universe. Mapping the aftermath of the explosions to the properties of pre-SN stars is challenging due to the lack of knowledge about the evolution of ...
Esha Kundu
doaj   +1 more source

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