Results 61 to 70 of about 127,486 (216)

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

The Rise Times of High and Low Redshift Type Ia Supernovae are Consistent [PDF]

, 2000
We present a self-consistent comparison of the rise times for low- and high-redshift Type Ia supernovae. Following previous studies, the early light curve is modeled using a t-squared law, which is then mated with a modified Leibundgut template light ...
Berntsen J., Ceolin M. B., Goldhaber G., Greg Aldering, Groom D., Meikle W. P. S., Patat F., Peter Nugent, Robert Knop   +8 more
core   +4 more sources

Physics of Core-Collapse Supernovae in Three Dimensions: a Sneak Preview [PDF]

, 2016
Nonspherical mass motions are a generic feature of core-collapse supernovae, and hydrodynamic instabilities play a crucial role in the explosion mechanism.
H. Janka, T. Melson, A. S. M. Astrophysics, Garching, Physik Dept., Tum   +5 more
semanticscholar   +1 more source

Impact of Newly Measured Nuclear Reaction Rates on ²⁶Al Ejected Yields from Massive Stars

Universe
Over the last three years, the rates of all the main nuclear reactions involving the destruction and production of 26Al in stars (26Al(n, p)26Mg, 26Al(n, α)23Na, 26Al(p, γ)27Si and 25Mg(p, γ)26Al) have been re-evaluated thanks to new high-precision ...
Umberto Battino, Lorenzo Roberti, Thomas V. Lawson, Alison M. Laird, Lewis Todd   +4 more
doaj   +1 more source

Anisotropic pressure effect on strongly magnetized white dwarfs using quasi-local equation of state

Journal of Scientific Research in Science, 2023
This work addresses the effect of anisotropic pressure on the strong magnetized white dwarf. A quasi-local equation of state is used to formulate the anisotropic factor inside the star. We use the assumption that the magnetic field is constant and strong
Mohamed Moussa
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

A Fundamental Test of the Nature of Dark Matter [PDF]

, 1999
Dark matter may consist of weakly interacting elementary particles or of macroscopic compact objects. We show that the statistics of the gravitational lensing of high redshift supernovae strongly discriminate between these two classes of dark matter ...
Joseph Silk, Patat F., R. Benton Metcalf
core   +2 more sources

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

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

A Review of the Theory of Galactic Winds Driven by Stellar Feedback

Galaxies, 2018
Galactic winds from star-forming galaxies are crucial to the process of galaxy formation and evolution, regulating star formation, shaping the stellar mass function and the mass-metallicity relation, and enriching the intergalactic medium with metals ...
Dong Zhang
doaj   +1 more source