Zobrazeno 1 - 10
of 4 016
pro vyhledávání: '"P, Heger"'
We present synthetic light curves and spectra from three-dimensional (3D) Monte Carlo radiative transfer simulations based on a 3D core-collapse supernova explosion model of an ultra-stripped $3.5\,\mathrm{M}_{\odot}$ progenitor. Our calculations pre
Externí odkaz:
http://arxiv.org/abs/2410.20829
We study the sensitivity of presupernova evolution and supernova nucleosynthesis yields of massive stars to variations of the initial composition. We use the solar abundances from Lodders (2009), and compute two different initial stellar compositions
Externí odkaz:
http://arxiv.org/abs/2410.16594
Autor:
Héger, Tamás, Nagy, Zoltán Lóránt
Let $q$ be a prime power and $k$ be a natural number. What are the possible cardinalities of point sets ${S}$ in a projective plane of order $q$, which do not intersect any line at exactly $k$ points? This problem and its variants have been investiga
Externí odkaz:
http://arxiv.org/abs/2409.14213
Publikováno v:
ApJL, 972, L18 (2024)
Recent neutron star surface observations corroborate a long-standing theory that neutron stars may be accelerated over extended periods after their birth. We analyze how these prolonged rocket-like accelerations, combined with rapid birth kicks, impa
Externí odkaz:
http://arxiv.org/abs/2407.20967
Publikováno v:
J. Chem. Phys. 161, 131501 (2024)
In molecular physics, it is often necessary to average over the orientation of molecules when calculating observables, in particular when modelling experiments in the liquid or gas phase. Evaluated in terms of Euler angles, this is closely related to
Externí odkaz:
http://arxiv.org/abs/2407.17434
Supernova theory has struggled to explain the lightest known neutron star candidate with an accurate mass determination, the $1.174\mathrm{M}_\odot$ companion in the eccentric compact binary system J0453+1559. To improve the theoretical lower limit f
Externí odkaz:
http://arxiv.org/abs/2407.08407
We compute the $^{63}$Ga(p,$\gamma$)$^{64}$Ge and $^{64}$Ge(p,$\gamma$)$^{65}$As thermonuclear reaction rates using the latest experimental input supplemented with theoretical nuclear spectroscopic information. The experimental input consists of the
Externí odkaz:
http://arxiv.org/abs/2406.14624
Autor:
Heger, Marec W., Reich, Daniel M.
Photoelectron circular dichroism (PECD) originates from the interplay between a molecule's chiral nuclear scaffold and a circularly polarized ionizing laser field. It is one of the most sensitive characterization techniques for the chirality of molec
Externí odkaz:
http://arxiv.org/abs/2405.13608
We present a detailed analysis of the dynamics of proto-compact star (PCS) convection and the core ${}^2\!g_1$-mode in core-collapse supernovae based on general relativistic 2D and 3D neutrino hydrodynamics simulations. Based on 2D simulations, we de
Externí odkaz:
http://arxiv.org/abs/2405.01449
In our Galactic Center, about 10,000 to 100,000 stars are estimated to have survived tidal disruption events, resulting in partially disrupted remnants. These events occur when a supermassive black hole (SMBH) tidally interacts with a star, but not e
Externí odkaz:
http://arxiv.org/abs/2403.04211