Zobrazeno 1 - 10
of 470
pro vyhledávání: '"Janka, H. T."'
Autor:
Orlando, S., Miceli, M., Patnaude, D. J., Plucinsky, P. P., Lee, S. -H., Badenes, C., Janka, H. -T., Wongwathanarat, A., Raymond, J., Sasaki, M., Churazov, E., Khabibullin, I., Bocchino, F., Castro, D., Millard, M.
(Abridged) Core-collapse supernova remnants (SNRs) display complex morphologies and asymmetries, reflecting anisotropies from the explosion and early interactions with the circumstellar medium (CSM). Spectral analysis of these remnants can provide cr
Externí odkaz:
http://arxiv.org/abs/2408.12462
Autor:
Rho, J., Park, S. -H., Arendt, R., Matsuura, M., Milisavljevic, D., Temim, T., De Looze, I., Blair, W. P., Rest, A., Fox, O., Ravi, A. P., Koo, B. -C., Barlow, M., Burrows, A., Chevalier, R., Clayton, G., Fesen, R., Fransson, C., Fryer, C., Gomez, H. L., Janka, H. -T., Kirchschlarger, F., Laming, J. M., Orlando, S., Patnaude, D., Pavlov, G., Plucinsky, P., Posselt, B., Priestley, F., Raymond, J., Sartorio, N., Schmidt, F., Slane, P., Smith, N., Sravan, N., Vink, J., Weil, K., Wheeler, J., Yoon, S. C.
We present JWST NIRCam (F356W and F444W filters) and MIRI (F770W) images and NIRSpec- IFU spectroscopy of the young supernova remnant Cassiopeia A (Cas A). We obtained the data as part of a JWST survey of Cas A. The NIRCam and MIRI images map the spa
Externí odkaz:
http://arxiv.org/abs/2406.03685
Theoretically predicted yields of elements created by the rapid neutron capture (r-) process carry potentially large uncertainties associated with incomplete knowledge of nuclear properties and approximative hydrodynamical modelling of the matter eje
Externí odkaz:
http://arxiv.org/abs/2207.07421
Publikováno v:
A&A 668, A79 (2022)
Magnetars are isolated young neutron stars characterized by the most intense magnetic fields known in the universe. The origin of their magnetic field is still a challenging question. In situ magnetic field amplification by dynamo action is a promisi
Externí odkaz:
http://arxiv.org/abs/2206.01269
Autor:
Orlando, S., Wongwathanarat, A., Janka, H. -T., Miceli, M., Nagataki, S., Ono, M., Bocchino, F., Vink, J., Milisavljevic, D., Patnaude, D. J., Peres, G.
Publikováno v:
A&A 666, A2 (2022)
Observations of the SNR Cassiopeia A (Cas A) show asymmetries in the reverse shock that cannot be explained by models describing a remnant expanding through a spherically symmetric wind of the progenitor star. We investigate whether a past interactio
Externí odkaz:
http://arxiv.org/abs/2202.01643
Publikováno v:
A&A 656, A61 (2021)
Following our recent work on Type II supernovae (SNe), we present a set of 1D nonlocal thermodynamic equilibrium radiative transfer calculations for nebular-phase Type Ibc SNe starting from state-of-the-art explosion models with detailed nucleosynthe
Externí odkaz:
http://arxiv.org/abs/2109.12350
We present a coherent study of the impact of neutrino interactions on the r-process element nucleosynthesis and the heating rate produced by the radioactive elements synthesised in the dynamical ejecta of neutron star-neutron star (NS-NS) mergers. We
Externí odkaz:
http://arxiv.org/abs/2109.02509
Publikováno v:
A&A 652, A64 (2021)
We present a set of nonlocal thermodynamic equilibrium steady-state calculations of radiative transfer for one-year old type II supernovae (SNe) starting from state-of-the-art explosion models computed with detailed nucleosynthesis. This grid covers
Externí odkaz:
http://arxiv.org/abs/2105.13029
Neutron star (NS) merger ejecta offer a viable site for the production of heavy r-process elements with nuclear mass numbers A >140. The crucial role of fission recycling is responsible for the robustness of this site against many astrophysical uncer
Externí odkaz:
http://arxiv.org/abs/2102.03686
Autor:
Orlando, S., Wongwathanarat, A., Janka, H. -T., Miceli, M., Ono, M., Nagataki, S., Bocchino, F., Peres, G.
The structure and morphology of supernova remnants (SNRs) reflect the properties of the parent supernovae (SNe) and the characteristics of the inhomogeneous environments through which the remnants expand. Linking the morphology of SNRs to anisotropie
Externí odkaz:
http://arxiv.org/abs/2012.13630