Monte Carlo radiative transfer for the nebular phase of Type Ia supernovae

Autor: Catherine Ramsbottom, A. S. Michel, Kate Maguire, Christine E. Collins, Connor Ballance, N. B. Tyndall, Stuart A. Sim, Mattia Bulla, Friedrich K. Röpke, Ivo R. Seitenzahl, Luke J. Shingles, Markus Kromer

Publikováno v: Shingles, L J, Sim, S A, Kromer, M, Maguire, K, Bulla, M, Collins, C, Ballance, C P, Michel, A S, Ramsbottom, C A, Roepke, F K, Seitenzahl, I R & Tyndall, N B 2019, ' Monte Carlo radiative transfer for the nebular phase of Type Ia supernovae ', Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/stz3412

We extend the range of validity of the ARTIS 3D radiative transfer code up to hundreds of days after explosion, when Type Ia supernovae are in their nebular phase. To achieve this, we add a non-local thermodynamic equilibrium (non-LTE) population and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f014b370957b8ac4f10bb84ebf9f85c2

Valence and L-shell photoionization of Cl-like argon using R-matrix techniques

Autor: Catherine Ramsbottom, Alan Hibbert, Connor Ballance, N. B. Tyndall

Publikováno v: Monthly Notices of the Royal Astronomical Society. 456:366-373

Photoionization cross sections are obtained using the relativistic Dirac Atomic R-matrix Codes (DARC) for all valence and L-shell energy ranges between 27-270eV. A total of 557 levels arising from the dominant configurations 3s$^2$3p$^4$, 3s3p$^5$, 3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48b0ebbeb13d45858a34fd844c08cf46
https://doi.org/10.1093/mnras/stv2637

Photoionization of Co$^{+}$ and electron-impact excitation of Co$^{2+}$ using the Dirac R-matrix method

Autor: Connor Ballance, N. B. Tyndall, Alan Hibbert, Catherine Ramsbottom

Modelling of massive stars and supernovae (SNe) plays a crucial role in understanding galaxies. From this modelling we can derive fundamental constraints on stellar evolution, mass-loss processes, mixing, and the products of nucleosynthesis. Proper a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63ed749e13b77ce282c7c573e50d2f9a

Photoionization cross sections for O-like S IX: a Breit–PauliR-matrix calculation

Autor: Gary J. Ferland, Catherine Ramsbottom, Alan Hibbert, N. B. Tyndall

Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 48:155204

In this paper we present photoionization cross sections for the lowest five states of O-like S IX (1s22s22p4 3P0,1,2, 1D2, 1S0). The relativistic Breit–Pauli R-matrix codes were utilized including all terms of the 2s22p3, 2s2p4, 2p5, 2s22p23s, 3p,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa3556eacc7d96ec9db545706ad87134
https://doi.org/10.1088/0953-4075/48/15/155204

Photoionization of Cl–like Argon using the Breit–Pauli R–matrix method.

Autor: N B Tyndall, C A Ramsbottom, A Hibbert

Publikováno v: Journal of Physics: Conference Series; Jul2015, Vol. 635 Issue 9, p1-1, 1p