SS
S. A. Sim
astro-ph.HEastro-ph.SRastro-ph.COastro-ph.GAastro-ph.IMastro-phphysics.atom-phnucl-thastro-ph.EPhep-ph
On Valency
published · living versionsW_j9fhen33·v1 · currentpublished
The optical light curve of GRB 221009A: the afterglow and the emerging supernova
with M. D. Fulton, S. J. Smartt, L. Rhodes, M. E. Huber +44
1 version
W_waqfzrqh·v1published
W_y99ee8et·v1published
Preprints & journals
159 papers in the corpus · 2001–2026SPECULATE: A synthetic spectral library, emulator and fitting package for accretion disc winds -- Infrastructure and application to CVs2610.07364v1 · Austen G. W. Wallis, Christian Knigge, James H. Matthews et al.2026 · 0 citationsarXiv
Ce II-IV emission in kilonovae with R-matrix collision strengths and distorted wave recombination rates2609.15900v1 · Leo Patrick Mulholland, Niamh Ferguson, Luke J. Shingles et al.2026 · 0 citationsarXiv
Late-time emission-line profiles from kilonova models2607.10818v1 · S. A. Sim, O. Just, Z. Xiong et al.2026 · 0 citationsarXiv
Observational signatures of thermonuclear electron-capture supernovae -- Ne II line strengthening and color evolution as traces of the explosion mechanism2606.05119v1 · Alexander Holas, Fionntan P. Callan, Samuel W. Jones et al.2026 · 0 citationsarXiv
Quenching of X-ray emission in little red dots by both Compton-thick gas and high accretion rates2605.15263v2 · Albert Sneppen, Darach Watson, James H. Matthews et al.2026 · 0 citationsarXiv
Exploring the diversity of kilonovae with 3D radiative transfer I. The polar direction2604.22671v1 · Christine E. Collins, Luke J. Shingles, Vimal Vijayan et al.2026 · 0 citationsarXiv
Paschen Jumps in Little Red Dots: Evidence for Nebular Continua2604.09399v1 · Albert Sneppen, James H. Matthews, Darach Watson et al.2026 · 0 citationsarXiv
Strontium and helium in the kilonova AT2017gfo: Origin of the 1{\mu}m feature constrained via NLTE calculations2604.05812v1 · Aayush Arya, Rasmus Damgaard, Albert Sneppen et al.2026 · 1 citationarXiv
Radiation-ionization hydrodynamic simulations of AGN line-driven winds lead to transient shielding and BAL/UFO signatures2603.23642v1 · Nicolas Scepi, Christian Knigge, Amin Mosallanezhad et al.2026 · 3 citationsarXiv
Little red dots as young supermassive black holes in dense ionized cocoons.41535486 · Rusakov, V, Watson, D, Nikopoulos, G P et al.2026 · 77 citationsNature. 2026;649(8097):574-579
The critical role of clumping in line-driven disc winds2512.05029v1 · Amin Mosallanezhad, Christian Knigge, Nicolas Scepi et al.2025 · 3 citationsarXiv
Electron impact excitation of Te IV and V and Level Resolved R-matrix Photoionization of Te I - IV with application to modelling of AT2017gfo2510.17357v1 · Leo P. Mulholland, Catherine A. Ramsbottom, Connor P. Ballance et al.2025 · 5 citationsarXiv
Light Travel Time Effects in Kilonova Models2510.09261v2 · F. McNeill, S. A. Sim, C. E. Collins et al.2025 · 2 citationsarXiv
A Diagnostic Kit for Optical Emission Lines Shaped by Accretion Disc Winds2509.02858v1 · Austen G. W. Wallis, Christian Knigge, James H. Matthews et al.2025 · 2 citationsarXiv
Trans-Fe elements from Type Ia Supernovae. I. Heavy element nucleosynthesis during the formation of near-Chandrasekhar white dwarfs2508.15079v1 · Umberto Battino, James Keegans, Megan Allen et al.2025 · 0 citationsA&A 703, A44 (2025)
Multidimensional Nebular-Phase Calculations of Dynamically-Driven Double-Degenerate Double-Detonation Models for Type Ia Supernovae2507.05000v2 · J. M. Pollin, S. A. Sim, L. J. Shingles et al.2025 · 6 citationsMon Not R Astron Soc (2026)
Monte-Carlo radiation hydrodynamic simulations of line-driven disc winds: relaxing the isothermal approximation2507.05085v1 · Amin Mosallanezhad, Christian Knigge, Nicolas Scepi et al.2025 · 7 citationsarXiv
Effect of positronium on the -ray spectra and energy deposition in Type Ia supernovae2505.22992v1 · Anirban Dutta, Andrew Fullard, Wolfgang Kerzendorf et al.2025 · 0 citationsarXiv
The asymmetry of white dwarf double detonations and the observed scatter around the Phillips relation2505.09445v1 · Alexander Holas, Friedrich K. Roepke, Rudiger Pakmor et al.2025 · 2 citationsA&A 698, A269 (2025)
Electron-Impact Excitation of Zirconium I-III in support of Neutron Star Merger Diagnostics2503.16359v1 · M. McCann, C. P. Ballance, F. McNeill et al.2025 · 6 citationsarXiv
NLTE spectral modelling for a carbon-oxygen and helium white-dwarf merger as a Ca-rich transient candidate2503.12105v2 · F. P. Callan, A. Holas, J. Mor'an-Fraile et al.2025 · 2 citationsA&A 702, A29 (2025)
On the use of the Axelrod formula for thermal electron collisions in Astrophysical Modelling2503.05489v2 · Leo P. Mulholland, Steven J. Bromley, Connor P. Ballance et al.2025 · 0 citationsarXiv
Calcium in a supernova remnant as a fingerprint of a sub-Chandrasekhar-mass explosion.40979884 · Das, Priyam, Seitenzahl, Ivo R, Ruiter, Ashley J et al.2025 · 15 citationsNature astronomy. 2025;9(9):1356-1365
Luminosity predictions for the first three ionisation stages of W, Pt and Au to probe potential sources of emission in kilonova2411.16476v2 · M. McCann, L. P. Mulholland, Z. Xiong et al.2024 · 5 citationsarXiv
Non-LTE radiative transfer simulations: Improved agreement of the double detonation with normal Type Ia supernovae2411.11643v1 · Christine E. Collins, Luke J. Shingles, Stuart A. Sim et al.2024 · 8 citationsarXiv
No rungs attached: A distance-ladder free determination of the Hubble constant through type II supernova spectral modelling2411.04968v1 · Christian Vogl, Stefan Taubenberger, G'eza Csornyei et al.2024 · 30 citationsA&A 702, A41 (2025)
Helium as an Indicator of the Neutron-Star Merger Remnant Lifetime and its Potential for Equation of State Constraints2411.03427v2 · Albert Sneppen, Oliver Just, Andreas Bauswein et al.2024 · 8 citationsarXiv
Synthetic Light Curves and Spectra for the Photospheric Phase of a 3D Stripped-Envelope Supernova Explosion Model2410.20829v2 · Thomas Maunder, Fionntan P. Callan, Stuart A. Sim et al.2024 · 4 citationsarXiv
SIROCCO: A Publicly Available Monte Carlo Ionization and Radiative Transfer Code for Astrophysical Outflows2410.19908v2 · James H. Matthews, Knox S. Long, Christian Knigge et al.2024 · 15 citationsMNRAS (2025), Volume 536, Issue 1, Pages 879-904
Collisional and Radiative Data for Tellurium ions in Kilonovae modelling and Laboratory Benchmarks2410.05958v1 · Leo Patrick Mulholland, Fiona McNeill, Stuart A. Sim et al.2024 · 9 citationsarXiv
Exploring the range of impacts of helium in the spectra of double detonation models for Type Ia supernovae2408.03048v2 · F. P. Callan, C. E. Collins, S. A. Sim et al.2024 · 7 citationsMonthly Notices of the Royal Astronomical Society, Volume 539, Issue 2, May 2025, Pages 1404 to 1413
On the fate of the secondary white dwarf in double-degenerate double-detonation Type Ia supernovae -- II. 3D synthetic observables2408.00917v1 · J. M. Pollin, S. A. Sim, R. Pakmor et al.2024 · 17 citationsarXiv
Helium features are inconsistent with the spectral evolution of the kilonova AT2017gfo2407.12907v2 · Albert Sneppen, Rasmus Damgaard, Darach Watson et al.2024 · 8 citationsA&A 692, A134 (2024)
New Radiative and Collisional Atomic Data for Sr {\sc ii} and Y {\sc ii} with application to Kilonova modelling2407.01398v1 · Leo Mulholland, Niall McElroy, Fiona McNeill et al.2024 · 11 citationsarXiv
SN 2023zaw: the low-energy explosion of an ultra-stripped star2405.13596v2 · T. Moore, J. H. Gillanders, M. Nicholl et al.2024 · 5 citationsarXiv
Including a Luminous Central Remnant in Radiative Transfer Simulations for Type Iax Supernovae2403.15084v2 · F. P. Callan, S. A. Sim, C. E. Collins et al.2024 · 4 citationsMonthly Notices of the Royal Astronomical Society, Volume 530, Issue 2, May 2024, Pages 1457 to 1473
Type Ia supernova explosion models are inherently multidimensional2402.11010v2 · R. Pakmor, I. R. Seitenzahl, A. J. Ruiter et al.2024 · 18 citationsA&A 686, A227 (2024)
State-of-the-art simulations of line-driven accretion disc winds: realistic radiation-hydrodynamics leads to weaker outflows2312.06042v1 · Nick Higginbottom, Nicolas Scepi, Christian Knigge et al.2023 · 19 citationsarXiv
SN 2022jli: a type Ic supernova with periodic modulation of its light curve and an unusually long rise2309.12750v1 · Moore T., Smartt S.J., Nicholl M. et al.2023 · 24 citationsarXiv
Towards inferring the geometry of kilonovae2309.05579v2 · Christine E. Collins, Luke J. Shingles, Andreas Bauswein et al.2023 · 15 citationsarXiv
Unprecedented early flux excess in the hybrid 02es-like type Ia supernova 2022ywc indicates interaction with circumstellar material2308.06019v2 · Shubham Srivastav, T. Moore, M. Nicholl et al.2023 · 16 citationsarXiv
Helium as a signature of the double detonation in Type Ia supernovae2307.08660v1 · Christine E. Collins, Stuart A. Sim, Luke. J. Shingles et al.2023 · 14 citationsarXiv
Self-consistent 3D radiative transfer for kilonovae: directional spectra from merger simulations2306.17612v6 · Luke J. Shingles, Christine E. Collins, Vimal Vijayan et al.2023 · 46 citations2023, ApJL, 954, L41
Modelling the spectra of the kilonova AT2017gfo -- II: Beyond the photospheric epochs2306.15055v2 · J. H. Gillanders, S. A. Sim, S. J. Smartt et al.2023 · 37 citationsarXiv
Synthetic Light Curves and Spectra from a Self-Consistent 2D Simulation of an Ultra-strippped Supernova2305.17441v1 · Thomas Maunder, Bernhard Muller, Fionntan Callan et al.2023 · 5 citationsarXiv
Photometry and spectroscopy of the Type Icn supernova 2021ckj: The diverse properties of the ejecta and circumstellar matter of Type Icn SNe2303.07721v1 · T. Nagao, H. Kuncarayakti, K. Maeda et al.2023 · 18 citationsA&A 673, A27 (2023)
Spherical symmetry in the kilonova AT2017gfo/GW170817.36792736 · Sneppen, Albert, Watson, Darach, Bauswein, Andreas et al.2023 · 58 citationsNature. 2023;614(7948):436-439
The optical light curve of GRB 221009A: the afterglow and the emerging supernova2301.11170v2 · M. D. Fulton, S. J. Smartt, L. Rhodes et al.2023 · 46 citationsarXivon Valency
The luminous type Ia supernova 2022ilv and its early excess emission2211.10544v2 · Shubham Srivastav, S. J. Smartt, M. E. Huber et al.2022 · 30 citationsarXiv
StaNdaRT: A repository of standardized test models and outputs for supernova radiative transfer2209.11671v3 · St'ephane Blondin, Sergei Blinnikov, Fionntan P. Callan et al.2022 · 30 citationsA&A 668, A163 (2022)
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