Výsledky vyhledávání - "Luke J Shingles"

Akademický článek

Self-consistent 3D Radiative Transfer for Kilonovae: Directional Spectra from Merger Simulations

Autor: Luke J. Shingles, Christine E. Collins, Vimal Vijayan, Andreas Flörs, Oliver Just, Gerrit Leck, Zewei Xiong, Andreas Bauswein, Gabriel Martínez-Pinedo, Stuart A. Sim

Publikováno v: The Astrophysical Journal Letters, Vol 954, Iss 2, p L41 (2023)

We present 3D radiative transfer calculations for the ejecta from a neutron star merger that include line-by-line opacities for tens of millions of bound–bound transitions, composition from an r -process nuclear network, and time-dependent thermali

Externí odkaz: https://doaj.org/article/e0679274db2f4bde805e8aa786fecdeb

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Akademický článek

The Luminous Type Ia Supernova 2022ilv and Its Early Excess Emission

Autor: Shubham Srivastav, S. J. Smartt, M. E. Huber, G. Dimitriadis, K. C. Chambers, Michael D. Fulton, Thomas Moore, F. P. Callan, James H. Gillanders, K. Maguire, M. Nicholl, Luke J. Shingles, S. A. Sim, K. W. Smith, J. P. Anderson, Thomas de Boer, Ting-Wan Chen, Hua Gao, D. R. Young

Publikováno v: The Astrophysical Journal Letters, Vol 943, Iss 2, p L20 (2023)

We present observations and analysis of the hostless and luminous Type Ia supernova 2022ilv, illustrating it is part of the 2003fg-like family, often referred to as super-Chandrasekhar (Ia-SC) explosions. The Asteroid Terrestrial-impact Last Alert Sy

Externí odkaz: https://doaj.org/article/18da7743d8ad44b0b35a2b654d79dae0

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Akademický článek

Phase Curves of Kuiper Belt Objects, Centaurs, and Jupiter-family Comets from the ATLAS Survey

Autor: Matthew M. Dobson, Megan E. Schwamb, Susan D. Benecchi, Anne J. Verbiscer, Alan Fitzsimmons, Luke J. Shingles, Larry Denneau, A. N. Heinze, Ken W. Smith, John L. Tonry, Henry Weiland, David. R. Young

Publikováno v: The Planetary Science Journal, Vol 4, Iss 4, p 75 (2023)

The Kuiper Belt objects (KBOs), the Centaurs, and the Jupiter-family comets (JFCs) form an evolutionary continuum of small outer solar system objects, and their study allows us to gain insight into the history and evolution of the solar system. Broad

Externí odkaz: https://doaj.org/article/4b7fabd13245415bb46f2f003f125973

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The luminous type la supernova 2022ilv and its early excess emission

Publikováno v: Srivastav, S, Smartt, S J, Huber, M E, Dimitriadis, G, Chambers, K C, Fulton, M D, Moore, T, Callan, F P, Gillanders, J H, Maguire, K, Nicholl, M, Shingles, L J, Sim, S A, Smith, K W, Anderson, J P, de Boer, T, Chen, T-W, Gao, H & Young, D R 2023, ' The luminous type la supernova 2022ilv and its early excess emission ', The Astrophysical Journal Letters, vol. 943, no. 2, L20 . https://doi.org/10.3847/2041-8213/acb2ce
Astrophysical Journal Letters

We present observations and analysis of the host-less and luminous type Ia supernova 2022ilv, illustrating it is part of the 2003fg-like family, often referred to as super-Chandrasekhar (Ia-SC) explosions. The ATLAS light curve shows evidence of a sh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::014d914856ef1d6ad320c895cdd46dae
https://pure.qub.ac.uk/en/publications/ac2daedc-e464-4cc3-8712-d7de1381a0b9

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On the fate of the secondary white dwarf in double-degenerate double-detonation Type Ia supernovae

Autor: R Pakmor, F P Callan, C E Collins, S E de Mink, A Holas, W E Kerzendorf, M Kromer, P G Neunteufel, John T O’Brien, F K Röpke, A J Ruiter, I R Seitenzahl, Luke J Shingles, S A Sim, S Taubenberger

Publikováno v: Pakmor, R, Callan, F P, Collins, C E, de Mink, S E, Holas, A, Kerzendorf, W E, Kromer, M, Neunteufel, P G, O’Brien, J T, Röpke, F K, Ruiter, A J, Seitenzahl, I R, Shingles, L J, Sim, S A & Taubenberger, S 2022, ' On the fate of the secondary white dwarf in double-degenerate double-detonation Type Ia supernovae ', Monthly Notices of the Royal Astronomical Society, vol. 517, no. 4, pp. 5260–5271 . https://doi.org/10.1093/mnras/stac3107
Monthly notices of the Royal Astronomical Society 517(4), 5260-5271 (2022). doi:10.1093/mnras/stac3107

The progenitor systems and explosion mechanism of Type Ia supernovae are still unknown. Currently favoured progenitors include double-degenerate systems consisting of two carbon-oxygen white dwarfs with thin helium shells. In the double-detonation sc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5220ac2c7bcae22e07034587a155625c
https://pure.qub.ac.uk/en/publications/f4105f6c-e243-42d8-8914-37a3d77d8f1f

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Using Phase Curves from ATLAS to Search for Cometary Activity in the Solar System

Autor: Matthew M. Dobson, Megan E. Schwamb, Susan D. Benecchi, Anne J. Verbiscer, Alan Fitzsimmons, Luke J. Shingles, Larry Denneau, Aren N. Heinze, Ken W. Smith, John L. Tonry, Henry Weiland, David R. Young

The phase curve of a small Solar System object shows the change in the object’s reflectance at different Sun-object-observer (phase) angles, and the shape of the phase curve is determined by the physical properties of the object’s surface. Analys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15b59e801756be3a2efc863398e2d9d0
https://doi.org/10.5194/epsc2022-878

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Modelling the ionisation state of Type Ia supernovae in the nebular-phase

Autor: Luke J Shingles, Andreas Flörs, Stuart A Sim, Christine E Collins, Friedrich K Röpke, Ivo R Seitenzahl, Ken J Shen

Publikováno v: Shingles, L J, Flörs, A, Sim, S A, Collins, C E, Röpke, F K, Seitenzahl, I R & Shen, K J 2022, ' Modelling the ionisation state of Type Ia supernovae in the nebular-phase ', Monthly Notices of the Royal Astronomical Society, vol. 512, no. 4, pp. 6150–6163 . https://doi.org/10.1093/mnras/stac902
Monthly notices of the Royal Astronomical Society 512(4), 6150-6163 (2022). doi:10.1093/mnras/stac902
Monthly Notices of the Royal Astronomical Society

The nebular spectra of Type Ia supernovae ($\gtrapprox$ 100 days after explosion) consist mainly of emission lines from singly- and doubly-ionised Fe-group nuclei. However, theoretical models for many scenarios predict that non-thermal ionisation lea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911586379ad972181dab064f43e32175
https://pure.qub.ac.uk/en/publications/54ed9225-bac5-43c5-b114-873fae610161

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The influence of line opacity treatment in STELLA on supernova light curves

Autor: P. V. Baklanov, A. P. Mironov, Alexandra Kozyreva, S. I. Blinnikov, Luke J. Shingles

We systematically explore the effect of the treatment of line opacity on supernova light curves. We find that it is important to consider line opacity for both scattering and absorption (i.e. thermalisation which mimics the effect of fluorescence.) W

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfcb874e7eec4d510fd4c1bea3305765
http://arxiv.org/abs/2009.01566

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A year-long plateau in the late-time near-infrared light curves of type Ia supernovae

Autor: Robert Fisher, Luke J. Shingles, Arturo Avelino, Ivo R. Seitenzahl, Matt Nicholl, Or Graur, Kate Maguire, Russell E. Ryan, Adam G. Riess

Publikováno v: Nature Astronomy

The light curves of Type Ia supernovae are routinely used to constrain cosmology models. Driven by radioactive decay of 56Ni, the light curves steadily decline over time, but >150 days past explosion, the near-infrared portion is poorly characterized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddf3585a6e1324d1335cd5d1672ae9ea

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