Dr Christopher Osborne
- Research Fellow (Physics & Astronomy)
Research interests
My research primarily focuses on the modelling and interpretation of optical spectral lines from solar flares. I specialise in radiative transfer with time-dependent atomic populations outside of local thermodynamic equilibrium, and also the application of machine learning to invert this problem in observations in a computationally tractable manner.
Publications
2024
Osborne, Christopher and Sannikov, A. (2024) Radiance cascades: a novel high-resolution formal solution for multidimensional non-LTE radiative transfer. RAS Techniques and Instruments, (Accepted for Publication)
Peat, Aaron W., Osborne, Christopher M.J. and Heinzel, Petr (2024) Doppler dimming and brightening effects in solar prominences. Monthly Notices of the Royal Astronomical Society: Letters, 533(1), L19-L24. (doi: 10.1093/mnrasl/slae055)
Hudson, Hugh S. 
ORCID: https://orcid.org/0000-0001-5685-1283, Cliver, Edward W., Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899, Diver, Declan A. ORCID: https://orcid.org/0000-0001-6478-6020, Gallagher, Peter T., Li, Ying, Osborne, Christopher M.J., Stark, Craig ORCID: https://orcid.org/0000-0003-4587-6682 and Su, Yang
(2024)
An impulsive geomagnetic effect from an early-impulsive flare.
Monthly Notices of the Royal Astronomical Society, 532(3),
pp. 3120-3125.
(doi: 10.1093/mnras/stae1720)
Jenkins, Jack M., Osborne, Christopher M. J., Qiu, Ye, Keppens, Rony and Li, Chuan (2024) The bright rim prominences according to 2.5D radiative transfer. Astrophysical Journal Letters, 964(2), L34. (doi: 10.3847/2041-8213/ad3423)
2022
Osborne, Christopher M. J. and Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899
(2022)
Flare kernels may be smaller than you think: modelling the radiative response of chromospheric plasma adjacent to a solar flare.
Monthly Notices of the Royal Astronomical Society, 516(4),
pp. 6066-6074.
(doi: 10.1093/mnras/stac2570)
2021
Osborne, Christopher M.J. and Milić, Ivan (2021) The Lightweaver framework for nonlocal thermal equlibrum radiative transfer in Python. Astrophysical Journal, 917(1), 14. (doi: 10.3847/1538-4357/ac02be)
2020
Armstrong, John A. ORCID: https://orcid.org/0000-0003-1589-9365, Osborne, Christopher M.J. and Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899
(2020)
Deep learning for the Sun.
Astronomy and Geophysics, 61(3),
3.34-3.39.
(doi: 10.1093/astrogeo/ataa044)
2019
Osborne, Christopher M.J. and Simoes, Paulo J.A. ORCID: https://orcid.org/0000-0002-4819-1884
(2019)
Thyr: a volumetric ray-marching tool for simulating microwave emission.
Monthly Notices of the Royal Astronomical Society, 485(3),
pp. 3386-3397.
(doi: 10.1093/mnras/stz660)
Osborne, Christopher M.J., Armstrong, John A. ORCID: https://orcid.org/0000-0003-1589-9365 and Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899
(2019)
RADYNVERSION: Learning to invert a solar flare atmosphere with invertible neural networks.
Astrophysical Journal, 873,
128.
(doi: 10.3847/1538-4357/ab07b4)
Articles
Osborne, Christopher and Sannikov, A. (2024) Radiance cascades: a novel high-resolution formal solution for multidimensional non-LTE radiative transfer. RAS Techniques and Instruments, (Accepted for Publication)
Peat, Aaron W., Osborne, Christopher M.J. and Heinzel, Petr (2024) Doppler dimming and brightening effects in solar prominences. Monthly Notices of the Royal Astronomical Society: Letters, 533(1), L19-L24. (doi: 10.1093/mnrasl/slae055)
Hudson, Hugh S. ORCID: https://orcid.org/0000-0001-5685-1283, Cliver, Edward W., Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899, Diver, Declan A. ORCID: https://orcid.org/0000-0001-6478-6020, Gallagher, Peter T., Li, Ying, Osborne, Christopher M.J., Stark, Craig ORCID: https://orcid.org/0000-0003-4587-6682 and Su, Yang
(2024)
An impulsive geomagnetic effect from an early-impulsive flare.
Monthly Notices of the Royal Astronomical Society, 532(3),
pp. 3120-3125.
(doi: 10.1093/mnras/stae1720)
Jenkins, Jack M., Osborne, Christopher M. J., Qiu, Ye, Keppens, Rony and Li, Chuan (2024) The bright rim prominences according to 2.5D radiative transfer. Astrophysical Journal Letters, 964(2), L34. (doi: 10.3847/2041-8213/ad3423)
Osborne, Christopher M. J. and Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899
(2022)
Flare kernels may be smaller than you think: modelling the radiative response of chromospheric plasma adjacent to a solar flare.
Monthly Notices of the Royal Astronomical Society, 516(4),
pp. 6066-6074.
(doi: 10.1093/mnras/stac2570)
Osborne, Christopher M.J. and Milić, Ivan (2021) The Lightweaver framework for nonlocal thermal equlibrum radiative transfer in Python. Astrophysical Journal, 917(1), 14. (doi: 10.3847/1538-4357/ac02be)
Armstrong, John A. ORCID: https://orcid.org/0000-0003-1589-9365, Osborne, Christopher M.J. and Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899
(2020)
Deep learning for the Sun.
Astronomy and Geophysics, 61(3),
3.34-3.39.
(doi: 10.1093/astrogeo/ataa044)
Osborne, Christopher M.J. and Simoes, Paulo J.A. ORCID: https://orcid.org/0000-0002-4819-1884
(2019)
Thyr: a volumetric ray-marching tool for simulating microwave emission.
Monthly Notices of the Royal Astronomical Society, 485(3),
pp. 3386-3397.
(doi: 10.1093/mnras/stz660)
Osborne, Christopher M.J., Armstrong, John A. ORCID: https://orcid.org/0000-0003-1589-9365 and Fletcher, Lyndsay ORCID: https://orcid.org/0000-0001-9315-7899
(2019)
RADYNVERSION: Learning to invert a solar flare atmosphere with invertible neural networks.
Astrophysical Journal, 873,
128.
(doi: 10.3847/1538-4357/ab07b4)
