James O'Donoghue

James O'Donoghue

Research Associate Professor

Publications

You can also find my articles on my Google Scholar profile.
    1. Knowles, K. L., Stallard, T. S., O'Donoghue, J., Moore, L., Agiwal, O., et al. Magnetic silhouettes in Jupiter's non-auroral ionosphere. Journal of Geophysical Research: Space Physics 130, e2025JA033868, doi: 10.1029/2025JA033868, 2025.
    2. Nixon, C. A., Bézard, B., Cornet, T., Coy, B. P., ... O'Donoghue, J. [34th], et al. The atmosphere of Titan in late northern summer from JWST and Keck observations. Nature Astronomy, doi: 10.1038/s41550-025-02537-3, 2025.
    3. Roberts, K., Moore, L., O'Donoghue, J., Melin, H., Stallard, T., et al. Spatiotemporal Variations of Temperature in Jupiter's Upper Atmosphere. Planet. Sci. J. 6, 92, doi: 10.3847/PSJ/adc09b, 2025.
    4. O'Donoghue, J., Moore, L., Stallard, T., Kurth, B., et al. Sub‐auroral heating at Jupiter following a solar wind compression. Geophysical Research Letters, 52, e2024GL113751, doi:10.1029/2024GL113751, 2025.
    5. Thomas, E. M., Stallard, T. S., Melin, H., Chowdhury, M. N., ... O'Donoghue, J. [6th], et al. Auroral and non‐auroral H3+ ion winds at Uranus with Keck‐NIRSPEC and IRTF‐iSHELL. Geophysical Research Letters, 52, e2024GL112001, doi:10.1029/2024GL112001, 2025.
    6. Melin, H., Moore, L., Fletcher, L. N., Hammel, H. B., O'Donoghue, J., et al. Discovery of H3+ and infrared aurorae at Neptune with JWST. Nature Astronomy, doi:10.1038/s41550-025-02507-9, 2025.
    7. Wang, R., Stallard, T. S., Melin, H., Baines, K. H., ... O'Donoghue, J. [6th], et al. Simultaneous Infrared Observations of the Jovian Auroral Ionosphere and Thermosphere. Journal Geophysical Research Space Physics, doi:10.1029/2024JA032891, 2024.
    8. Melin, H., O'Donoghue, J., Moore, L., et al. Ionospheric irregularities at Jupiter observed by JWST. Nat. Astron. 8, 1000–1007, doi:10.1038/s41550-024-02305-9, 2024.
    9. Agiwal, O., Cao, H., Hsu, H.-W., Moore, L., ... O'Donoghue, J. [6th], et al. Current Events at Saturn: Ring–Planet Electromagnetic Coupling. Planetary Science Journal 5, 134, doi:10.3847/PSJ/ad4343, 2024.
    10. Bockelée-Morvan, D., Lellouch, E., Poch, O., Quirico, E., ... O'Donoghue, J. [22nd], et al. Composition and thermal properties of Ganymede’s surface from JWST/NIRSpec and MIRI observations. Astronomy & Astrophysics 681, p. A27, doi:10.1051/0004-6361/202347326, 2024.
    11. Cao, X., Chu, X., Hsu, H.-W., Cao, H., ... O'Donoghue, J. [6th], et al. Science return of probing magnetospheric systems of ice giants. Front. Astron. Space Sci. 11:1203705, doi:10.3389/fspas.2024.1203705, 2024.
    12. Wang, R., Stallard, T. S., Melin, H., Baines, K. H., ... O'Donoghue, J. [6th], et al. Asymmetric ionospheric jets in Jupiter's aurora. J. Geophys. Res. Space Phys. 128, 12, doi:10.1029/2023JA031861, 2023.
    13. O'Donoghue, J. and Stallard, T. What the Upper Atmospheres of Giant Planets Reveal. Remote Sensing, 14, 6326, doi:10.3390/rs14246326, 2022.
    14. Chowdhury, M. N., Stallard, T. S., Baines, K. H., Provan, G., ... O'Donoghue, J. [8th], et al. Saturn’s weather-driven aurorae modulate oscillations in the magnetic field and radio emissions. Geophys. Res. Lett., doi:10.1029/2021GL096492, 2022.
    15. O'Donoghue, J., Moore, L., Melin, H., Stallard, T. S., et al. Global upper-atmospheric heating on Jupiter by the polar aurorae. Nature, doi:10.1038/s41586-021-03706-w, 2021.
    16. Moore, L., Moses, J. I., Melin, H., Stallard, T. S., O'Donoghue, J., et al. Atmospheric implications of the lack of H3+ detection at Neptune. Phil. Trans. R. Soc. A. 378:20200100, doi:10.1098/rsta.2020.0100, 2020.
    17. Yurchenko, S. N., Tennyson, J., Miller, S., Melnikov, V. V., O'Donoghue, J., et al. ExoMol line lists – XL. Rovibrational molecular line list for the hydronium ion (H3O+). Monthly Notices of the Royal Astronomical Society 497(2), 2340–2351, doi:10.1093/mnras/staa2034, 2020.
    18. O'Donoghue, J., Moore, L., Connerney, J. E. P., Melin, H., et al. Observations of the chemical and thermal response of ‘ring rain’ on Saturn's ionosphere. Icarus 322, 251–260, doi:10.1016/j.icarus.2018.10.027, 2019.
    19. Moore, L., Melin, H., O'Donoghue, J., et al. Modelling H3+ in planetary atmospheres: effects of vertical gradients. Phil. Trans. R. Soc. A. 377, 20190067, doi:10.1098/rsta.2019.0067, 2019.
    20. Ray, L. C., Lorch, C. T. S., O'Donoghue, J., et al. Why is the H3+ hot spot above Jupiter's Great Red Spot so hot? Phil. Trans. R. Soc. A. 377, 20180407, doi:10.1098/rsta.2018.0407, 2019.
    21. Melin, H., Fletcher, L. N., Stallard, T. S., ... O'Donoghue, J. [7th], et al. The H3+ ionosphere of Uranus: decades-long cooling and local-time morphology. Phil. Trans. A., doi:10.1098/rsta.2018.0408, 2019.
    22. Stallard, T., Baines, K., Melin, H., Bradley, T., ... O'Donoghue, J. [6th], et al. Local-time averaged maps of H3+ emission, temperature and ion winds. Phil. Trans. A., doi:10.1098/rsta.2018.0405, 2019.
    23. Moore, L., Galand, M., Kliore, A., Nagy, A., O'Donoghue, J. [5th], et al. Saturn's ionosphere: ring rain and other drivers. In book chapter: Saturn in the 21st Century, Cambridge University Press, doi:10.1017/9781316227220, 2018.
    24. Hsu, H. W., Schmidt, J., Kempf, S., ... O'Donoghue, J. [15th], et al. In situ collection of dust grains falling from Saturn's rings into its atmosphere. Science, 362(6410), doi:10.1126/science.aat3185, 2018.
    25. Stallard, T., Burrell, A. G., Melin, H., ... O'Donoghue, J. [7th], et al. Identification of Jupiter's magnetic equator through H3+ ionospheric emission. Nat. Astron., 2(7), doi:10.1038/s41550-018-0523-z, 2018.
    26. Melin, H., Fletcher, L. N., Stallard, T. S., Johnson, R. E., O'Donoghue, J., et al. The quest for H3+ at Neptune: deep burn observations with NASA IRTF iSHELL. Monthly Notices of the Royal Astronomical Society 474(3), 3714–3719, doi:10.1093/mnras/stx3029, 2018.
    27. O'Donoghue, J., Moore, L., Connerney, J. E. P., Melin, H., et al. Re-detection of the ionospheric H3+ signature of Saturn's "ring rain". Geophys. Res. Lett. 44(11), 11762–11769, doi:10.1002/2017GL075932, 2017.
    28. Stallard, T., Melin, H., Miller, S., Moore, L., O'Donoghue, J., et al. Great Cold Spot in Jupiter's upper atmosphere. Geophys. Res. Lett. 44(7), 3000–3008, doi:10.1002/2016GL071956, 2017.
    29. Moore, L., O'Donoghue, J., Melin, H., Stallard, T., et al. Variability of Jupiter's IR H3+ aurorae during Juno approach. Geophys. Res. Lett. 44, 4513–4522, doi:10.1002/2017GL073156, 2017.
    30. O'Donoghue, J., Moore, L., Stallard, T. S., Melin, H., et al. Heating of Jupiter's upper atmosphere above the Great Red Spot. Nature 536(7615), 190–192, doi:10.1038/nature18940, 2016.
    31. Stallard, T., Clarke, J. T., Melin, H., Miller, ... O'Donoghue, J. [6th], et al. Stability within Jupiter's polar auroral 'Swirl region' over moderate timescales. Icarus 268, 145–155, doi:10.1016/j.icarus.2015.12.044, 2016.
    32. O'Donoghue, J., Melin, H., Stallard, T. S., Provan, G., Moore, L., et al. Ground-based observations of Saturn's auroral ionosphere over three days: trends in H3+ temperature, density and emission with Saturn local time and planetary period oscillation. Icarus 263, 44–55, doi:10.1016/j.icarus.2015.04.018, 2016.
    33. Melin, H., Badman, S. V., Stallard, T. S., Cowley, S. W. H., ... O'Donoghue, J. [7th], et al. Simultaneous multi-scale and multi-instrument observations of Saturn's aurorae during the 2013 observing campaign. Icarus 263, 56–74, doi:10.1016/j.icarus.2015.08.021, 2016.
    34. Stallard, T. S., Melin, H., Miller, S., Badman, ... O'Donoghue, J. [8th], et al. Cassini VIMS observations of H3+ emission on the nightside of Jupiter. J. Geophys. Res. Space Physics 120, 6948–6973, doi:10.1002/2015JA021097, 2016.
    35. Moore, L., O'Donoghue, J., Mueller-Wodarg, I., Galand, M., Mendillo, M. Saturn ring rain: Model estimates of water influx into Saturn's atmosphere. Icarus 245, 355–366, doi:10.1016/j.icarus.2014.08.041, 2015.
    36. Mousis, O., Fletcher, L. N., ... O'Donoghue, J. [32nd], et al. Scientific rationale for Saturn's in situ exploration. Planetary and Space Science 104, 29–47, doi:10.1016/j.pss.2014.09.014, 2014.
    37. Melin, H., Stallard, T. S., O'Donoghue, J., et al. On the anti-correlation between H3+ temperature and density in giant planet ionospheres. Mon. Not. R. Astron. Soc., doi:10.1093/mnras/stt2299, 2013.
    38. O'Donoghue, J., Stallard, T. S., Melin, H., Cowley, S. W. H., et al. Conjugate observations of Saturn's northern and southern aurorae. Icarus 229, 214–220, doi:10.1016/j.icarus.2013.11.009, 2013.
    39. O'Donoghue, J., Stallard, T. S., Melin, H., Jones, G. H., et al. The domination of Saturn's low-latitude ionosphere by ring ‘rain’. Nature 496(7444), 193–195, doi:10.1038/nature12049, 2013.
    40. Melin, H., Stallard, T. S., S. Miller, T. R. Geballe, ... O'Donoghue, J. [6th], et al. Post-equinoctial observations of the ionosphere of Uranus. Icarus 223(2), 741–748, doi:10.1016/j.icarus.2013.01.012, 2013.
    41. Stallard, T. S., Melin, H., Miller, S., O'Donoghue, J., et al. Temperature changes and energy inputs in giant planet atmospheres: what we are learning from H3+. Phil. Trans. R. Soc. 370, 5213–5224, doi:10.1098/rsta.2012.0028, 2012.
    42. Melin, H., Stallard, T. S., S. Miller, Gustin, J., ... O'Donoghue, J. [8th], et al. Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora: Comparing emissions from H, H2 and H3+ at a high spatial resolution. Geophys. Res. Lett. 38, L15203, doi:10.1029/2011GL048457, 2011.