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Welcome to Durham Research Online (DRO)

Durham Research Online (DRO) is the University’s Open Access repository for publications. The primary purpose of DRO is to provide open access to publications authored by staff and students affiliated with Durham University.

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Latest Additions

Cosmic evolution of FRI and FRII sources out to z = 2.5 (2024)
Journal Article
de Jong, J. M. G. H. J., Röttgering, H. J. A., Kondapally, R., Mingo, B., van Weeren, R. J., Best, P. N., …Vecchi, F. F. (2024). Cosmic evolution of FRI and FRII sources out to z = 2.5. Astronomy & Astrophysics, 683, Article A23. https://doi.org/10.1051/0004-6361/202347131

Context. Radio-loud active galactic nuclei (RLAGN) play an important role in the evolution of galaxies through the effects on their environment. The two major morphological classes are core-bright (FRI) and edge-bright (FRII) sources. With the LOw-... Read More about Cosmic evolution of FRI and FRII sources out to z = 2.5.

AGN STORM 2. V. Anomalous Behavior of the C iv Light Curve of Mrk 817 (2024)
Journal Article
Homayouni, Y., Kriss, G. A., De Rosa, G., Plesha, R., Cackett, E. M., Goad, M. R., …Zu, Y. (2024). AGN STORM 2. V. Anomalous Behavior of the C iv Light Curve of Mrk 817. Astrophysical Journal, 963(2), Article 123. https://doi.org/10.3847/1538-4357/ad1be4

An intensive reverberation mapping campaign of the Seyfert 1 galaxy Mrk 817 using the Cosmic Origins Spectrograph on the Hubble Space Telescope revealed significant variations in the response of broad UV emission lines to fluctuations in the continuu... Read More about AGN STORM 2. V. Anomalous Behavior of the C iv Light Curve of Mrk 817.

‘Disciplined wonder’: on the evangelical possibility of reflecting theologically on very good things, as well as the bad and the ugly (2024)
Journal Article
Tranter, S. (2024). ‘Disciplined wonder’: on the evangelical possibility of reflecting theologically on very good things, as well as the bad and the ugly. Practical Theology, 17(2), 180-189. https://doi.org/10.1080/1756073x.2024.2303549

This article is adapted from a paper given at the inaugural meeting of the Tyndale Fellowship’s Practical Theology group in 2023. The theme of the meeting was ‘Evangelical Practical Theology?’ The essay identifies practical theology’s adeptness at at... Read More about ‘Disciplined wonder’: on the evangelical possibility of reflecting theologically on very good things, as well as the bad and the ugly.

What drives the variability in AGN? Explaining the UV-Xray disconnect through propagating fluctuations (2024)
Journal Article
Hagen, S., Done, C., & Edelson, R. (in press). What drives the variability in AGN? Explaining the UV-Xray disconnect through propagating fluctuations. Monthly Notices of the Royal Astronomical Society, 530(4), 4850 - 4867. https://doi.org/10.1093/mnras/stae1177

Intensive broad-band reverberation mapping campaigns have shown that AGN variability is significantly more complex than expected from disc reverberation of the variable X-ray illumination. The UV/optical variability is highly correlated and lagged, w... Read More about What drives the variability in AGN? Explaining the UV-Xray disconnect through propagating fluctuations.