Welcome to Durham Research Online (DRO)

The SRG/eROSITA All-Sky Survey: Constraints on AGN feedback in galaxy groups (2024)
Journal Article
Bahar, Y. E., Bulbul, E., Ghirardini, V., Sanders, J. S., Zhang, X., Liu, A., Clerc, N., Artis, E., Balzer, F., Biffi, V., Bose, S., Comparat, J., Dolag, K., Garrel, C., Hadzhiyska, B., Hernández-Aguayo, C., Hernquist, L., Kluge, M., Krippendorf, S., Merloni, A., …Zelmer, S. (2024). The SRG/eROSITA All-Sky Survey: Constraints on AGN feedback in galaxy groups. Astronomy & Astrophysics, 691, Article A188. https://doi.org/10.1051/0004-6361/202449399

Context. Galaxy groups lying between galaxies and galaxy clusters in the mass spectrum of dark matter halos play a crucial role in the evolution and formation of the large-scale structure. Their shallower potential wells compared to clusters of galax... Read More about The SRG/eROSITA All-Sky Survey: Constraints on AGN feedback in galaxy groups.

Ubiquitous radio emission in quasars: Predominant AGN origin and a connection to jets, dust, and winds (2024)
Journal Article
Calistro Rivera, G., Alexander, D. M., Harrison, C. M., Fawcett, V. A., Best, P. N., Williams, W. L., Hardcastle, M. J., Rosario, D. J., Smith, D. J. B., Arnaudova, M. I., Escott, E., Gürkan, G., Kondapally, R., Miley, G., Morabito, L. K., Petley, J., Prandoni, I., Röttgering, H. J. A., & Yue, B.-H. (2024). Ubiquitous radio emission in quasars: Predominant AGN origin and a connection to jets, dust, and winds. Astronomy & Astrophysics, 691, Article A191. https://doi.org/10.1051/0004-6361/202348982

We present a comprehensive study of the physical origin of radio emission in optical quasars at redshifts z < 2.5. We focus particularly on the associations between compact radio emission, dust reddening, and outflows identified in our earlier work....

1-arcsecond imaging of the ELAIS-N1 field at 144MHz using the LoTSS survey with the international LOFAR telescope (2024)
Journal Article
Ye, H., Sweijen, F., van Weeren, R. J., Williams, W., de Jong, J., Morabito, L. K., Rottgering, H., Shimwell, T. W., Best, P. N., Bondi, M., Brüggen, M., de Gasperin, F., & Tasse, C. (2024). 1-arcsecond imaging of the ELAIS-N1 field at 144MHz using the LoTSS survey with the international LOFAR telescope. Astronomy & Astrophysics, 691, Article A347. https://doi.org/10.1051/0004-6361/202348103

We present the first wide area (2.5 × 2.5 deg2) LOFAR high band antenna image at a resolution of 1.2″ × 2″ with a median noise of ≈80 µJy beam−1. It was made from an 8-hour International LOFAR Telescope (ILT) observation of the ELAIS-N1 field at freq... Read More about 1-arcsecond imaging of the ELAIS-N1 field at 144MHz using the LoTSS survey with the international LOFAR telescope.

Happy to chat? Understanding older people’s attitudes and experiences of talking to strangers (2024)
Journal Article
Yen, D. A., Cappellini, B., Jen, M.-Y., & Victor, C. (online). Happy to chat? Understanding older people’s attitudes and experiences of talking to strangers. Ageing & Society, 1-20. https://doi.org/10.1017/s0144686x24000783

Extant literature shows that small conversations with strangers can help improve individuals’ wellbeing while reducing feelings of loneliness. Nevertheless, previous studies on talking to strangers tend to focus on young participants in controlled ex... Read More about Happy to chat? Understanding older people’s attitudes and experiences of talking to strangers.

Rethinking authentic leadership: An alternative approach based on dynamic processes of active identity, self-regulation, and ironic processes of mental control (2024)
Journal Article
Bunjak, A., Lord, R. G., & Acton, B. P. (online). Rethinking authentic leadership: An alternative approach based on dynamic processes of active identity, self-regulation, and ironic processes of mental control. Journal of Management and Organization, 1-30. https://doi.org/10.1017/jmo.2024.69

Despite its popularity, authentic leadership remains enigmatic, with both advantages and disadvantages. The connection between authenticity (an internal process) and leadership (an external influence process) is complex. We introduce a theory that co... Read More about Rethinking authentic leadership: An alternative approach based on dynamic processes of active identity, self-regulation, and ironic processes of mental control.