Thomas Edward Collett Portrait

Professor Thomas Collett

Professor of Astrophysics

Thomas.Collett@port.ac.uk

PhD Supervisor

View my research outputs
Faculty of Technology Cosmology and astrophysics Institute of Cosmology and Gravitation

Biography

I am an astrophysicist and cosmologist studying how dark energy is affecting the expansion of the Universe. I do this using a phenomenon called strong gravitational lensing, where the path of light from a background galaxy is bent by a massive foreground galaxy to produce multiple images of the background source. The location where the lensed images form is sensitive to the cosmological parameters and the dark matter distribution in the lens galaxy and throughout the Universe. I鈥檓 trying to probe all three with observations from the world's leading telescopes.

My research has been funded by the Royal Astronomical Society, 黑料正能量, Science and Technolody Facilities Council and the Royal Society.

I won the Winton prize in 2020 and the Murdin prize in 2014.

I'm particularly proud of the following papers:

Research outputs

2026

De Murieta, A. S., Magee, M. R., Li, T., Collett, T. E., Johansson, J.

1 Feb 2026, In: Monthly Notices of the Royal Astronomical Society. 546, 2, 16p., stag091

Research output: Article

Barone, T. M., Vasan, K. C., Tran, K. V., Kacprzak, G. G., Glazebrook, K., Jones, T., Bowden, D. J., Dalessandro, F., Sahu, N., Skobe, H., Allen, R. J., Baker, M. M., Ballard, D. J., Chen, Y., Collett, T. E., Ferrami, G., Gonz谩lez, J., Gottemoller, W., Harshan, A., Huang, X., Iwamoto, L., Jacobs, C., Jeltema, T. E., Gupta, K. R., Lewis, G. F., Lopez, S., Nanayakkara, T., Nielsen, N. M., O鈥橠onnell, J., Qu, H., Rhoades, S., Shajib, A. J., Sweet, S. M., Tejos, N.

2 Jan 2026, In: Astronomical Journal. 171, 1, 23p., 57

Research output: Article

2025

Li, S. K., Weisenbach, L., Collett, T. E., Diego, J. M., Lim, J., Broadhurst, T. J., Chow, A., Enzi, W. J., Kelly, P. L., Melo-Carneiro, C. R., Palencia, J. M., Williams, L. L., Zhang, J.

5 Dec 2025, In: Monthly Notices of the Royal Astronomical Society. 544, 4, p. 4469-4481, 13p.

Research output: Article

Frohmaier, C., Vincenzi, M., Sullivan, M., H枚nig, S. F., Smith, M., Addison, H., Collett, T., Dimitriadis, G., Ellis, R. S., Gandhi, P., Graur, O., Hook, I., Kelsey, L., Kim, Y. L., Lidman, C., Maguire, K., Makrygianni, L., Martin, B., M枚ller, A., Nichol, R. C., Nicholl, M., Schady, P., Simmons, B. D., Smartt, S. J., Tempel, E., Wiseman, P.

10 Oct 2025, In: The Astrophysical Journal. 992, 1, 18p., 158

Research output: Article

Miller, A. A., Abrams, N. S., Aldering, G., Anand, S., Angus, C. R., Arcavi, I., Baltay, C., Bauer, F. E., Brethauer, D., Bloom, J. S., Bommireddy, H., Catelan, M., Chornock, R., Clark, P., Collett, T. E., Dimitriadis, G., Faris, S., Forster, F., Franckowiak, A., Galbany, L., Galleguillos, R. B., Goobar, A., Graur, O., Gutierrez, C. P., Hall, S., Hammerstein, E., Herner, K. R., Hook, I. M., Huston, M. J., Johansson, J., Kilpatrick, C. D., Kim, A. G., Knop, R. A., Kowalski, M. P., Kwok, L. A., LeBaron, N., Lin, K. W., Liu, C., Lu, J. R., Lu, W., Lunnan, R., Maguire, K., Makrygianni, L., Margutti, R., Maoz, D., Veres, P. M., Moore, T., Nayana, A. J., Nicholl, M., Nordin, J., Pignata, G., Polin, A., Poznanski, D., Prieto, J. L., Rabinowitz, D. L., Rehemtulla, N., Rigault, M., Ryczanowski, D., Sarin, N., Schulze, S., Shah, V. G., Sheng, X., Shilling, S. P. R., Simmons, B. D., Singh, A., Smith, G. P., Smith, M., Sollerman, J., Soumagnac, M. T., Stubbs, C. W., Sullivan, M., Suresh, A., Trakhtenbrot, B., Ward, C., Wiston, E., Xiong, H., Yao, Y., Nugent, P. E.

29 Sep 2025, In: Publications of the Astronomical Society of the Pacific. 137, 9, 30p., 094204

Research output: Article

Sahu, N., Shajib, A. J., Tran, K. V., Skobe, H., Rhoades, S., Jones, T., Glazebrook, K., Collett, T. E., Suyu, S. H., Vasan G. C, K., Barone, T. M., Bowden, D. J., Ballard, D., Kacprzak, G. G., Sweet, S. M., Lewis, G. F., Nanayakkara, T.

20 Sep 2025, In: Astrophysical Journal. 991, 1, 17p., 72

Research output: Article

Lines, N. E., Li, T., Collett, T. E., Holloway, P., Nightingale, J. W., Rojas, K., Verma, A., Walmsley, M.

18 Aug 2025, In: Nature Astronomy. 9, 8, p. 1116-1122, 7p.

Research output: Article

Melo-Carneiro, C. R., Collett, T. E., Oldham, L. J., Enzi, W., Furlanetto, C., Chies-Santos, A. L., Li, T.

7 Aug 2025, In: Monthly Notices of the Royal Astronomical Society. 541, 4, p. 2853-2871, 19p.

Research output: Article

Collaboration, E., Rojas, K., Collett, T. E., Barroso, J. A. A., Nightingale, J. W., Stern, D., Moustakas, L. A., Schuldt, S., Despali, G., Melo, A., Walmsley, M., Ballard, D. J., Enzi, W. J. R., Li, T., de Murieta, A. S., Andika, I. T., Cl茅ment, B., Courbin, F., Ecker, L. R., Gavazzi, R., Jackson, N., Kov谩cs, A., Matavulj, P., Meneghetti, M., Serjeant, S., Sluse, D., Tortora, C., Verma, A., Marchetti, L., O'Riordan, C. M., McCarthy, K., Suyu, S. H., Metcalf, R. B., Aghanim, N., Altieri, B., Amara, A., Andreon, S., Auricchio, N., Aussel, H., Baccigalupi, C., Baldi, M., Balestra, A., Bardelli, S., Casas, S., Nichol, R. C., Percival, W. J., Schewtschenko, J. A., Gaztanaga, E., Nadathur, S., Naidoo, K.

24 Jul 2025, In: Astronomy and Astrophysics

Research output: Article

Collaboration, E., Lines, N. E. P., Collett, T. E., Walmsley, M., Rojas, K., Li, T., Leuzzi, L., Manj贸n-Garc铆a, A., Vincken, S. H., Wilde, J., Holloway, P., Verma, A., Metcalf, R. B., Andika, I. T., Melo, A., Melchior, M., S谩nchez, H. D., D铆az-S谩nchez, A., Barroso, J. A. A., Cl茅ment, B., Krawczyk, C., Pearce-Casey, R., Serjeant, S., Courbin, F., Despali, G., Gavazzi, R., Schuldt, S., Degaudenzi, H., Ecker, L. R., Enzi, W. J. R., Finner, K., Galan, A., Giocoli, C., Hogg, N. B., Jahnke, K., Kruk, S., Mahler, G., More, A., Nagam, B. C., Pearson, J., de Murieta, A. S., Weisenbach, L., Amara, A., Casas, S., Nichol, R. C., Percival, W. J., Schewtschenko, J. A., Gaztanaga, E., Nadathur, S., Naidoo, K.

17 Jun 2025, In: Astronomy and Astrophysics

Research output: Article