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’m trying to probe all three with observations from the world's leading telescopes.

My research has been funded by the Royal Astronomical Society, Â鶹ÉçÇø, 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

2024

Achúcarro, A., Adam, R., Adamek, J., Addison, G. E., Aghanim, N., Aguena, M., Ajani, V., Akrami, Y., Al-Bahlawan, A., Alavi, A., Albuquerque, I. S., Alestas, G., Alguero, G., Allaoui, A., Allevato, V., Alonso-Tetilla, A. V., Altieri, B., Alvarez-Candal, A., Amara, A., Avila, S., Bacon, D., Barroso, J. A. A., Beutler, F., Bose, B., Collaboration, E., Collett, T. E., Fiorini, B., Fonseca De La Bella, L., Fonseca, J., Gaztanaga, E., Joudaki, S., Koyama, K., Leclercq, F., Manera, M., Maraston, C., Markovic, K., Mellier, Y., Nadathur, S., Nichol, R. C., Noller, J., Pace, F., Pattison, C., Percival, W. J., Pollack, J. E., Pourtsidou, A., Raccanelli, A., Schewtschenko, J. A., Whalen, D. J., Winther, H. -., Youles, S.

29 Aug 2024, In: Astronomy and Astrophysics

Collett, T., De Murieta, A. S., Enzi, W., Krawczyk, C., Lundgren, A., Vernardos, G., Weisenbach, L.

1 Jul 2024, In: Monthly Notices of the Royal Astronomical Society. 531, 4, p. 4349-4362, 14p.

Agarwal, S., Agrawal, A., Arendse, N., Belli, S., Burns, C., Caminha, G. B., Cañameras, R., Chakrabarti, S., Chen, W., Cohen, S. H., Collett, T. E., Coulter, D. A., Dhawan, S., Diego, J. M., DŚilva, J. C., Ellis, R. S., Engesser, M., Ertl, S., Foo, N., Fox, O. D., Frye, B. L., Gall, C., Garuda, N., Gezari, S., Glazebrook, K., Gomez, S., Granata, G., Grillo, C., Gu, M., Hjorth, J., Huang, X., Jha, S. W., Joshi, B. A., Kamieneski, P. S., Kelly, P., Koekemoer, A. M., Larison, C., Li, J., Li, T., Moustakas, L. A., Newman, A. B., Pascale, M., Petrushevska, T., Pierel, J. D., Poidevin, F., Pérez-Fournon, I., Rest, A., Robotham, A., Schuldt, S., Shahbandeh, M., Shajib, A. J., Siebert, M., Storfer, C., Strolger, L. G., Summers, J., Suyu, S. H., Talbot, M., Treu, T., Wang, Q., Wevers, T., Windhorst, R. A., Zenati, Y., Zitrin, A.

1 Jun 2024, In: Astrophysical Journal Letters. 967, 2, 9p., L37

Ballard, D. J., Collett, T. E., Enzi, W. J. R., Smith, R. J., Turner, H. C.

1 Mar 2024, In: Monthly Notices of the Royal Astronomical Society. 528, 4, p. 7564–7586, 23p.

Collett, T. E., Smith, R. J., Turner, H. C.

1 Feb 2024, In: Monthly Notices of the Royal Astronomical Society. 528, 2, p. 3559-3575, 17p.

2023

Collett, T. E., Enzi, W., Krawczyk, C. M., Magee, M. R., Sainz De Murieta Martinez-Zubiri, A., Weisenbach, L.

1 Dec 2023, In: Monthly Notices of the Royal Astronomical Society. 526, 3, p. 4296-4307, 12p.

Collett, T. E., Enzi, W., Krawczyk, C. M., Li, T.

15 Nov 2023, In: Monthly Notices of the Royal Astronomical Society, 13p.

Collett, T. E., Enzi, W., Magee, M. R., Murieta, A. S. d.

1 Oct 2023, In: Monthly Notices of the Royal Astronomical Society. 525, 1, p. 542-560, 19p.

Ballard, D., Barroso, J. A. A., Bella, L. F. d. l., Birrer, S., Bromley, J., Buckley-Geer, E., Cabanac, R., Calçada, G. V., Cavalcante-Gomes, M. V., Cañameras, R., Chan, J. H. H., Clément, B., Collett, T. E., Cornen, C., Courbin, F., Daylan, T., Despali, G., Dhanasingham, B., Diego, J. M., Dye, S., Fritz, A., Gentile, F., Glazebrook, K., González, J., Grudskaia, A., Góis-Silva, F., Herle, A., Jackson, N., Joseph, R., Levine, B. C., Macmillan, C., Magee, M. R., Mahler, G., Maresca, J., Martinez, M. N., Mastache, J., Melo, A., Millon, M., More, A., Niemiec, A., O'Donnell, J. H., Ogando, R. L. C., Paic, E., Pan, Y., Rojas, K., Ryczanowski, D., Savary, E., Schuldt, S., Sierra, I., Tortora, C., Ureña-López, L. A., Verdugo, T., Verma, A., Wiesner, M. P., Wilde, J., Williams, D. M.

1 Aug 2023, In: Monthly Notices of the Royal Astronomical Society. 523, 3, p. 4413–4430, 18p.

Andreoni, I., Arendse, N., Bellm, E., Bloom, J., Carracedo, A. S., Collett, T. E., Dhawan, S., Drake, A., Fremling, C., Goobar, A., Graham, M., Hinds, K. R., Johansson, J., Joseph, R., Kasliwal, M., Kulkarni, S. R., Lemon, C., Meynardie, W., Miller, A. A., Mörtsell, E., Neill, J. D., Nordin, J., Perley, D., Pierel, J., Richard, J., Riddle, R., Rigault, M., Rusholme, B., Schulze, S., Sharma, Y., Sollerman, J., Stein, R., Stewart, G., Townsend, A., Vinko, Y., Wheeler, J. C., Wold, A., Yan, L.

12 Jun 2023, In: Nature Astronomy