Personal profile
Biography
I am a Professor of Astrophysics. I got a PhD in Astrophysics at the University of Bologna (Italy), after which I have been post-doctoral fellow at the Ludwig-Maximillian University of Munich (Germany) and the Max-Planck Institute for extra-terrestrial physics (MPE) in Garching (Germany). In 2005 I was awarded a Marie-Curie fellowship which I spent at the University of Oxford (UK). In 2007 I was awarded a Marie-Curie Excellence Team Grant with which I joined the University of Portsmouth (UK), as senior lecturer in 2007 and Reader since 2009.
My expertise is the modelling of the spectro-photometric and mass properties of galaxies. These so-called Stellar Population Models find ubiquitous applications in astrophysics and cosmology. In particular, they are the tool to study galaxy formation and evolution both theoretically and by interpreting data. The models I calculate are publicly available at: www.maraston.eu.
Research Interests
Stellar Population modelling, galaxy evolution modelling, high-redshift galaxies, globular clusters.
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Collaborations and top research areas from the last five years
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An ultra-high-resolution map of (dark) matter
Scognamiglio, D., Leroy, G., Harvey, D., Massey, R., Rhodes, J., Akins, H. B., Brinch, M., Berman, E., Casey, C. M., Drakos, N. E., Faisst, A. L., Franco, M., Fung, L. W. H., Gozaliasl, G., He, Q., Hatamnia, H., Huff, E., Hogg, N. B., Ilbert, O. & Kartaltepe, J. S. & 21 others, , 26 Jan 2026, (Early online) In: Nature Astronomy. 22 p.Research output: Contribution to journal › Article › peer-review
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Cloudy-Maraston: Integrating nebular continuum and line emission with the Maraston stellar population synthesis models
Newman, S. L., Lovell, C. C., Maraston, C., Giavalisco, M., Roper, W. J., Saxena, A., Vijayan, A. P. & Wilkins, S. M., 1 Jan 2026, In: Monthly Notices of the Royal Astronomical Society. 545, 2, p. 1-22 22 p.Research output: Contribution to journal › Article › peer-review
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Lord of LRDs: Insights into a "Little Red Dot" with a low-ionization spectrum at z = 0.1
Ji, X., D'Eugenio, F., Juodžbalis, I., Walton, D. J., Fabian, A. C., Maiolino, R., Almeida, C. R., Pulido, J. A. A., Belokurov, V. A., Isobe, Y., Jones, G., Maraston, C., Scholtz, J., Simmonds, C., Tacchella, S., Terlevich, E. & Terlevich, R., 2 Jan 2026, In: Monthly Notices of the Royal Astronomical Society. 545, 3, 33 p., staf2235.Research output: Contribution to journal › Article › peer-review
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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. & 4 others, , 4 Apr 2025, In: Astronomy and Astrophysics. 696, 4, p. 1-26 26 p., A79.Research output: Contribution to journal › Article › peer-review
Open AccessFile7 Downloads (Pure) -
Beyond traditional diagnostics: Identifying active galactic nuclei using spectral energy distribution fitting in DESI data
Siudek, M., Mezcua, M., Circosta, C., Maraston, C., Moustakas, J., Zou, H., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Dawson, K. S., Macorra, A. D. L., Dey, A., Doel, P., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. A. G., Gutierrez, G. & Ishak, M. & 19 others, , 1 Aug 2025, In: Astronomy and Astrophysics. 700, 17 p., A209.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure)
Datasets
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Data availability statement for 'Modelling the mass-metallicity relation of star-forming galaxies from z ~ 3.5 to z ~ 0'.
Lian, J. (Creator), Thomas, D. (Creator) & Maraston, C. (Creator), Oxford University Press, 14 Sept 2018
Dataset
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Data availability statement for 'Photometric redshifts for galaxies in the Spitzer Extragalactic Representative Volume Survey (SERVS)'.
Pforr, J. (Creator), Vaccari, M. (Creator), Lacy, M. (Creator), Maraston, C. (Creator), Nyland, K. (Creator), Marchetti, L. (Creator) & Thomas, D. (Creator), Oxford University Press, 1 Mar 2019
Dataset
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Data availability statement for 'Stellar population models based on the SDSS-IV MaStar library of stellar spectra. I. Intermediate-age/old models'.
Maraston, C. (Creator), Hill, L. (Creator), Thomas, D. (Creator), Yan, R. (Creator), Chen, Y. (Creator), Lian, J. (Creator), Parikh, T. (Creator), Neumann, J. (Creator), Meneses-Goytia, S. (Creator), Bershady, M. A. (Creator), Drory, N. (Creator), Bizyaev, D. (Creator), Concas, A. (Creator), Brownstein, J. R. (Creator), Lazarz, D. (Creator), Stringfellow, G. S. (Creator) & Stassun, K. G. (Creator), Oxford University Press, 2 Jun 2020
Dataset
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Data availability statement for 'Stellar parameters for the first release of the MaStar library: an empirical approach'.
Chen, Y.-P. (Creator), Yan, R. (Creator), Maraston, C. (Creator), Thomas, D. (Creator), Stringfellow, G. S. (Creator), Bizyaev, D. (Creator), Gelfand, J. D. (Creator), Beers, T. C. (Creator), Fernández-Trincado, J. G. (Creator), Lazarz, D. (Creator), Hill, L. (Creator), Drory, N. (Creator) & Stassun, K. G. (Creator), IOP Publishing, 12 Aug 2020
Dataset
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Data availability statement for 'Stellar population properties of individual massive early-type galaxies at 1.4 < z < 2'.
Lonoce, I. (Creator), Maraston, C. (Creator), Thomas, D. (Creator), Longhetti, M. (Creator), Parikh, T. (Creator), Guarnieri, P. (Creator) & Comparat, J. (Creator), Oxford University Press, 28 Nov 2019
Dataset
Projects
- 2 Finished
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Cosmology and Astrophysics at Portsmouth
Nichol, B. (PI), Maartens, R. (CoI), Maraston, C. (CoI), Wands, D. (CoI), Thomas, D. (CoI), Crittenden, R. (CoI), Bacon, D. (CoI), Koyama, K. (CoI), Bruni, M. (CoI) & Percival, W. (CoI)
Science and Technology Facilities Council
1/04/13 → 31/03/16
Project: Research
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Survey Roller
Nichol, B. (PI), Maartens, R. (CoI), Thomas, D. (CoI), Maraston, C. (CoI), Bacon, D. (CoI), Crittenden, R. (CoI) & Percival, W. (CoI)
Science and Technology Facilities Council
1/04/11 → 31/03/15
Project: Research
Activities
- 2 Hosting an academic visitor
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Tania Barone
Thomas, D. (Host) & Maraston, C. (Host)
16 May 2019 → 17 May 2019Activity: Hosting a visitor types › Hosting an academic visitor
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Amy Jones
Thomas, D. (Host) & Maraston, C. (Host)
8 Apr 2019Activity: Hosting a visitor types › Hosting an academic visitor
Press/Media
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Cosmologist to help map earliest structures of Universe
26/04/21 → 6/05/21
3 items of Media coverage
Press/Media: Research cited
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What it’s like to work in astrophysics and why I love it
10/06/20
1 Media contribution
Press/Media: Expert comment
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