star Research Students

The following Postgraduate Research Students have completed their doctorate during the REF census period. For a list of current students please view departmental pages. Where possible, we have linked to the full-text electronic version of the PhD theses. The other PhD theses are available on request by contacting

Name Project Title
ANACLETO ARROJA, Frederico Martinho On the Four-Dimensional Effective Theories in Brane-Worlds
CARSON, Daniel Paul Cosmological Constraints from the Ages of Luminous Red Galaxies
GIANNANTONIO, Tommaso Constraining Cosmological Models with Cosmic Microwave Background Fluctuations from the Late Universe
HOYLE, Ben Building a Mass Function and Testing Gravity Using Galaxy Clusters
MAJEROTTO, Elisabetta The Cosmic Late-Time Acceleration: Theoretical Models and Observational Constraints
SMITH, Mathew Properties of Type IA Supernovae and their Host Galaxies in the SDSS-II Supernova Survey
CALDERA-CABRAL, Gabriela Alejandra Interacting Dark Energy Models of the Late-time Acceleration of the Universe
CARDOSO, Antonio Manuel Bondoso Cosmological Dynamics and Observational Constraints
HOLLENSTEIN, Lukas Applications of Cosmological Perturbation Theory to Dynamical Dark Energy and Primordial Magnetogenesis
MILILLO, Irene Linear and non-linear effects in structure formation
PIETROBON, Davide Making the Best of Cosmological Perturbations: Theory and Data Analysis
SABIU, Cristiano Giovanni Measurements of the Higher Order Clustering Statistics of Luminous Red Galaxies in the Sloan Digital Sky Survey
TORKI, Mehri Observational Constraints on the Statistical Properties of Clusters of Galaxies and the Halo Occupation Distribution
ASSADULLAHI, Hooshyar Parvandar Non-linear Cosmological Perturbations
CRESSWELL, James Greyhame Luminosity Functions and Galaxy Bias in the Sloan Digital Sky Survey
NOCK, Kelly Marie Analysing galaxy clustering for future experiments including the Dark Energy Survey
PATEL, Prina Weak Gravitational Lensing at Radio Wavelengths
SILVA, Fabio Parracho Stability of self-accelerating solutions in modified gravity models
JOHANSSON, Jonas The chemical evolution of unresolved stellar populations: from stellar astrophysics to cosmology
PFORR, Janine Galaxy physical properties from population model fitting
STROMBACK, Lars Gustav Fine-tuning stellar population models
BEYNON Emma-Louise Testing gravity and dark energy with gravitational lensing
CAMPBELL Heather Cosmology with photometrically-classified Type Ia Supernovae
CLEMSON Tim Late-time Acceleration: Interacting Dark Energy and Modified Gravity
FONSECA Jose Carlos Primordial perturbations from early universe cosmology
MEURES Nikolai General relativistic effects on cosmological observations
RACCANELLI Alvise Tests of cosmological structure growth
SCHUMACHER Hana A Study of Quasars: An Investigation into the Molecular Gas of a High-redshift Quasar and the Radio Loudness of Radio-quiet Quasars

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star Research Collaborations

Collaboration and contribution to the discipline or research base

International collaborations in the Institute of Cosmology and Gravitation have been supported by a number of awards including a Royal Society Research Network with South Africa (NRF) (Nichol), a Royal Society International Joint Project grant with Kyoto University (Koyama) and the Daiwa Anglo-Japanese Foundation, Daiwa Adrian Prize 2010 (Wands).

Staff at the Institute play leading roles in major international collaborations in astronomy, including:

  • Sloan Digital Sky Survey (SDSS): Nichol was spokesperson for the collaboration (2009-2011) and Masters is outreach coordinator for SDSS-IV
  • Baryon Acoustic Oscillation Survey (BOSS), part of SDSS-III: Maraston is chair of the Galaxy Evolution working group; Tojeiro is co-chair of the Large-Scale Structure working group; Maraston, Nichol, Percival, Thomas and Tojeiro are SDSS-III BOSS “architects” in recognition of their substantial contribution to the whole collaboration, allowing them privileged authorship rights
  • eBOSS (extended BOSS), part of SDSS-IV: Percival is survey scientist
  • MaNGA, part of SDSS-IV: Nichol is member of the steering committee; Thomas is the Science Team chair; Masters is the co-chair of the Kinematics working group, and Masters and Thomas are both members of management committee
  • Galaxy Zoo: Masters is project scientist
  • Dark Energy Survey (DES): Nichol is on DES management council, the DES-UK board, and is the co-chair of the Supernovae working group; Percival is the coordinator of Large-Scale Structure working group; Thomas is the coordinator of Galaxy Evolution working group; Bacon leads the mass mapping sub-group for Weak Lensing working group; Nichol, Percival and Thomas are DES “builders”
  • LOFAR (Low Frequency Radio Array): Nichol was a member of the LOFAR:UK management committee from 2006 to 2010; Bacon is leading the Surveys Cosmology working group and is a Long Baseline group core team member; Masters was Spokesperson for LOFAR-UK (2009-13) and is on the management committee
  • ESA Euclid Satellite: Nichol is on the Euclid Consortium Board and is a member of the Euclid Science Team; Percival is Cosmology and Galaxy Clustering coordinator; Bacon is Gravitational Flexion work package coordinator; Maraston is work package coordinator for the Photometric Redshift working group; Koyama is a non-standard cosmological simulation coordinator for Simulation working group; Zhao is a member of the Forecast and Simulation working groups; Koyama and Maartens are members of the Theory working group.
  • ESO VIPER survey: Percival is on the VIPERS steering committee; Tojeiro is a “builder” in VIPERS.
  • Square Kilometre Array (SKA): Maartens is SKA research professor at University of Western Cape, South Africa, and chair of the SKA Cosmology working group; Bacon is also a member of the Cosmology working group

Institute of Cosmology and Gravitation researchers are involved in numerous other surveys including GAMA (Galactic Mass Assembly) and SERVS (Spitzer Extragalactic Representative Volume Survey), DESI (Dark Energy Spectroscopic Instrument), DESspec and WEAVE.

The Institute regularly hosts collaboration meetings and workshops in Portsmouth, including the UK Cosmology and Cosmic Superstrings meeting (September 2011), MaNGA meeting (2013), Dark Energy Survey Spring Collaboration meeting (June 2011), Open Puzzles in Galaxy Formation and Evolution (September 2010), VIPERS collaboration meeting (June 2010), Galaxy Zoo 2 Science meeting (October 2009), Unity of the Universe conference (June 2009), Modified Gravity on Cosmological Scales (June 2008). Portsmouth is part of UK Cosmo and Koyama is on the national organising committee. Maartens, Nichol and Percival were on the science committee that organised the first Euclid/SKA science conference (Oxford, 2013). In June 2014 we will host the National Astronomy Meeting in Portsmouth.

Institute of Cosmology and Gravitation members serve on numerous national and international peer review committees. Nichol was a member of ESA’s Euclid Science Study Team (2007-09), Optimization Assessment Team (2010), Interim Science Working Team (2011) and Science Team (since 2011). Nichol was a member of ESA-NASA Figure of Merit science working group (2009) and member of NASA WFIRST Science Definition Team (2010-12). Maraston was ESO Observing Programmes Committee member and chair (2007-09) and Thomas was member and chair (2012). Nichol was chair of the STFC Far Universe Advisory Panel (2009-11) and member of Science Board (since 2013). Percival and Wands are members of the STFC Astronomy Grants Panel (Percival since 2013 and Wands 2009-10 and Theory Panel Chair from 2014). Koyama is a member of the STFC Fellowships Panel (2012-13) and Crittenden was a member (2009-10). Maartens is a member of the South African Astronomy Desk Reference Group, advising government on policy and strategy, and is editor-in-chief of General Relativity and Gravitation journal. Wands was on the editorial board of Classical and Quantum Gravity (2007-10), and Wands and Koyama are currently on the CQG advisory board (both since 2011). Wands is a co-editor of EPL (Europhysics Letters) (since 2011).

Other national and international recognition since 2008 includes the following:

  • Koyama was awarded a Philip Leverhulme Prize (2009) and the Japanese Physical Society Young Scientist Award (2010);
  • Percival was awarded the Royal Astronomical Society Fowler Prize (2008) and a Philip Leverhulme Prize (2008);
  • Wands was elected a fellow of the International Society on General Relativity (2010) and led a team awarded the Daiwa-Adrian Prize (2010) for joint UK-Japan collaboration with Kyoto University;
  • Masters was awarded an IAU Fellowship by the Gruber Foundation (2008-10) and a Leverhulme Trust Early Career Fellowship (2010-12);
  • Tasinato was awarded an STFC Advanced Fellowship (2010-15);
  • Tojeiro was awarded an STFC Ernest Rutherford fellowship (to be held at the University of St Andrews, from 2014-2019).

Invited plenary talks since 2008 include: Bacon: 11th School of Cosmology, IESC, Cargese, 2012; Trans-Regio winter school, Tonale, Italy, 2010; Bruni: Summer School on Cosmology and Gravity, Pune, India, 2011; Crittenden: Yukawa Institute for Theoretical Physics workshop “Cosmological Perturbation and CMB”, Kyoto, 2011; Koyama: “The Dark Universe”, Heidelberg, 2011; 17th Itzykson Meeting “Dark Energy and Modified Gravity”, Saclay, 2012; Maartens: 3rd Biennial Leopoldina Conference, Munich, 2008; Loops 2009, Beijing, 2009; Maraston: “From Re-ionization to Exoplanets: Spitzer’s Growing Legacy”, Caltech 2009; IAU symposium 277 “Tracing galaxies and their ancestors in the land of our ancestors”, Burkina Faso, 2010; Masters: invited discourse at IAU General Assembly, Beijing, 2012; “Cosmic flows – observations and simulations”, Marseille, 2013; Nichol: IAP Colloquium, Paris, 2010; “The Return of de Sitter II”, MPA, Garching, 2013; Percival: Space Telescope Science Institute symposium “A Decade of Dark Energy”, Baltimore, 2008; Les Houches School of Physics “Post-Planck Cosmology”, 2013; Tasinato: “Planck and the Early Universe”, Bonn, 2013; Thomas: “Synergistic Surveys of the Southern Sky”, Swinburne, 2010; “Fornax, Virgo, Coma et al: Stellar Systems in Highly Dense Environments”, ESO workshop, Garching, 2011; Wands: ICTP Cosmology Summer School, Trieste, 2008; Cosmo-12, Beijing, 2012.

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