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John Stott supervises 5 postgraduate research students. If these students have produced research profiles, these are listed below:

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Dr John Stott

Senior Lecturer in Astrophysics, Lecturer in Astrophysics

John Stott

Physics Building



PhD supervision

Gas and galaxies at cosmic noon:
The majority of the stars in the Universe were formed in an active period 7 to 11 billion years ago, an epoch known as ‘cosmic noon’. The reasons for this enhancement in star formation and its subsequent decline to the present day are not fully understood and so this is a major area of galaxy evolution research. Galaxies are governed by competing physical processes: 1. the fuelling of star formation by gas accreted from the cosmic web and 2. the quenching of star formation by feedback from supernovae and supermassive black holes. Their environment also plays an important role with galaxies in dense clusters quenching at early times. This PhD project will use spectroscopy to study the conditions of the gas within galaxies and the gas that surrounds them (the circumgalactic medium) in order to understand the balance of star formation fuelling and feedback at cosmic noon. The quasar sightline technique will be employed, which utilises the intense light from distance accreting supermassive black holes to observe the circumgalactic medium around galaxies along the line-of-sight to Earth. The results of this project will be physically interpreted through comparison with the outputs from state-of-the-art cosmological simulations of galaxy formation. This PhD project represents just one component of the research performed by the wider Astrophysics group at Lancaster University. Our PhD projects are offered on a competitive basis and are subject to availability of funding.

Research Interests

My research concentrates on distant star-forming galaxies and the evolution of the members of rich galaxy clusters. I am co-PI of the QSO Sightline And Galaxy Evolution survey (QSAGE), a 96 orbit Cycle 24 Hubble Space Telescope program. QSAGE uses the light from distant accreting black holes to probe the gas in the outskirts of galaxies, in order to discover why galaxies were forming stars at a much higher rate in the past and the nature of feedback processes. I am a core member of the KMOS Redshift One Spectroscopic Survey (KROSS) a resolved Halpha survey of 800 typical star-forming galaxies at redshift 1.

An up to date list of my publications on NASA ADS can be found here and my Google Scholar page is here

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