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Personal profile

Research interests

I study the processing of gas within galaxy clusters, some of the largest gravitationally bound strucutres in the Universe.  These structures are permiated with hot and rapidly cooling gas and represent interesting and unique labratories in which to study galaxy evolution processes.

I use multi-wavelength observations taken by a multitude of different telescopes to study how the hot gas cools, condenses onto the central galaxy and its supermassive black hole, drives star formation and outbursts from AGN which ultimately disrupt the the gas, slowing its cooling in a perpetual feedback cycle. 

To study this wide array of processes I use spectroscopic observations to constrain the kinematics of the gas to understand how it is moving.  By studying the energetics and physical properties of the gas I investigate the processes responcible for illuminating it and moving it about within the cluster.  Finally by looking at chemical tracers within the gas I can constrain where it has origonated and how it has been processed by the system.

Combining all of this together accross multiple gas phases is nessasery to develope a full understanding of the physical processes governing galaxy evolution within the cluster core.  Lessons learned within these environments can then be applied to the larger galaxy population to help us understand why our Universe is the way it is.

Education/Academic qualification

Astrophysics, Doctor of Philosophy, Durham University

1 Oct 200830 Sep 2012

Astronomy, Space Science and Astrophysics, Master of Physics

1 Oct 200430 Jun 2008

External positions

Research Associate at the Institute for Astronomy, University of Cambridge

1 Oct 201730 Sep 2018

Research Associate, CRAL - Observatoire de Lyon

5 Oct 201530 Sep 2017

Research Associate, Observatoire de Paris

8 Nov 201230 Sep 2015


  • QB Astronomy

Fingerprint Dive into the research topics where Stephen Hamer is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 1 Similar Profiles
galaxies Physics & Astronomy
gases Physics & Astronomy
universe Physics & Astronomy
gas cooling Physics & Astronomy
lessons learned Physics & Astronomy
high temperature gases Physics & Astronomy
illuminating Physics & Astronomy
tracers Physics & Astronomy

Research Output 2010 2018

9 Citations (Scopus)
1 Downloads (Pure)

A Galaxy-Scale Fountain of Cold Molecular Gas Pumped by a Black Hole

Tremblay, G. R., Combes, F., Oonk, J. B. R., Russell, H. R., McDonald, M. A., Gaspari, M., Husemann, B., Nulsen, P. E. J., McNamara, B. R., Hamer, S. L., O'Dea, C. P., Baum, S. A., Davis, T. A., Donahue, M., Voit, G. M., Edge, A. C., Blanton, E. L., Bremer, M. N., Bulbul, E., Clarke, T. E. & 19 others, David, L. P., Edwards, L. O. V., Eggerman, D. A., Fabian, A. C., Forman, W. R., Jones, C., Kerman, N., Kraft, R. P., Li, Y., Powell, M. C., Randall, S. W., Salomé, P., Simionescu, A., Su, Y., Sun, M., Urry, C. M., Vantyghem, A. N., Wilkes, B. J. & ZuHone, J. A., 17 Sep 2018, In : Astrophysical Journal. 865, 1, p. 1-24 24 p., 13.

Research output: Contribution to journalArticle

Open Access

How we discovered that supermassive black holes can power enormous ‘galactic fountains’

Hamer, S., 14 Nov 2018, The Conversation.

Research output: Contribution to specialist publicationArticle

5 Citations (Scopus)
16 Downloads (Pure)

Ionised gas structure of 100 kpc in an over-dense region of the galaxy group COSMOS-Gr30 at z ~ 0.7

Epinat, B., Contini, T., Finley, H., Boogaard, L., Guérou, A., Brinchmann, J., Carton, D., Michel-Dansac, L., Bacon, R., Cantalupo, S., Carollo, M., Hamer, S., Kollatschny, W., Krajnović, D., Marino, R. A., Richard, J., Soucail, G., Weilbacher, P. M. & Wisotzki, L., 5 Jan 2018, In : Astronomy & Astrophysics. 609, p. 1-21 21 p., A40.

Research output: Contribution to journalArticle

Open Access
6 Citations (Scopus)
13 Downloads (Pure)

Revealing the velocity structure of the filamentary nebula in NGC 1275 in its entirety

Gendron-Marsolais, M., Hlavacek-Larrondo, J., Martin, T. B., Drissen, L., McDonald, M., Fabian, A. C., Edge, A. C., Hamer, S. L., McNamara, B. & Morrison, G., 1 Sep 2018, In : Monthly Notices of the Royal Astronomical Society: Letters. 479, 1, p. L28-L33 6 p.

Research output: Contribution to journalArticle

Open Access
38 Citations (Scopus)
13 Downloads (Pure)

Shaken Snow Globes: Kinematic Tracers of the Multiphase Condensation Cascade in Massive Galaxies, Groups, and Clusters

Gaspari, M., McDonald, M., Hamer, S. L., Brighenti, F., Temi, P., Gendron-Marsolais, M., Hlavacek-Larrondo, J., Edge, A. C., Werner, N., Tozzi, P., Sun, M., Stone, J. M., Tremblay, G. R., Hogan, M. T., Eckert, D., Ettori, S., Yu, H., Biffi, V. & Planelles, S., 23 Feb 2018, In : Astrophysical Journal. 854, 2, 17 p., 167.

Research output: Contribution to journalArticle

Open Access