Personal profile
Summary
I am a Reader and UKRI Future Leaders Fellow in the Institute of Cosmology and Gravitation and a member of the Gravitational-Wave Physics Group.
Gravitational waves were first detected in 2015 by the Laser Interferometer Gravitational-wave Observatory (LIGO). This signal, named GW150914, was produced when two black holes collided about 1.3 billion years ago. Since then, we have detected a total of 90 signals from the merger of black holes and two signals from the collisions of neutron stars. One of these signals, GW170817, was also observed across the electromagnetic spectrum making it the first multi-messenger (electromagnetic and gravitational waves) observation.
The gravitational-wave group is part of the LIGO Scientific Collaboration (LSC), which consists of around 1500 researchers from over 100 different institutes from across the world. As part of the LSC we are searching for gravitational waves from colliding black holes and neutron stars, as well as other sources. In addition to detection, the group’s research focusses on developing techniques to detect gravitational waves from new sources, detecting gravitational waves from continuous sources, estimating the equation of state of neutron stars, and characterising the LIGO detectors. Our research also looks at extracting astrophysical and cosmological information from the observed gravitational-wave signals to learn more about our Universe.
Our group is also involved in the Laser Interferometer Space Antenna (LISA), and the science case for the future Einstein Telescope.
As well as studying gravitational waves, our group is also involved in the Gravitational-wave Optical Transient Observer (GOTO). The project's primary objective to identify optical counterparts to gravitational-wave events. GOTO consists of multiple wide-field telescopes on a single mount; currently there are 4 located in La Palma covering ~18 square degrees. Soon, we will add more telescopes in La Palma to bring the total up 16. We are also in the process of building another GOTO in Australia.
Research Interests
My research focusses on a number of areas of gravitational-wave astronomy, but in particular:
- Characterisation of the LIGO gravitational-wave detectors
- Extracting gravitational-wave signals from LIGO/Virgo data, particularly those from compact object mergers
- Observations of electromagnetic counterparts to gravitational-wave events with GOTO
I have held and still hold and number of roles within the gravitational-wave community. Highlights include:
- Portsmouth PI for GOTO (2019 - present)
- Outreach and Public Engagement Champion for the ICG (2018 - present)
- Member of Gravitationl Wave Allies (2016 - present)
- Co-chair of LIGO Detector Characterisation (2019 - 2021)
- Dignity & Respect Champion for the ICG (2018 - 2021)
- Member of the LSC Program Committee (2018 - 2019)
- Member of the GWOSC Review Committee (2015 - 2019)
- Co-chair of Data Quality for the LIGO Detector Characterisation Group (2015 - 2019)
Biography
I received an MPhys in Physics, Astrophysics and Cosmology from Lancaster University in 2009, as well as the chancellor’s medal. I then moved to Cardiff University to study gravitational waves and work in the LIGO Scientific Collaboration. My graduate research focussed on electromagnetic follow-up of gravitational-wave events; I received my PhD in 2013. I then moved to the University of Wisconsin-Milwaukee where my research diversified to characterising the Advanced LIGO detectors. In 2015 I continued my doctoral research at Syracuse University, researching the application of data quality to the search for gravitational waves from the merger of compact objects. In 2017 I returned to Cardiff University as a Sêr Cymru MSCA COFUND Fellow. I then moved to the ICG as a senior lecturer in August 2018 to start a gravitational-wave research group with Andy Lundgren and Ian Harry. I was awarded a UKRI Future Leaders Fellowship in October 2020 and became a Reader of Astrophysics in September 2021.
Teaching Responsibilities
- 2018 - present - MPhys/BSc student projects (Third and Fourth Year)
- 2018-2020 - Universe - Planetary systems, stars and galaxies (Second Year)
Media Availability
I am available and happy to discuss and/or answer any questions about my research.
Education/Academic qualification
Ph.D., Electromagnetic Follow-Up of Gravitational-Wave Candidate Events, Cardiff University
1 Oct 2009 → 31 Jul 2013
Award Date: 31 May 2013
External positions
Sêr Cymru Marie Skłodowska-Curie Actions COFUND Fellow, Cardiff University
1 Nov 2017 → 31 Jul 2018
Postdoctoral Research Associate, Cardiff University
1 Jul 2017 → 31 Oct 2017
Postdoctoral Research Associate, Syracuse University
1 Apr 2015 → 30 Jun 2017
Postdoctoral Research Associate, University of Wisconsin-Milwaukee
1 Aug 2013 → 31 Mar 2015
Keywords
- QB Astronomy
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 16 Peace, Justice and Strong Institutions
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
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The missing multipole problem: investigating biases from model starting frequency in gravitational-wave analyses
Ursell, R., Hoy, C. G., Harry, I. & Nuttall, L., 1 Apr 2026, In: Monthly Notices of the Royal Astronomical Society. 547, 3, 15 p., stag398.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Goto065054+593624: a 8.5 mag amplitude dwarf nova identified in real time via Kilonova Seekers
Killestein, T. L., Ramsay, G., Kennedy, M., Kelsey, L., Steeghs, D., Littlefair, S., Godson, B., Lyman, J., Pursiainen, M., Warwick, B., Krawczyk, C., Nuttall, L. K., Wickens, E., Alexandrov, S. D., da Silva, C. M., Leadbeater, R., Ackley, K., Dyer, M. J., Jiménez-Ibarra, F. & Ulaczyk, K. & 42 others, , 1 Jul 2025, In: Astronomy and Astrophysics. 699, 7, p. 1-14 14 p., A8.Research output: Contribution to journal › Article › peer-review
Open AccessFile9 Downloads (Pure) -
GRB 241105A: A test case for GRB classification and rapid r-process nucleosynthesis channels
Dimple, Gompertz, B. P., Levan, A. J., Malesani, D. B., Laskar, T., Bala, S., Chrimes, A. A., Heintz, K., Izzo, L., Lamb, G. P., O'Neill, D., Palmerio, J. T., Saccardi, A., Anderson, G. E., De Barra, C., Huang, Y., Kumar, A., Li, H., McBreen, S. & Mukherjee, O. & 68 others, , 1 Nov 2025, In: Monthly Notices of the Royal Astronomical Society. 544, 1, p. 548-571 24 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Downloads (Pure) -
GW231123: A Binary Black Hole Merger with Total Mass 190–265 M⊙
LIGO Scientific Collaboration, Virgo Collaboration, KAGRA Collaboration, Cabourn Davies, G. S., Harry, I., Hoy, C. G., Leyde, K. H. M., Lundgren, A., Nuttall, L. & Williams, M. J., 1 Nov 2025, In: The Astrophysical Journal Letters. 993, 1, 37 p., L25.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
GW250114: testing Hawking's area law and the Kerr nature of black holes
The LIGO Scientific Collaboration, Virgo Collaboration, KAGRA Collaboration, Baker, T., Davies, G. S. C., Colangeli, E., Green, S. R., Harry, I. W., Hoy, C. G., Keitel, D., Leyde, K., Lundgren, A. P., Macas, R., Noller, J., Nuttall, L. K., Tolley, A. E., Wickens, E. G. & Williams, M. J., 10 Sept 2025, In: Physical Review Letters. 135, 27 p., 111403.Research output: Contribution to journal › Letter › peer-review
Open AccessFile1 Downloads (Pure)
Datasets
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Data availability statement for 'All-sky search for long-duration gravitational-wave transients in the second Advanced LIGO observing run'.
Keitel, D. (Creator), Lundgren, A. (Creator), Mcisaac, C. (Creator), Nuttall, L. (Creator) & Harry, I. (Creator), American Physical Society, 14 May 2019
Dataset
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Data availability statement for 'Directional limits on persistent gravitational waves using data from Advanced LIGO's first two observing runs'.
Harry, I. (Creator), Keitel, D. (Creator), Lundgren, A. (Creator), Nuttall, L. (Creator) & Williamson, A. (Creator), American Physical Society, 4 Sept 2019
Dataset
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Data availability statement for 'A search for tensor, vector, and scalar polarizations in the stochastic gravitational-wave background'.
Harry, I. (Creator), Keitel, D. (Creator), Lundgren, A. (Creator), Nuttall, L. (Creator) & Williamson, A. (Creator), American Physical Society, 16 May 2018
Dataset
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Data availability statement for 'Model comparison from LIGO-Virgo data on GW170817's binary components and consequences for the merger remnant'.
Harry, I. (Creator), Lundgren, A. (Creator), Mcisaac, C. (Creator), Nuttall, L. (Creator) & Williamson, A. (Creator), IOP Publishing, 16 Jan 2020
Dataset
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Data availability statement for 'Full band all-sky search for periodic gravitational waves in the O1 LIGO data'.
Harry, I. (Creator), Keitel, D. (Creator), Lundgren, A. (Creator), Nuttall, L. (Creator) & Williamson, A. (Creator), American Physical Society, 11 May 2018
Dataset
Projects
- 4 Finished
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Gravitational Waves at the University of Portsmouth
Harry, I. (PI), Lundgren, A. (CoI) & Nuttall, L. (CoI)
Science and Technology Facilities Council
1/09/21 → 31/08/24
Project: Research
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Multi-band multi-messenger astrophysics with LIGO, LISA and GOTO
Nuttall, L. (PI)
1/10/20 → 30/09/24
Project: Research
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Pinpointing the Origin of Noisy Compact Binary Mergers
Nuttall, L. (PI)
Science and Technology Facilities Council
1/09/20 → 31/08/22
Project: Research
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LISA Ground Segment
Harry, I. (PI) & Nuttall, L. (CoI)
Science and Technology Facilities Council, UK Space Agency
1/04/20 → 31/03/21
Project: Research
Activities
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LISA UK Ground Segment Meeting
Williams, M. (Speaker), Hoy, C. (Speaker), Cabourn Davies, G. (Participant), Harry, I. (Participant) & Nuttall, L. (Participant)
10 Jan 2024 → 12 Jan 2024Activity: Participating in or organising an event types › Participation in workshop, seminar, course
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Data Quality Challenges in LIGO and LISA¶
Nuttall, L. (Speaker)
13 Nov 2023Activity: Talk or presentation types › Invited talk
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Podcast for Missing Links Show
Nuttall, L. (Speaker)
16 Jul 2023Activity: Talk or presentation types › Oral presentation
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Early warning detection of massive black hole binary mergers with LISA
Nuttall, L. (Speaker)
7 Jul 2023Activity: Talk or presentation types › Oral presentation
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Press/Media
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Next-generation planetary missions could hunt for gravitational waves, say astronomers
9/02/21 → 10/02/21
2 items of Media coverage
Press/Media: Expert comment
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Why that massive black-hole merger is important, battling quantum decoherence on two fronts
2/09/20 → 8/10/20
5 items of Media coverage, 1 Media contribution
Press/Media: Research cited
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Astronomers find mystery object in ‘mass gap’
2/07/20 → 3/07/20
2 items of Media coverage
Press/Media: Research cited
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Astronomers May Have Found the Closest Black Hole to Earth
6/05/20
1 item of Media coverage
Press/Media: Research cited