First On-Sky Demonstration of a Scintillation Correction technique using Tomographic Wavefront Sensing (2023)
Journal Article
Hartley, K. E., Farley, O. J., Townson, M. J., Osborn, J., & Wilson, R. (2023). First On-Sky Demonstration of a Scintillation Correction technique using Tomographic Wavefront Sensing. Monthly Notices of the Royal Astronomical Society, 520(3), 4134-4146. https://doi.org/10.1093/mnras/stad420

Scintillation noise significantly limits high precision ground-based photometry of bright stars. In this paper we present the first ever on-sky demonstration of scintillation correction. The technique uses tomographic wavefront sensing to estimate th... Read More about First On-Sky Demonstration of a Scintillation Correction technique using Tomographic Wavefront Sensing.

SHIMM: a versatile seeing monitor for astronomy (2023)
Journal Article
Perera, S., Wilson, R. W., Butterley, T., Osborn, J., Farley, O. J., & Laidlaw, D. J. (2023). SHIMM: a versatile seeing monitor for astronomy. Monthly Notices of the Royal Astronomical Society, 520(4), 5475-5486. https://doi.org/10.1093/mnras/stad339

Characterization of atmospheric optical turbulence is crucial for the design and operation of modern ground-based optical telescopes. In particular, the effective application of adaptive optics correction on large and extremely large telescopes relie... Read More about SHIMM: a versatile seeing monitor for astronomy.

Demonstrating 24-hour continuous vertical monitoring of atmospheric optical turbulence (2023)
Journal Article
Griffiths, R., Osborn, J., Farley, O., Butterley, T., Townson, M. J., & Wilson, R. (2023). Demonstrating 24-hour continuous vertical monitoring of atmospheric optical turbulence. Optics Express, 31(4), 6730-6740. https://doi.org/10.1364/oe.479544

We report what is believed to be the first example of fully continuous, 24-hour vertical monitoring of atmospheric optical turbulence. This is achieved using a novel instrument, the 24-hour Shack-Hartmann Image Motion Monitor (24hSHIMM). Optical turb... Read More about Demonstrating 24-hour continuous vertical monitoring of atmospheric optical turbulence.

Identifying optical turbulence profiles for realistic tomographic error in adaptive optics (2019)
Journal Article
Farley, O., Osborn, J., Morris, T., Fusco, T., Neichel, B., Correia, C., & Wilson, R. (2019). Identifying optical turbulence profiles for realistic tomographic error in adaptive optics. Monthly Notices of the Royal Astronomical Society, 488(1), 213-221. https://doi.org/10.1093/mnras/stz1669

For extremely large telescopes, adaptive optics will be required to correct the Earth’s turbulent atmosphere. The performance of tomographic adaptive optics is strongly dependent on the vertical distribution (profile) of this turbulence. An important... Read More about Identifying optical turbulence profiles for realistic tomographic error in adaptive optics.

Representative optical turbulence profiles for ESO Paranal by hierarchical clustering (2018)
Journal Article
Farley, O., Osborn, J., Morris, T., Sarazin, M., Butterley, T., Townson, M., …Wilson, R. (2018). Representative optical turbulence profiles for ESO Paranal by hierarchical clustering. Monthly Notices of the Royal Astronomical Society, 481(3), 4030-4037. https://doi.org/10.1093/mnras/sty2536

Knowledge of the optical turbulence profile is important in adaptive optics (AO) systems, particularly tomographic AO systems such as those to be employed by the next generation of 40-m class extremely large telescopes. Site characterization and moni... Read More about Representative optical turbulence profiles for ESO Paranal by hierarchical clustering.

Optical turbulence profiling with Stereo-SCIDAR for VLT and ELT (2018)
Journal Article
Osborn, J., Wilson, R., Sarazin, M., Butterley, T., Chacon, A., Derie, F., …Townson, M. (2018). Optical turbulence profiling with Stereo-SCIDAR for VLT and ELT. Monthly Notices of the Royal Astronomical Society, 478(1), 825-834. https://doi.org/10.1093/mnras/sty1070

Knowledge of the Earth’s atmospheric optical turbulence is critical for astronomical instrumentation. Not only does it enable performance verification and optimisation of existing systems but it is required for the design of future instruments. As a... Read More about Optical turbulence profiling with Stereo-SCIDAR for VLT and ELT.