13 citations · 33 across the 11 of their papers we have counts for
11 papers
Eclipses by Artificial Satellites to Measure the Angular Sizes of Stars
Leo W. H. Fung, Albert Wai Kit Lau, Richard Massey +1
Direct measurements of the angular sizes of stars (other than our Sun) are inherently limited by telescopes' optical diffraction limit. The spatial diffraction limit can be overcom…
LUVCam: A high-performance, low-cost, UV/optical camera for the future of astronomy in space
Aaron Tohuvavohu, Suresh Sivanandam, Jean-Christophe Fronteddu +23
Astronomy-grade cameras with robust performance and heritage in the space environment have long been costly, substantially limiting capacity for space-based astronomy and creating…
Remembering George Smoot
John Berliner, Tom Broadhurst, Martin Bucher +31
George Smoot (1945-2025) was a major figure in observational cosmology, particularly through his role in the precision measurement of the CMB dipole and the discovery of the primor…
False Alarm Rate based Statistical Detection Limit for Astronomical Photon Detectors
Albert Wai Kit Lau, Leo W. H. Fung, George F. Smoot
In ultra-fast astronomical observations featuring fast transients on sub-s time scales, the conventional Signal-to-Noise Ratio (SNR) threshold, often fixed at , becomes inad…
WTH! Wok the Hydrogen: Measurement of Galactic Neutral Hydrogen in Noisy Urban Environment Using Kitchenware
Leo W. H. Fung, Albert Wai Kit Lau, Ka Hung Chan +1
Astronomy observation is difficult in urban environments due to the background noise generated by human activities. Consequently, promoting astronomy in metropolitan areas is chall…
Initial On-Sky Performance testing of the Single-Photon Imager for Nanosecond Astrophysics (SPINA) system
Albert Wai Kit Lau, Nurzhan Shaimoldin, Zhanat Maksut +4
This work presents an initial on-sky performance measurement of the Single-Photon Imager for Nanosecond Astrophysics (SPINA) system, part of our Ultra-Fast Astronomy (UFA) program.…
Improved prior for adaptive optics point spread function estimation from science images: Application for deconvolution
A. Lau, R. JL. Fétick, B. Neichel +2
Access to knowledge of the point spread function (PSF) of adaptive optics(AO)-assisted observations is still a major limitation when processing AO data. This limitation is particul…
A SiPM photon-counting readout system for Ultra-Fast Astronomy
Albert Wai Kit Lau, Yan Yan Chan, Mehdi Shafiee +2
Very little work has been done searching for astrophysical transient optical emission in the millisecond to nanosecond regime with significant sensitivity. We call this regime "Ult…
Constraining HeII Reionization Detection Uncertainties via Fast Radio Bursts
Albert Wai Kit Lau, Ayan Mitra, Mehdi Shafiee +1
Context. The increased detection rate of Fast Radio Bursts (FRBs) makes it likely to get samples of sizes to in the near future. Because of…
On-sky silicon photomultiplier detector performance measurements for millisecond to sub-microsecond optical source variability studies
Albert Wai Kit Lau, Mehdi Shafiee, George F. Smoot +3
In our Ultra-Fast Astronomy (UFA) program, we aim to improve measurements of variability of astronomical targets on millisecond and shorter time scales. In this work, we present in…
Program objectives and specifications for the Ultra-Fast Astronomy observatory
Siyang Li, George F. Smoot, Bruce Grossan +4
We present program objectives and specifications for the first generation Ultra-Fast Astronomy (UFA) observatory which will explore a new astrophysical phase space by characterizin…