H. Kawakami

TL;DR: The Ultra-Violet/Optical Telescope (UVOT) as discussed by the authors is one of the three instruments flying aboard the Swift Gamma-ray Observatory, which is designed to capture the early (∼1 min) UV and optical photons from the afterglow of gamma-ray bursts in the 170-600 nm band as well as long term observations of these afterglows.

TL;DR: The UV/Optical Telescope (UVOT) as discussed by the authors is one of the three instruments flying aboard the Swift Gamma-ray Observatory, which is designed to capture the early (approximately 1 minute) UV and optical photons from the afterglow of gamma-ray bursts in the 170-600 nm band.

TL;DR: The XMM-OM instrument as mentioned in this paper extends the spec- tral coverage of the XMMNewton observatory into the ultra-fine and optical range, and provides imaging and time- resolved data on targets simultaneously with observations in the EPIC and RGS.

TL;DR: The XMM-OM instrument as mentioned in this paper extends the spectral coverage of the XMMNewton observatory into the ultraviolet and optical range, providing imaging and time-resolved data on targets simultaneously with observations in the EPIC and RGS.

TL;DR: In this article, the authors studied the factors that contribute to image modulation and showed that the illumination level and variations in event width as detected by the CCD camera can have a large effect.