Status of the VERITAS Stellar Intensity Interferometry (VSII) System
D. B Kieda, Jonathan Davis, Tugdual LeBohec, Mike Lisa, Nolan K., Matthews (for the VERITAS Collaboration)
TL;DR
The paper discusses the enhancements and capabilities of the VERITAS Stellar Intensity Interferometry system, enabling ultra-high resolution astronomical observations using IACT arrays with improved sensitivity and data processing.
Contribution
It presents recent upgrades to the VERITAS-SII system, increasing sensitivity and processing speed for high-resolution stellar observations.
Findings
Enhanced sensitivity of VSII system
Improved data processing speed
Plans for future upgrades
Abstract
The VERITAS Imaging Air Cherenkov Telescope array (IACT) was augmented in 2019 with high-speed focal plane electronics to allow the use of VERITAS for Stellar Intensity Interferometry (SII) observations. Since that time, several improvements have been implemented to increase the sensitivity of the VERITAS Stellar Intensity Interferometer (VSII) and increase the speed of nightly data processing. This poster will describe the use of IACT arrays for performing ultra-high resolution (sub-milliarcsecond) astronomical observations at short visible wavelengths. The poster presentation will include a description of the VERITAS-SII focal plane, data acquisition, and data analysis systems. The poster concludes with a description of plans for future upgrades of the VSII instrument.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Atmospheric Ozone and Climate · Geophysics and Gravity Measurements