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27 April 2024

» arxiv » 2010.13027

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Verification of the Optical System of the 9.7-m Prototype Schwarzschild-Couder Telescope
C. Adams ; R. Alfaro ; G. Ambrosi ; M. Ambrosio ; C. Aramo ; W. Benbow ; B. Bertucci ; E. Bissaldi ; M. Bitossi ; A. Boiano ; C. Bonavolontà ; R. Bose ; A. Brill ; J. H. Buckley ; K. Byrum ; R. A. Cameron ; M. Capasso ; M. Caprai ; C. E. Covault ; L. Di Venere ; S. Fegan ; Q. Feng ; E. Fiandrini ; A. Furniss ; M. Garczarczyk ; F. Garfias ; A. Gent ; N. Giglietto ; F. Giordano ; M. M. González ; R. Halliday ; O. Hervet ; G. Hughes ; T. B. Humensky ; M. Ionica ; A. Iriarte ; W. Jin ; P. Kaarat ; D. Kieda ; B. Kim ; F. Licciulli ; M. Limon ; S. Loporchio ; V. Masone ; T. Meures ; B. A. W. Mode ; R. Mukherjee ; D. Nieto ; A. Okumura ; N. Otte ; N. La Palombara ; F. R. Pantaleo ; R. Paoletti ; G. Pareschi ; A. Petrashyk ; J. Powell ; K. Powell ; D. Ribeiro ; E. Roache ; J. Rousselle ; A. Rugliancich ; J. Ruíz-Díaz-Soto ; M. Santander ; S. Schlenstedt ; S. Scuderi ; R. Shang ; G. Sironi ; B. Stevenson ; L. Stiaccini ; L. P. Taylor ; L. Tosti ; G. Tovmassian ; V. Vagelli ; M. Valentino ; J. Vandenbroucke ; V. V. Vassiliev ; S. P. Wakely ; P. Wilcox ; D. A. Williams ; P. Yu ;
Date:	25 Oct 2020
Abstract:	For the first time in the history of ground-based $gamma$-ray astronomy, the on-axis performance of the dual mirror, aspheric, aplanatic Schwarzschild-Couder optical system has been demonstrated in a $9.7$-m aperture imaging atmospheric Cherenkov telescope. The novel design of the prototype Schwarzschild-Couder Telescope (pSCT) is motivated by the need of the next-generation Cherenkov Telescope Array (CTA) observatory to have the ability to perform wide ($geq 8^{circ}$) field-of-view observations simultaneously with superior imaging of atmospheric cascades (resolution of $0.067^{circ}$ per pixel or better). The pSCT design, if implemented in the CTA installation, has the potential to improve significantly both the $gamma$-ray angular resolution and the off-axis sensitivity of the observatory, reaching nearly the theoretical limit of the technique and thereby making a major impact on the CTA observatory sky survey programs, follow-up observations of multi-messenger transients with poorly known initial localization, as well as on the spatially resolved spectroscopic studies of extended $gamma$-ray sources. This contribution reports on the initial alignment procedures and point-spread-function results for the challenging segmented aspheric primary and secondary mirrors of the pSCT.
Source:	arXiv, 2010.13027
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