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Article ; Online: Verification of the Optical System of the 9.7-m Prototype Schwarzschild-Couder Telescope

Adams, C. / Alfaro, R. / Ambrosi, G. / Ambrosio, M. / Aramo, C. / Benbow, W. / Bertucci, B. / Bissaldi, E. / Bitossi, M. / Boiano, A. / Bonavolonta, C. / Bose, R. / Brill, A. / Buckley, J. H. / Byrum, K. / Cameron, R. A. / Capasso, M. / Caprai, M. / Covault, C. E. /
Venere, L. Di / Fegan, S. / Feng, Q. / Fiandrini, E. / Furniss, A. / Garczarczyk, M. / Garfias, F. / Gent, A. / Giglietto, N. / Giordano, F. / Gonz'alez, M. M. / Halliday, R. / Hervet, O. / Hughes, G. / Humensky, T. B. / Ionica, M. / Iriarte, A. / Jin, W. / Kaarat, P. / Kieda, D. / Kim, B. / Licciulli, F. / Limon, M. / Loporchio, S. / Masone, V. / Meures, T. / Mode, B. A. W. / Mukherjee, R. / Nieto, D. / Okumura, A. / Otte, N. / Palombara, N. La / Pantaleo, F. R. / Paoletti, R. / Pareschi, G. / Petrashyk, A. / Powell, J. / Powell, K. / Ribeiro, D. / Roache, E. / Rousselle, J. / Rugliancich, A. / Ru'iz-D'iaz-Soto, J. / Santander, M. / Schlenstedt, S. / Scuderi, S. / Shang, R. / Sironi, G. / Stevenson, B. / Stiaccini, L. / Taylor, L. P. / Tosti, L. / Tovmassian, G. / Vagelli, V. / Valentino, M. / Vandenbroucke, J. / Vassiliev, V. V. / Wakely, S. P. / Wilcox, P. / Williams, D. A. / Yu, P.

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 ... ...

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.
Keywords covid19
Publisher ArXiv
Document type Article ; Online
DOI 10.1117/12.2568134
Database COVID19

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