Microwave Receiving System Based on Cryogenic Sensors for the Optical Big Telescope Alt-Azimuth
Yurii Balega,
Grigory Bubnov,
Artem Chekushkin,
Victor Dubrovich,
Valerian Edelman,
Aleksandra Gunbina,
Sergey Kapustin,
Tatyana Khabarova,
Dmitrii Kukushkin,
Igor Lapkin,
Maria Mansfeld,
Andrei Maruhno,
Vladimir Parshin,
Aleksey Raevskiy,
Vladislav Stolyarov,
Mikhail Tarasov,
Gennady Valyavin,
Vyacheslav Vdovin,
Grigory Yakopov,
Renat Yusupov,
Petr Zemlyanukha,
Igor Zinchenko
Affiliations
Yurii Balega
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Grigory Bubnov
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
Artem Chekushkin
The Kotel’nikov Institute of Radio Engineering and Electronics of RAS, Moscow 125009, Russia
Victor Dubrovich
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Valerian Edelman
P.L. Kapitza Institute for Physical Problems RAS, Moscow 119334, Russia
Aleksandra Gunbina
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
Sergey Kapustin
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Tatyana Khabarova
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
Dmitrii Kukushkin
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Igor Lapkin
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
Maria Mansfeld
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Andrei Maruhno
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Vladimir Parshin
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
Aleksey Raevskiy
Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Nizhniy Novgorod 603155, Russia
Vladislav Stolyarov
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Mikhail Tarasov
The Kotel’nikov Institute of Radio Engineering and Electronics of RAS, Moscow 125009, Russia
Gennady Valyavin
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Vyacheslav Vdovin
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Grigory Yakopov
Special Astrophysical Observatory RAS, Nizhnii Arkhyz 369167, Russia
Renat Yusupov
The Kotel’nikov Institute of Radio Engineering and Electronics of RAS, Moscow 125009, Russia
Petr Zemlyanukha
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
Igor Zinchenko
A.V. Gaponov-Grekhov Institute of Applied Physics RAS, Nizhniy Novgorod 603950, Russia
This article presents the results of evaluating the possibility of conducting radio astronomy studies in the windows of atmospheric transparency ~100, ~230, and ~350 GHz using the optical Big Telescope Alt-Azimuthal (BTA) of the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS). A list of some promising astronomical tasks is proposed. The astroclimat conditions at the BTA site and possible optical, cryogenic, and mechanical interfaces for mounting a superconducting radio receiver at the focus of the optical telescope are considered. As a receiving system, arrays of detectors cooled to ~0.3 K based on the superconductor–insulator–normal metal–insulator–superconductor (SINIS) structure are proposed. The implementation of the project will make it possible to use the BTA site of the SAO RAS not only to solve some astronomical problems (it is possible to consider the implementation of a single observatory, the VLBI (very-long-baseline interferometry) mode in the Suffa, EHT (Event Horizon Telescope), and Millimetron projects), but it will also be used to test various cryogenic detectors in a real observatory.
