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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

HATS: A Ground-Based Telescope to Explore the THz Domain

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Gimenez de Castro, C. Guillermo [1, 2] ; Raulin, Jean-Pierre [1] ; Valio, Adriana [1] ; Alaia, Guilherme [1] ; Alvarenga, Vinicius [3] ; Bortolucci, Emilio Carlos [4] ; Fernandes, Silvia Helena [1] ; Francile, Carlos [5] ; Giorgetti, Tiago [1] ; Kudaka, Amauri Shossei [1] ; Lopez, Fernando Marcelo [1] ; Marcon, Rogerio [6, 7] ; Marun, Adolfo [8] ; Zaquela, Marcio [9]
Total Authors: 14
[1] Univ Presbiteriana Mackenzie, Escola Engn, Ctr Radio Astron & Astrofis Mackenzie, Rua Consolacao 896, Sao Paulo 01302907 - Brazil
[2] CONICET UBA, Inst & Astron & Fis Espacio, CC 67 Suc 28, Buenos Aires 1428, DF - Argentina
[3] Univ Presbiteriana Mackenzie, Escola Engn, Mackgraphe, Rua Consolacao 896, Sao Paulo 01302907 - Brazil
[4] Univ Estadual Campinas, Ctr Componentes Semicondutores & Nanotecnol, Campinas - Brazil
[5] Univ Nacl San Juan, Observ Astron Felix Aguilar, San Juan - Argentina
[6] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Campinas, SP - Brazil
[7] Observ Solar Bernard Lyot, Campinas, SP - Brazil
[8] CONICET UNSJ, Inst Ciencias Astron Tierra & Espacio, San Juan - Argentina
[9] Adv Embedded R&D Lab, Sao Paulo - Brazil
Total Affiliations: 9
Document type: Journal article
Source: SOLAR PHYSICS; v. 295, n. 4 APR 20 2020.
Web of Science Citations: 0

The almost unexplored frequency window from submillimeter to mid-infrared (mid-IR) may bring new clues about the particle acceleration and transport processes and the atmospheric thermal response during solar flares. Because of its technical complexity and the special atmospheric environment needed, observations at these frequencies are very sparse. The High Altitude THz Solar Photometer (HATS) is a full-Sun ground-based telescope designed to observe the continuum from the submillimeter to the mid-IR. It has a 457-mm spherical mirror with the sensor in its primary focus. The sensor is a Golay cell with high sensitivity in a very wide frequency range. The telescope has a polar mount, and a custom-built data acquisition system based on a 32 ksamples per second, 24 bits (72 dB dynamic range), 8 channels analog-to-digital board. Changing only the composition of the low- and band-pass filters in front of the Golay cell, the telescope can be setup to detect very different frequency bands; making the instrument very versatile. In this article we describe the telescope characteristics and its development status. Moreover, we give estimates of the expected fluxes during flares. (AU)

FAPESP's process: 13/24155-3 - Solar flare diagnostic in an unprecedented frequency range from microwaves to THz frequencies: challenges for interpretation (flat)
Grantee:Carlos Guillermo Giménez de Castro
Support type: Research Projects - Thematic Grants