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| Format: | Preprint |
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2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.03460 |
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| _version_ | 1866913597790093312 |
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| author | Genoni, Matteo Dekker, Hans Covino, Stefano Cirami, Roberto Scalera, Marcello Agostino Bissel, Lawrence Seifert, Walter Calcines, Ariadna Avila, Gerardo Stuermer, Julian Ritz, Christopher Lunney, David Miller, Chris Watson, Stephen Waring, Chris Castilho, Bruno Vaz De Arruda, Marcio Verducci, Orlando Coretti, Igor Oggioni, Luca Pariani, Giorgio Redaelli, Edoardo Alberto Maria D'Ambrogio, Matteo Calderone, Giorgio Porru, Matteo Stilz, Ingo Smiljanic, Rodolfo Cupani, Guido Franchini, Mariagrazia Scaudo, Andrea Geers, Vincent De Caprio, Vincenzo Auria, Domenico D' Sibalic, Mina Opitom, Cyrielle Cescutti, Gabriele Odorico, Valentina D' Janssen, Ruben Sanchez Quirrenbach, Andreas Barbuy, Beatriz Cristiani, Stefano Di Marcantonio, Paolo |
| author_facet | Genoni, Matteo Dekker, Hans Covino, Stefano Cirami, Roberto Scalera, Marcello Agostino Bissel, Lawrence Seifert, Walter Calcines, Ariadna Avila, Gerardo Stuermer, Julian Ritz, Christopher Lunney, David Miller, Chris Watson, Stephen Waring, Chris Castilho, Bruno Vaz De Arruda, Marcio Verducci, Orlando Coretti, Igor Oggioni, Luca Pariani, Giorgio Redaelli, Edoardo Alberto Maria D'Ambrogio, Matteo Calderone, Giorgio Porru, Matteo Stilz, Ingo Smiljanic, Rodolfo Cupani, Guido Franchini, Mariagrazia Scaudo, Andrea Geers, Vincent De Caprio, Vincenzo Auria, Domenico D' Sibalic, Mina Opitom, Cyrielle Cescutti, Gabriele Odorico, Valentina D' Janssen, Ruben Sanchez Quirrenbach, Andreas Barbuy, Beatriz Cristiani, Stefano Di Marcantonio, Paolo |
| contents | In the era of Extremely Large Telescopes, the current generation of 8-10m facilities are likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrograph (CUBES) has been designed to provide high instrumental efficiency ( $>$ 37\%) observations in the near UV (305-400 nm requirement, 300-420 nm goal) at a spectral resolving power of R $>$ 20, 000 (with a lower-resolution, sky-limited mode of R $\sim$ 7, 000). With the design focusing on maximizing the instrument throughput (ensuring a Signal to Noise Ratio -SNR- $\sim$ 20 per spectral resolution element at 313 nm for U $\sim$ 17.5 mag objects in 1h of observations), it will offer new possibilities in many fields of astrophysics: i) access to key lines of stellar spectra (e.g. lighter elements, in particular Beryllium), extragalactic studies (e.g. circumgalactic medium of distant galaxies, cosmic UV background) and follow-up of explosive transients. We present the CUBES instrument design, currently in Phase-C and approaching the final design review, summarizing the hardware architecture and interfaces between the different subsystems as well as the relevant technical requirements. We describe the optical, mechanical, electrical design of the different subsystems (from the telescope adapter and support structure, through the main opto-mechanical path, including calibration unit, detector devices and cryostat control, main control electronics), detailing peculiar instrument functions like the Active Flexure Compensation (AFC). Furthermore, we outline the AITV concept and the main instrument operations giving an overview of its software ecosystem. Installation at the VLT is planned for 2028-2029 and first science operations in late 2029. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_03460 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | CUBES, the Cassegrain U-Band Efficient Spectrograph: towards final design review Genoni, Matteo Dekker, Hans Covino, Stefano Cirami, Roberto Scalera, Marcello Agostino Bissel, Lawrence Seifert, Walter Calcines, Ariadna Avila, Gerardo Stuermer, Julian Ritz, Christopher Lunney, David Miller, Chris Watson, Stephen Waring, Chris Castilho, Bruno Vaz De Arruda, Marcio Verducci, Orlando Coretti, Igor Oggioni, Luca Pariani, Giorgio Redaelli, Edoardo Alberto Maria D'Ambrogio, Matteo Calderone, Giorgio Porru, Matteo Stilz, Ingo Smiljanic, Rodolfo Cupani, Guido Franchini, Mariagrazia Scaudo, Andrea Geers, Vincent De Caprio, Vincenzo Auria, Domenico D' Sibalic, Mina Opitom, Cyrielle Cescutti, Gabriele Odorico, Valentina D' Janssen, Ruben Sanchez Quirrenbach, Andreas Barbuy, Beatriz Cristiani, Stefano Di Marcantonio, Paolo Instrumentation and Methods for Astrophysics In the era of Extremely Large Telescopes, the current generation of 8-10m facilities are likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrograph (CUBES) has been designed to provide high instrumental efficiency ( $>$ 37\%) observations in the near UV (305-400 nm requirement, 300-420 nm goal) at a spectral resolving power of R $>$ 20, 000 (with a lower-resolution, sky-limited mode of R $\sim$ 7, 000). With the design focusing on maximizing the instrument throughput (ensuring a Signal to Noise Ratio -SNR- $\sim$ 20 per spectral resolution element at 313 nm for U $\sim$ 17.5 mag objects in 1h of observations), it will offer new possibilities in many fields of astrophysics: i) access to key lines of stellar spectra (e.g. lighter elements, in particular Beryllium), extragalactic studies (e.g. circumgalactic medium of distant galaxies, cosmic UV background) and follow-up of explosive transients. We present the CUBES instrument design, currently in Phase-C and approaching the final design review, summarizing the hardware architecture and interfaces between the different subsystems as well as the relevant technical requirements. We describe the optical, mechanical, electrical design of the different subsystems (from the telescope adapter and support structure, through the main opto-mechanical path, including calibration unit, detector devices and cryostat control, main control electronics), detailing peculiar instrument functions like the Active Flexure Compensation (AFC). Furthermore, we outline the AITV concept and the main instrument operations giving an overview of its software ecosystem. Installation at the VLT is planned for 2028-2029 and first science operations in late 2029. |
| title | CUBES, the Cassegrain U-Band Efficient Spectrograph: towards final design review |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2412.03460 |