A. U. Postigo, C. Thöne, T. Muñoz-Darias, Á. Labiano, A. Paz, Marísa Luisa García Vargas, V. Dhillon, L. Izzo, A. Kann, Ana Pérez, Javier Piqueras López, José Fernández, A. Herrero, D. Barrado, M. Blazek, J. Casares, Matilde Fernández, Jorge García Rojas, A. Gardini, R. Garrido, R. Delgado, N. Huelamo, N. Lodieu, M. Maldonado, J. Ortiz, C. R. Almeida, E. Blanco, S. Simón-Díaz, A. Watson
{"title":"GATOS: A fast multi-channel imager and spectrograph for the Gran Telescopio Canarias","authors":"A. U. Postigo, C. Thöne, T. Muñoz-Darias, Á. Labiano, A. Paz, Marísa Luisa García Vargas, V. Dhillon, L. Izzo, A. Kann, Ana Pérez, Javier Piqueras López, José Fernández, A. Herrero, D. Barrado, M. Blazek, J. Casares, Matilde Fernández, Jorge García Rojas, A. Gardini, R. Garrido, R. Delgado, N. Huelamo, N. Lodieu, M. Maldonado, J. Ortiz, C. R. Almeida, E. Blanco, S. Simón-Díaz, A. Watson","doi":"10.1117/12.2561588","DOIUrl":"https://doi.org/10.1117/12.2561588","url":null,"abstract":"GATOS (GTC Astrophysical Transient Octuple-channel imaging Spectrograph) is a multi-channel imager and spectrograph capable of simultaneously obtaining images of the same field in 8 optical and near-infrared bands or alternatively performing spectroscopy covering the range between 3500 and 23500 Angstrom in a single shot at a resolving power of R ∼ 4000. State-of-the-art detectors envisioned for this instrument will have negligible readout times and be able to perform high-time-resolution observations. An integral-field mode covering the same range simultaneously will be a crucial element of the design. In its current design, the integral-field unit covers a field of 12\" × 8\" with 0.6\" slitlets. Finally, we aim to include a unique spectropolarimetry unit that will give GTC the first broad-band spectropolarimeter on a 10 m class telescope. The design is an evolution of the OCTOCAM concept that was selected to be built at Gemini, and is now known as SCORPIO.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130146256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Blaise C. Kuo Tiong, C. Schwab, T. Feger, Theodoros Anagnos, J. Pember, S. Rukdee, L. Vanzi, D. Coutts
{"title":"IRANTI: a compact flexible configuration infrared échelle spectrograph integrating emerging technologies for precise radial velocity measurements","authors":"Blaise C. Kuo Tiong, C. Schwab, T. Feger, Theodoros Anagnos, J. Pember, S. Rukdee, L. Vanzi, D. Coutts","doi":"10.1117/12.2561352","DOIUrl":"https://doi.org/10.1117/12.2561352","url":null,"abstract":"Small diameter single-mode fiber (SMF) allows for the design of compact spectrographs that operate at the diffraction limit. The small instrument scale, in turn, allows cost-effective configuration flexibility to use the instrument as a testbed for infrared SMF spectrograph technologies. The same base instrument could be coupled to different adaptive optics (AO) and non-AO SMF feeds. We present the build for such a spectrograph, Iranti, which works in the near-infrared (NIR) range and incorporates novel techniques. Our implementation of this instrument has sufficient cross dispersion to allow testing of a range of input fiber links, including multiple fibers or multi-core fibers (MCFs); the camera optics and detector can also be swapped out easily for different wavelength ranges. The base system uses a white pupil design that relays a slow beam between the collimator, an R6 echelle grating with 13.33 lines/mm and a volume phase holographic grating (VPH) as a cross disperser. In Iranti, we also address mechanical and thermal considerations to improve stability in the instrument. We configure the instrument for ranges in 800 to 1300 nm and characterize system efficiency and stability.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116416227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zeynep Ozer, H. Schnetler, Fehim T. Bagci, M. Booth, M. Brock, N. Cann, J. Capone, J. C. Ortiz, G. Dalton, N. Dobson, T. Foster, A. H. Valadez, J. Kariuki, I. Lewis, Adam Lowe, J. Lynn, M. Rodrigues, I. Tosh, F. Clarke, M. Tecza, N. Thatte
{"title":"HARMONI: First light spectroscopy for the ELT: final design and assembly plan of the spectrographs","authors":"Zeynep Ozer, H. Schnetler, Fehim T. Bagci, M. Booth, M. Brock, N. Cann, J. Capone, J. C. Ortiz, G. Dalton, N. Dobson, T. Foster, A. H. Valadez, J. Kariuki, I. Lewis, Adam Lowe, J. Lynn, M. Rodrigues, I. Tosh, F. Clarke, M. Tecza, N. Thatte","doi":"10.1117/12.2560359","DOIUrl":"https://doi.org/10.1117/12.2560359","url":null,"abstract":"HARMONI is the first light visible and near-IR integral field spectrograph for the ELT. It covers a large spectral range from 450nm to 2450nm with resolving powers from R (≡λ/Δλ) 3500 to 18000 and spatial sampling from 60mas to 4mas. It can operate in two Adaptive Optics modes - SCAO (including a High Contrast capability) and LTAO - or with NOAO. The project is preparing for Final Design Reviews. The instrument uses a field splitter and image slicer to divide the field into 4 sub-units, each providing an input slit to one of four nearly identical spectrographs. This proceeding presents the final opto- mechanical design and the AIV plan of the spectrograph units.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124058724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Perruchot, Pierre-Éric Blanc, J. Guy, L. Le Guillou, S. Ronayette, X. Régal, Gérard Castagnoli, A. Le Van Suu, Eduardo Sepulveda, E. Jullo, J. Cuby, S. Karkar, P. Ghislain, P. Repain, P. Carton, C. Magneville, A. Ealet, S. Escoffier, A. Secroun, K. Honscheid, A. Elliott, P. Jelinsky, Brooks David, Doel Peter, Y. Duan, Edelstein Jerry, Estrada Juan Cruz, Gastañaga Enrique, Karcher Armin, Landriau Martin, Levi Michael, Martini Paul, Palanque-Delabrouille Nathalie, Prada Francisco, Tarle Gragory, Zhang Kai
{"title":"Testing the 10 spectrograph units for DESI: approach and results","authors":"S. Perruchot, Pierre-Éric Blanc, J. Guy, L. Le Guillou, S. Ronayette, X. Régal, Gérard Castagnoli, A. Le Van Suu, Eduardo Sepulveda, E. Jullo, J. Cuby, S. Karkar, P. Ghislain, P. Repain, P. Carton, C. Magneville, A. Ealet, S. Escoffier, A. Secroun, K. Honscheid, A. Elliott, P. Jelinsky, Brooks David, Doel Peter, Y. Duan, Edelstein Jerry, Estrada Juan Cruz, Gastañaga Enrique, Karcher Armin, Landriau Martin, Levi Michael, Martini Paul, Palanque-Delabrouille Nathalie, Prada Francisco, Tarle Gragory, Zhang Kai","doi":"10.1117/12.2561275","DOIUrl":"https://doi.org/10.1117/12.2561275","url":null,"abstract":"The recently commissioned Dark Energy Spectroscopic Instrument (DESI) will measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 sqdeg will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope delivers light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. A consortium of Aix-Marseille University (AMU) and CNRS laboratories (LAM, OHP and CPPM) together with LPNHE (CNRS, IN2P3, Sorbonne Universit'e and Universit'e de Paris) and the WINLIGHT Systems company based in Pertuis (France), were in charge of integrating and validating the performance requirements of the ten full spectrographs, equipped with their cryostats, shutters and other mechanisms. We present a summary of our activity which allowed an efficient validation of the systems in a short-time schedule. We detail the main results. We emphasize the benefits of our approach and also its limitations.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126406729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Crouzet, A. Agabi, T. Guillot, L. Abe, F. Schmider, D. Mékarnia, A. Triaud, Y. Bresson, N. Mauclert, C. Bailet, Dennis Breeveld, S. Blommaert, B. Shortt, J. Daban, A. Lagrange, R. Touzé, Justin Dufour, Valentin Stee, Jocelyn Caruana
{"title":"Towards ASTEP+, a two-color photometric telescope at Dome C, Antarctica","authors":"N. Crouzet, A. Agabi, T. Guillot, L. Abe, F. Schmider, D. Mékarnia, A. Triaud, Y. Bresson, N. Mauclert, C. Bailet, Dennis Breeveld, S. Blommaert, B. Shortt, J. Daban, A. Lagrange, R. Touzé, Justin Dufour, Valentin Stee, Jocelyn Caruana","doi":"10.1117/12.2562550","DOIUrl":"https://doi.org/10.1117/12.2562550","url":null,"abstract":"Dome C, Antarctica is unique in particular for long-duration astronomical observations due to the excellent weather conditions and nearly uninterrupted nights during the Southern winter period. The 40 cm telescope ASTEP has been operating successfully at the Concordia base, at Dome C, since 2010. We describe the new ASTEP+, a major upgrade of its camera box which will allow it to observe simultaneously in two colors. Approximately three times more photons will be collected for science, yielding more sensitive and accurate observations. The southern location of the telescope means that it is ideally located to follow-up exoplanetary targets in preparation for the future JWST and Ariel observations, in particular when located in the southern continuous viewing zones of these space-based telescopes.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"AES-8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126516370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel method for on-sky measurements of atmospheric dispersion","authors":"B. Wehbe, A. Cabral, G. Ávila","doi":"10.1117/12.2561411","DOIUrl":"https://doi.org/10.1117/12.2561411","url":null,"abstract":"","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127841342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ji Hangxin, Yi Chen, Wang Lei, Dai Songxin, Huatao Zhang, Tang Zhen, Jun Li, Qiqige Xin, Yongtian Zhu, Hu Zhongwen
{"title":"The current status of the imaging and spectrogragh (IMSP) for 4m telescope","authors":"Ji Hangxin, Yi Chen, Wang Lei, Dai Songxin, Huatao Zhang, Tang Zhen, Jun Li, Qiqige Xin, Yongtian Zhu, Hu Zhongwen","doi":"10.1117/12.2560129","DOIUrl":"https://doi.org/10.1117/12.2560129","url":null,"abstract":"IMSP is the versatile first-light instrument under construction for the 4m telescope in China. The special feature of IMSP is the multimode operation modes and high-efficiency. Direct imaging mode is designed to work in a synchronous multi-color bands covering from 360 to 1700 nm using two dichroic mirrors with a 3’x3’ field of view (FOV). Long-slit spectrograph mode supports two spectral resolutions operation modes (R=1000 and 5000) via different combination of Volume Phase Holographic Prisms to cover the whole spectrum in visible. High resolution spectrograph mode (R=30000-60000) with wavelength range from 380 to 800 nm is reserved using fiber link system connected from Nasmyth foci to the enviroment controled room. The IMSP is planned to strart commssion at the end of 2021. In this paper, the lastest status of IMSP development will be given, including the final optical design and the integration of each sub-system.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127773743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shaojie Chen, D. Brousseau, O. Lardière, S. Sivanandam, S. Thibault, Tristan Chabot, S. Chapman, D. Erickson, Saugata Dutt, G. Sivo
{"title":"Gemini IRMOS: preliminary optical design of a multi-object adaptive optics-fed infrared integral-field spectrograph","authors":"Shaojie Chen, D. Brousseau, O. Lardière, S. Sivanandam, S. Thibault, Tristan Chabot, S. Chapman, D. Erickson, Saugata Dutt, G. Sivo","doi":"10.1117/12.2561942","DOIUrl":"https://doi.org/10.1117/12.2561942","url":null,"abstract":"We discuss the preliminary end-to-end optical design of an infrared multi-object integral-field spectrograph (GIRMOS) that is designed to take advantage of the multi-object adaptive optics corrected field at the Gemini telescope. GIRMOS’s optical design consists of object selection pick-offs, an adaptive optics (AO) system, and four identical Integral-Field Spectrographs (IFSes), which employ an image slicer to arrange the integral field along a slit. Each IFS can pick off the individual FOV of 1.0x1.0”, 2.0x2.0”, 4.0x4.0” over a 2’ diameter field-of-regard, at a spatial sampling of 25mas, 50mas, and 100mas, respectively. The pick-offs can also be configured in close-packed arrangement to image a single field. Spectral resolutions of R~3000 and 8000 are available in Y, J, H, and K-bands from 0.95 to 2.4μm.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127015541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ground support facilities of the WSO-UV space mission","authors":"S. Sichevsky, M. Sachkov","doi":"10.1117/12.2563013","DOIUrl":"https://doi.org/10.1117/12.2563013","url":null,"abstract":"The World Space Observatory Ultraviolet (WSO - UV) is an international mission, currently Russia and Spain are the main contributors to the project. The WSO-UV payload consists of a 1.7-m telescope and instrumentation: high resolution echelle spectrographs for far UV (115-175 nm) and near UV (174-310 nm) wavelength range, low resolution long slit UV spectrograph for 115-310 nm spectral diapason and UV imaging cameras also for far and near UV. For many astrophysical tasks of the mission Core program orbital UV observations should be expanded to the optical range of 300-1000 nm. In this paper we discuss spectroscopic and imaging instrumentations of Russian telescopes to be used as project ground support.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132168181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Rai, S. Ganesh, S. Paul, P. Kasarla, P. Prajapati, D. Sarkar, A. Singh, Pitambar S. Patwal, H. L. Adalja, S. N. Mathur, S. Naik, Amish B. Shah, Kiran S. Baliyan Physical Research Laboratory, Ahmedabad, India., Iit, Gandhinagar, Space Center
{"title":"Optical aspects of Near-Infrared Imager Spectrometer and Polarimeter instrument (NISP)","authors":"A. Rai, S. Ganesh, S. Paul, P. Kasarla, P. Prajapati, D. Sarkar, A. Singh, Pitambar S. Patwal, H. L. Adalja, S. N. Mathur, S. Naik, Amish B. Shah, Kiran S. Baliyan Physical Research Laboratory, Ahmedabad, India., Iit, Gandhinagar, Space Center","doi":"10.1117/12.2560988","DOIUrl":"https://doi.org/10.1117/12.2560988","url":null,"abstract":"As a Near-IR instrument to PRL's upcoming 2.5 m telescope, NISP is designed indigeniously at PRL to serve as a multifaceted instrument. Optical, Mechanical and Electronics subsystems are being designed and developed in-house at PRL. It will consist of imaging, spectroscopy and imaging-polarimetry mode in the wavelength bands Y, J, H, Ks i.e. 0.8 - 2.5 micron. The detector is an 2K x 2K H2RG (MCT) array detector from Teledyne, which will give a large FOV of 10' x 10' in the imaging mode. Spectroscopic modes with resolving power of R ~ 3000, will be achieved using grisms. Spectroscopy will be available in single order and a cross-dispersed mode shall be planned for simultaneous spectra. The instrument enables multi-wavelength imaging-polarimetry using Wedged-Double Wollaston (WeDoWo) prisms to get single shot Stokes parameters (I, Q, U) for linear polarisation simultaneously, thus increasing the efficiency of polarisation measurements and reducing observation time.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121174315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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