Ground-based and Airborne Instrumentation for Astronomy VIII最新文献

{"title":"ESPRESSO fiber-Link upgrade: III - alignment and integration activities","authors":"M. Aliverti, G. Pariani, G. Ávila, L. Oggioni, E. Redaelli, M. Riva, F. Pepe, I. Huges, D. Megevand, B. Chazelas, F. G. Témich, J. L. Rasilla","doi":"10.1117/12.2562129","DOIUrl":"https://doi.org/10.1117/12.2562129","url":null,"abstract":"The ESPRESSO spectrograph is a high resolution, super stable echelle cross-dispersed fibre-fed spectrograph, installed in the ESO-VLT Combined Coude Laboratory of the ESO-VLT in Cerro Paranal. In the framework of the Fiber-Link (FL) recovery project, which was necessary to meet the throughput requirement of the instrument, we redesigned and build the whole fibre bundle. The FL subsystem of ESPRESSO is composed by the Input Ends (IE), one per telescope and observing mode, which inject the telescope light into the fibres, the double scrambler and the light combiner for the multi-telescope mode, which merges the light of the four telescopes in a single fibre, and the spectrograph entrance slit. In this paper we focus on the alignment strategy, the tools developed and the activities performed to integrate the different components of the FL. We will describe the gluing system of the mini-lenses on the fibre ends, to guarantee the field and pupil centration; the integration of the IE, where the position and telecentricity of the two channels (star/sky) were necessary to meet the interface with the telescopes; and the integration of the beam combiner for the multi-telescope mode, particularly demanding for the small scale of the elements to integrate and the high accuracy required to guarantee the high throughput. We will also show the procedure for the scrambler alignment for the single telescope modes and the multi- telescope mode developed in laboratory and replicated at the telescope.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"73 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114251726","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":"The ESO ELT armazones instrumentation programme","authors":"M. Cirasuolo, S. Ramsay, P. Caillier, Alain Delorme, F. Dérie, Juan Carlos Gonzalez Herrera, P. Hammersley, Ignacio Lopez Gil, V. Mainieri, A. Manescau, P. Padovani, C. Péroux, O. Pfuhl, Adrian S. Russell, R. Tamai, M. Tuti","doi":"10.1117/12.2563100","DOIUrl":"https://doi.org/10.1117/12.2563100","url":null,"abstract":"In this paper we present the status of the Armazones Instrumentation Programme for ESO’s Extremely Large Telescope (ELT). While the ELT Construction Programme includes the first-generation instruments (MICADO, MAORY, HARMONI and METIS), the Armazones Programme covers the development of all future instrumentation for the ELT. As part of this Programme we have already completed 2 Phase-A studies for a high-resolution spectrograph (HIRES) and a multi-object spectrograph (MOSAIC). In this paper we report the status of the Programme, the complementarity of these new instruments with the ones already in construction, and the roadmap for future developments.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115100611","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":"Towards a physical understanding of the thermal background in large ground-based telescopes","authors":"L. Burtscher, I. Politopoulos, Sergio Fern'andez-Acosta, T. Agócs, M. V. D. Ancker, R. Boekel, B. Brandl, H. Kaufl, E. Pantin, A. Pietrow, R. Siebenmorgen, R. Stuik, K. Tristram, W. D. Wit","doi":"10.1117/12.2576271","DOIUrl":"https://doi.org/10.1117/12.2576271","url":null,"abstract":"Ground-based thermal-infrared observations have a unique scientific potential, but are also extremely challenging due to the need to accurately subtract the high thermal background. Since the established techniques of chopping and nodding need to be modified for observations with the future mid-infrared ELT imager and spectrograph (METIS), we investigate the sources of thermal background subtraction residuals. Our aim is to either remove or at least minimise the need for nodding in order to increase the observing efficiency for METIS. To this end we need to improve our knowledge about the origin of chop residuals and devise observing methods to remove them most efficiently, i.e. with the slowest possible nodding frequency. Thanks to dedicated observations with VLT/VISIR and GranTeCan/CanariCam, we have successfully traced the origin of three kinds of chopping residuals to (1) the entrance window, (2) the spiders and (3) other warm emitters in the pupil, in particular the VLT M3 mirror cell in its parking position. We conclude that, in order to keep chopping residuals stable over a long time (and therefore allow for slower nodding cycles), the pupil illumination needs to be kept constant, i.e. (imaging) observations should be performed in pupil-stabilised, rather than field-stabilised mode, with image de-rotation in the post-processing pipeline. This is now foreseen as the default observing concept for all METIS imaging modes.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116748761","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":"Manufacturing, integration, and mechanical verification of SOXS","authors":"M. Aliverti, L. Oggioni, M. Genoni, G. Pariani, O. Hershko, A. Brucalassi, G. Pignata, H. Kuncarayakti, R. Z. Sánchez, M. Munari, S. Campana, P. Schipani, R. Claudi, A. Baruffolo, S. Ben-Ami, F. Biondi, G. Capasso, R. Cosentino, F. D'Alessio, P. D’Avanzo, M. Landoni, A. Rubin, S. Scuderi, F. Vitali, D. Young, J. Achr'en, J. A. Araiza-Durán, I. Arcavi, R. Bruch, E. Cappellaro, M. Colapietro, M. Valle, M. D. Pascale, R. D. Benedetto, S. D'orsi, A. Gal-yam, M. Hernández, J. Kotilainen, G. Causi, S. Mattila, M. Rappaport, K. Radhakrishnan, E. Redaelli, Davide Ricci, M. Riva, B. Salasnich, S. Smartt, M. Stritzinger, E. Ventura","doi":"10.1117/12.2563883","DOIUrl":"https://doi.org/10.1117/12.2563883","url":null,"abstract":"SOXS (Son Of X-Shooter) is a medium resolution (~4500) wide-band (0.35 2.0 μm) spectrograph which passed the Final Design Review in 2018. The instrument is planned to be installed at the NTT in La Silla and it is mainly composed by five different optomechanical subsystems (Common Path, NIR spectrograph, UV-VIS spectrograph, Camera, and Calibration) and other mechanical subsystems (Interface flange, Platform, cable corotator, and cooling). It is currently in the procurement and integration phase. In this paper we present the post-FDR modifications in the mechanical design due to the various iterations with the manufacturers and the actual procurement status. The last part describes the strategy used to keep under control the mechanical interfaces between the subsystems.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122392802","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":"The Keck Planet Imager and Characterizer: Phase I fiber injection unit early performance and commissioning","authors":"Evan C. Morris, Jason J. Wang, J. Ruffio, J. Delorme, Jacklyn Pezzato, C. Bond, D. Mawet, A. Skemer","doi":"10.1117/12.2560852","DOIUrl":"https://doi.org/10.1117/12.2560852","url":null,"abstract":"The Keck Planet Imager and Characterizer (KPIC) is an upgrade to the Keck II adaptive optics system and instrument suite with the goal of improving direct imaging and high-resolution spectroscopic characterization capabilities for giant exoplanets. KPIC Phase I includes a fiber injection unit (FIU) downstream of a new pyramid wavefront sensor, coupling planet light to a single mode fiber fed into NIRSPEC, Keck’s high-resolution infrared spectrograph. This enables high-dispersion spectroscopy (HDS) of directly imaged exoplanets at smaller separation and higher contrast, improving our spectral characterization capabilities for these objects. Here, we report performance results from the KPIC Phase I FIU commissioning, including analysis of throughput, stability, and sensitivity of the instrument.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125383781","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":"SOXS: effects on optical performances due to gravity flexures, temperature variations, and subsystems alignment","authors":"R. Z. Sánchez, M. Aliverti, M. Munari, S. Campana, R. Claudi, P. Schipani, A. Baruffolo, S. Ben-Ami, F. Biondi, G. Capasso, R. Cosentino, F. D'Alessio, P. D’Avanzo, O. Hershko, H. Kuncarayakti, M. Landoni, G. Pignata, A. Rubin, S. Scuderi, F. Vitali, D. Young, J. Achr'en, J. A. Araiza-Durán, I. Arcavi, A. Brucalassi, R. Bruch, E. Cappellaro, M. Colapietro, M. Valle, M. D. Pascale, R. D. Benedetto, S. D'orsi, A. Gal-yam, M. Genoni, M. Hernandez, J. Kotilainen, G. Causi, S. Mattila, M. Rappaport, K. Radhakrishnan, Davide Ricci, M. Riva, B. Salasnich, S. Smartt, M. Stritzinger, Héctor Ventura","doi":"10.1117/12.2561576","DOIUrl":"https://doi.org/10.1117/12.2561576","url":null,"abstract":"SOXS (Son Of X-Shooter) is the new medium resolution wide-band spectrograph to be installed at the 3.6m New Technology Telescope (NTT) in La Silla. SOXS will offer simultaneous wavelength coverage from 0.35 to 2.0 μm and will be dedicated to the study of transient and variable sources. While nominal optical performances of the system were presented in previous proceedings (Zanmar Sanchez et al. 2018), we here present a set of further analyses aimed to identify and quantify optical effects, due to changes in temperature and orientation of the instrument during alignment and operations.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128938355","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":"Integration and early testing of WEAVE: the next-generation spectroscopy facility for the William Herschel Telescope","authors":"G. Dalton, S. Trager, D. Abrams, P. Bonifacio, J. Aguerri, A. Vallenari, G. Bishop, K. Middleton, C. Benn, K. Dee, S. Mignot, I. Lewis, J. Pragt, S. Picó, N. Walton, J. Rey, C. Prieto, É. Lhomé, M. Balcells, D. Terrett, M. Brock, Andy Ridings, J. Skvarc, M. Verheijen, I. Steele, R. Stuik, G. Kroes, N. Tromp, J. Kragt, D. Lesman, C. Mottram, S. Bates, F. Gribbin, J. A. Burgal, J. Herreros, J. Delgado, Carlos Martín, D. Cano, R. Navarro, M. Irwin, L. P. D. Arriba, Neil O'Mahoney, A. Bianco, Alireza Moleinezhad, R. T. Horst, E. Molinari, M. Lodi, J. Guerra, A. Baruffalo, E. Carrasco, Szigfrid Farcas, Ellen Schallig, Sarah Hughes, V. Hill, Daniel J B Smith, J. Drew, B. Poggianti, A. Iovino, Mat Pieri, Shoko Jin, Lillian Dominguez Palmero, C. Farina, Adrian P. Martin, C. Worley, David Murphy, S. Guest, H. Morris, E. Elswijk, M. D. Haan, H. Hanenburg, B. Salasnich, D. Mayya, R. Izazaga-Pérez, E. Gafton, E. Caffau, D. Horville, F. P. Chinchón, Jesus Falcon-Barosso, B. Gänsicke, J. Juan, N. Hernandez","doi":"10.1117/12.2561067","DOIUrl":"https://doi.org/10.1117/12.2561067","url":null,"abstract":"We present an update on the overall integration progress of the WEAVE next-generation spectroscopy facility for the William Herschel Telescope (WHT), now scheduled for first light in early-2021, with almost all components now arrived at the observatory. We also present a summary of the current planning behind the 5-year initial phase of survey operations, and some detailed end-to-end science simulations that have been implemented to evaluate the final on-sky performance after data processing. WEAVE will provide optical ground-based follow up of ground-based (LOFAR) and space-based (Gaia) surveys. WEAVE is a multi-object and multi-IFU facility utilizing a new 2-degree prime focus field of view at the WHT, with a buffered pick-and-place positioner system hosting 1000 multi-object (MOS) fibres, 20 mini integral field units, or a single large IFU for each observation. The fibres are fed to a single (dual-beam) spectrograph, with total of 16k spectral pixels, located within the WHT GHRIL enclosure on the telescope Nasmyth platform, supporting observations at R~5000 over the full 370-1000nm wavelength range in a single exposure, or a high resolution mode with limited coverage in each arm at R~20000.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126262049","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":"Development status of the UV-VIS detector system of SOXS for the ESO-NTT telescope","authors":"R. Cosentino, M. Hernandez, Héctor Ventura, S. Campana, R. Claudi, P. Schipani, M. Aliverti, A. Baruffolo, S. B. Ami, F. Biondi, G. Capasso, F. D'Alessio, P. D’Avanzo, O. Hershko, H. Kuncarayakti, M. Landoni, M. Munari, G. Pignata, A. Rubin, S. Scuderi, F. Vitali, D. Young, J. Achrén, J. Duran, I. Arcavi, Anna Brucallassi, R. Bruch, E. Cappellaro, M. Colapietro, M. Valle, M. D. Pascale, R. D. Benedetto, S. D'orsi, A. G. Yam, M. Genoni, J. Kotilainen, G. Causi, S. Mattila, M. Rappaport, K. Radhakrishnan, Davide Ricci, M. Riva, B. Salasnich, S. Smartt, R. Z. Sánchez, M. Stritzinger, M. Accardo, L. Mehrgan, D. Ives, J. Hopgood","doi":"10.1117/12.2561147","DOIUrl":"https://doi.org/10.1117/12.2561147","url":null,"abstract":"SOXS will be the new spectroscopic facility for the ESO NTT telescope able to cover the optical and NIR bands by using two different arms: the UV-VIS (350-850 nm), and the NIR (800-2000 nm). In this article, we describe the development status of the visible camera cryostat, the architecture of the acquisition system and the progress in the electronic design. The UV-VIS detector system is based on a CCD detector 44-82 from e2v, a custom detector head, coupled with the ESO continuous flow cryostats (CFC), a custom cooling system, based on a Programmable Logic Controller (PLC), and the New General Controller (NGC) developed by ESO. This paper outlines the development status of the system, describes the design of the different parts that make up the UVVIS arm and is accompanied by a series of information describing the SOXS design solutions in the mechanics and in the electronics parts. The first tests of the detector system with the UV-VIS camera will be shown. (Ref. 1–28).","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132282441","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":"The Planet as Exoplanet Analog Spectrograph (PEAS): design and first-light","authors":"E. Martin, A. Skemer, M. Radovan, S. Allen, D. Black, W. Deich, J. Fortney, G. Kruglikov, N. MacDonald, David Marques, Evan C. Morris, A. Phillips, Dale Sandford, Julissa Villalobos Valencia, Jason J. Wang, Pavl Zachary","doi":"10.1117/12.2560706","DOIUrl":"https://doi.org/10.1117/12.2560706","url":null,"abstract":"Exoplanets are abundant in our galaxy and yet characterizing them remains a technical challenge. Solar System planets provide an opportunity to test the practical limitations of exoplanet observations with high signal-to-noise data that we cannot access for exoplanets. However, data on Solar System planets differ from exoplanets in that Solar System planets are spatially resolved while exoplanets are unresolved point-sources. We present a novel instrument designed to observe Solar System planets as though they are exoplanets, the Planet as Exoplanet Analog Spectrograph (PEAS). PEAS consists of a dedicated 0.5-m telescope and off-the-shelf optics, located at Lick Observatory. PEAS uses an integrating sphere to disk-integrate light from the Solar System planets, producing spatially mixed light more similar to the spectra we can obtain from exoplanets. This paper describes the general system design and early results of the PEAS instrument.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122559879","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":"An N-band test bench for the METIS coronagraphic masks","authors":"S. Ronayette, S. Mouzali, J. Barrière, E. Pantin, T. Orduna, P. Gallais, M. Lortholary, L. Dumaye, O. Absil, C. Delacroix, D. Ives, M. Karlsson","doi":"10.1117/12.2562261","DOIUrl":"https://doi.org/10.1117/12.2562261","url":null,"abstract":"METIS is one of the first three instruments for the ELT, Europe’s next-generation ground-based telescope. It will offer imaging, coronagraphy and spectroscopy in the L, M and N bands for general-purpose science in astrophysics. Among its main science drivers are circumstellar disks and extrasolar planets observations, which requires demanding high contrast imaging techniques. In that framework, METIS will be equipped with state-of-the-art phase mask coronagraphs: Apodizing Phase Plate (APP) and Annular Grooves Phase Mask (AGPM). Manufacturing the AGPM coronagraphs is a complex process that requires performance assessment with specific testing before implementation into the instrument. At Department of Astrophysics (CEA Saclay, France), responsible for the testing of the N-band AGPMs, a previously available test bench with a telescope simulator and cryogenic facility has been upgraded to comply with the AGPM tests requirements. This paper presents these requirements and describes the test bench design adopted. Then, based on preliminary results, we discuss the original solutions that permitted to reach our goals.","PeriodicalId":215000,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VIII","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116864244","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}