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

{"title":"Instrumentation at Gemini Observatory (Conference Presentation)","authors":"S. Kleinman","doi":"10.1117/12.2308298","DOIUrl":"https://doi.org/10.1117/12.2308298","url":null,"abstract":"","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125105815","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":"4MOST: the 4-metre multi-object spectroscopic telescope project at final design review (Conference Presentation)","authors":"R. D. Jong, S. Barden, O. Bellido-Tirado, J. Brynnel, S. Frey, D. Giannone, R. Haynes, D. Johl, O. Schnurr, J. Walcher, R. Winkler, S. Feltzing, R. McMahon, V. Mainieri, G. Baker, P. Caillier, W. Gaessler, H. Mandel, J. Pirard, J. Pragt, N. Walton, T. Bensby, M. Bergemann, C. Chiappini, N. Christlieb, M. Cioni, S. Driver, A. Finoguenov, A. Helmi, M. Irwin, J. Kneib, J. Liske, A. Merloni, I. Minchev, B. Nichol, J. Richard, E. Starkenburg, M. Banerji, T. Boller, G. Kordopatis, M. Krumpe, K. Lind, S. Martell, E. Tempel, S. Croom, L. Davies, M. Fouesneau","doi":"10.1117/12.2312012","DOIUrl":"https://doi.org/10.1117/12.2312012","url":null,"abstract":"","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"28 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124137978","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":"Australian technology innovation at the Advanced Instrumentation and Technology Centre, Mount Stromlo Observatory (Conference Presentation)","authors":"A. M. Moore","doi":"10.1117/12.2312854","DOIUrl":"https://doi.org/10.1117/12.2312854","url":null,"abstract":"","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129589403","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 NEID precision radial velocity spectrometer: project overview and status update (Conference Presentation)","authors":"C. Bender, R. Akeson, Lori Allen, Tyler B. Anderson, Fabienne A. Bastien, Cullen H. Blake, Scott Blakeslee, Abhijit G. Chakraborty, S. Diddams, Qian Gong, S. Halverson, F. Hearty, E. Hunting, K. P. Jaehnig, S. Kanodia, Kyle F. Kaplan, Eric I. Levi, Dan Li, J. Luhn, S. Logsdon, S. Mahadevan, M. McElwain, Andrew J. Monson, J. Ninan, Jeffery W. Percival, J. Rajagopal, L. Ramsey, Paul Robertson, Arpita Roy, C. Schwab, Michael P. Smith, G. Stefansson, R. Terrien, M. Wolf, Jason T. Wright","doi":"10.1117/12.2312750","DOIUrl":"https://doi.org/10.1117/12.2312750","url":null,"abstract":"NEID is an ultra-stabilized, high-resolution, fiber-fed, spectrometer being built by a multi-institutional team for the 3.5 m WIYN telescope at Kitt Peak National Observatory, with a delivery date in 2019. The instrument is supported by the NN-EXPLORE program, a joint endeavor between NASA and the NSF to provide the exoplanet community with extreme ground-based Doppler radial velocity (RV) measurement capability. NEID's primary science objective is the discovery and characterization of terrestrial mass exoplanets, including follow-up of planets discovered by TESS and other spacecraft missions. Achieving these goals requires a multi-faceted approach that combines a state of the art Doppler instrument with a RV precision goal of 30 cm/s, a significantly improved understanding of the stellar radial velocity signal and intrinsic stellar variability, and large numbers of observations distributed optimally in time following guidelines refined over the past 25 years of RV exoplanet discovery.\u0000\u0000\u0000NEID uses a single-arm white pupil echelle optical design to produce R~100,000 spectra covering the complete wavelength range from 0.38 - 0.92 microns on a single 9k x 9k CCD. The optical bench and optics are stabilized with a state of the art temperature control system that achieves sub-mK stability, and are surrounded by a vacuum chamber that maintains 10^-7 Torr pressure or better. This extreme stability minimizes drift in the optics and optomechanical systems. Light is transfered from the telescope to the spectrometer using fiber-optic feeds that combine circular and octagonal fibers with a ball-lens double scrambler to provide high amounts of radial and azmuthal scrambling that minimize variations in the input illumination. These fibers interface with the WIYN telescope through a sophisticated new instrument port, which will provide atmospheric-dispersion correction and active tip-tilt to ensure precise and repeatable target positioning on the fiber. A three tiered calibration system utilizes a Laser Frequency Comb as the primary wavelength calibrator, while providing a stabilized etalon and ThAr and UNe Hollow-Cathode Lamps as high-reliability backup sources. An integrated exposure meter in the form of a low-resolution spectrometer measures precise chromatic exposure time centroids. A sophisticated data reduction pipeline that builds upon algorithms developed over decades of precision RV spectroscopy will automatically transform raw images and telemetry into RVs and other high-level data products, which will be served to users and the community through a NExScI portal.\u0000\u0000\u0000In this paper, we will provide an overview of the NEID project, including a progress update on the instrument integration and testing. We will also describe the WIYN operations plan, which is built around queue scheduled observations, and detail notional science programs that can be carried out with NEID, including the instrument team's GTO program. Finally, we will briefly discuss the impa","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129194349","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":"WFOS instrument trade study: slicer vs. fiber instrument concept designs and results (Conference Presentation)","authors":"K. Bundy, M. Savage, R. Kupke, N. MacDonald, K. Westfall, M. Radovan, Zheng Cai, Brian Digiorgio, R. Dekany, Devika K. Divakar, J. Fucik, Hangxin Ji, S. Miyazaki, S. Ozaki, A. Phillips, N. Roy, Roger M. Smith, A. Surya, Siram Padmanaban Nadar, Sivarani Thirupathi, T. Tsuzuki","doi":"10.1117/12.2312283","DOIUrl":"https://doi.org/10.1117/12.2312283","url":null,"abstract":"The Wide Field Optical Spectrometer (WFOS) is a seeing limited, multi-object spectrograph and first light instrument for the Thirty Meter Telescope (TMT) scheduled for first observations in 2027. The spectrograph will deliver a minimum resolution of R~5,000 over a simultaneous wavelength range of 310 nm to 1,000 nm with a multiplexing goal of between 20 and 700 targets. The WFOS team consisting of partners in China, India, Japan, and the United States has completed a trade study of two competing concepts intended to meet the design requirements derived from the WFOS detailed science case. The first of these design concepts is a traditional slit mask instrument capable of delivering R~1,000 for up to 100 simultaneous targets using 1 x 7 arc second slits, and a novel focal plane slicing method for R~5,000 on up to 20 simultaneous targets can be achieved by reformatting the 1 arc-second wide slits into three 0.3 arc-second slits projected next to each other in the spatial direction. The second concept under consideration is a highly multiplexed fiber based system utilizing a robotic fiber positioning system at the focal plane containing 700 individual collectors, and a cluster of up to 12 replicated spectrographs with a minimum resolution of R~5,000 over the full pass band. Each collecting element will contain a bundle of 19 fibers coupled to micro-lens arrays that allow for contiguous coverage of targets and adaptation of the f/15 telescope beam to f/3.2 for feeding the fiber system. This report describes the baseline WFOS design, provides an overview of the two trade study concepts, and the process used to down-select between the two options. Also included is a risk assessment regarding the known technical challenges in the selected design concept.","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121983294","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 Evryscopes: observing the entire sky at high cadence (Conference Presentation)","authors":"N. Law, J. Ratzloff, H. Corbett, O. Fors, W. Howard, Erin Conn","doi":"10.1117/12.2313995","DOIUrl":"https://doi.org/10.1117/12.2313995","url":null,"abstract":"The Evryscope is a new type of array telescope which monitors the entire accessible sky in each exposure. One Evryscope has covered the Southern hemisphere from Chile since 2015, and we will soon deploy another Evryscope to cover the North from Mount Laguna Observatory in California. Each telescope, with 692 MPix covering an 8000-square-degree field of view, builds many-year-length, high-cadence light curves for every accessible object brighter than ~16th magnitude. An overlapping 4000-square-degree region between each system will give simultaneous multicolor observations with a 8,500km baseline.\u0000\u0000Every night, we add more than a billion object detections to our databases, enabling the detection of exoplanet transits, microlensing events, nearby extragalactic transients, gravitational wave electromagnetic counterparts, and a wide range of other short timescale events. The Evryscopes are designed to complement surveys such as TESS, providing multi-color context, longer-term observations and higher cadence across the sky. Although the Evryscope telescopes are small, they integrate for more than 6 hours on each part of the sky each night, enabling the system to form high-cadence counterparts to surveys such as LSST.\u0000\u0000All data, over 600Gb per night, is recorded for realtime analysis. Co-adding achieves depths of g>17 each hour across the entire accessible sky, and our on-site pipelines add all object detections to our databases in realtime. I will discuss the system design, including building the telescopes for fully-robotic operation, actuating our lens-camera interface at few-micron precisions to optimize our image quality, and the big-data analysis required to explore the petabyte-scale dataset we are collecting over the next few years. I will also present the first results from the Southern Evryscope.","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123616055","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 habitable-zone planet finder: engineering and commissioning on the Hobby Eberly telescope (Conference Presentation)","authors":"S. Mahadevan, T. Anderson, E. Balderrama, C. Bender, Emily Bevins, Scott Blakeslee, A. Cole, D. Conran, S. Diddams, Adam Dykhouse, J. Darling, C. Fredrick, S. Halverson, F. Hearty, J. Jennings, K. Kaplan, S. Kanodia, Eric I. Levi, Emily Lubar, A. Metcalf, A. Monson, J. Ninan, Colin Nitroy, L. Ramsey, Paul Robertson, Arpita Roy, C. Schwab, M. Shetrone, R. Spencer, G. Stefansson, R. Terrien, J. Wright","doi":"10.1117/12.2313835","DOIUrl":"https://doi.org/10.1117/12.2313835","url":null,"abstract":"The Habitable-Zone Planet Finder (HPF) is a stabilized, fiber-fed, NIR spectrometer recently commissioned at the 10m Hobby-Eberly telescope (HET). HPF has been designed and built from the ground up to be capable of discovering low mass planets around mid-late M dwarfs using the Doppler radial velocity technique. Novel apects of the instrument design include mili-kelvin temperature control, careful attending to fiber scrambling, and optics, mounting and detector readout schemes designed to minimize drifts and maximize the radial velocity precision. The optical design of the HPF is an asymmetric white pupil spectrograph layout in a vacuum cryostat cooled to 180 K. The spectrograph uses gold-coated mirrors, a mosaic echelle grating, and a single Teledyne Hawaii-2RG (H2RG) NIR detector with a 1.7-micron cutoff covering parts of the information-rich z, Y and J NIR bands at a spectral resolution of R~55,000. The use of 1.7 micron H2RG enables HPF to operate warmer than most other cryogenic instruments- with the instrument operating at 180K (allowing normal glasses to be used in the camera) and the detector at 120K. We summarize the engineering and commissioning tests on the telescope and the current radial velocity performance of HPF. With data in hand we revisit some of the design trades that went into the instrument design to explore the remaining tall poles in precision RV measurements in the near-infrared. HPF seeks to extend the precision radial velocity technique from the optical to the near-infrared, and in this presentation, we seek to share with the community our experience in this relatively new regime.","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124558490","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":"TAIPAN: the AAO's first Starbug positioner and spectrograph (Conference Presentation)","authors":"N. Lorente, K. Kuehn, J. Lawrence, C. Bacigalupo, David M. Brown, Rebecca Brown, S. Case, S. Chapman, V. Churilov, T. Farrell, M. Goodwin, U. Klauser, S. Mali, R. Muller, V. Nichani, N. Pai, S. Smedley, M. Vuong, L. Waller, R. Zhelem, H. Mcgregor","doi":"10.1117/12.2313032","DOIUrl":"https://doi.org/10.1117/12.2313032","url":null,"abstract":"The AAO’s TAIPAN instrument is a multi-object fibre positioner and spectrograph installed on the 1.2m UK-Schmidt telescope at Siding Spring Observatory. The positioner, a prototype for the MANIFEST positioner on the Giant Magellan Telescope, uses independently controlled Starbug robots to position a maximum of 300 optical fibres on a 32cm glass field plate (for a 6 degree field of view), to an accuracy of 5 microns (0.3 arcsec). The Starbug technology allows multi-object spectroscopy to be carried out with a minimum of overhead between observations, significantly decreasing field configuration time. Over the next 5 years the TAIPAN instrument will be used for two southern-hemisphere surveys: Taipan, a spectroscopic survey of 1x10^6 galaxies at z<0.3, and FunnelWeb, a stellar survey complete to Gaia G=12.5. In this paper we present an overview of the operational TAIPAN instrument: its design, construction and integration, and discuss the 2017 commissioning campaign and science verification results obtained in early 2018.","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132405138","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":"Initial performance of the Zwicky transient facility: a wide-fast time-domain survey (Conference Presentation)","authors":"R. Dekany, Roger M. Smith, R. Riddle, M. Feeney, S. Kaye, Michael E. Porter, D. Hale, J. Zolkower, P. Mao, D. Reiley, Patrick Murphy, H. Rodriguez, J. Belicki, J. Henning, J. Cromer","doi":"10.1117/12.2312353","DOIUrl":"https://doi.org/10.1117/12.2312353","url":null,"abstract":"Zwicky Transient Facility is an integrated, multi-band astronomical survey system optimized for sensitivity, observing cadence, and efficiency. The key subsystem consists of a 600 megapixel CCD focal plane mounted in a flat-fielding vacuum cryostat, located at the prime focus of the 1.2-meter Samuel Oschin Telescope at Palomar Observatory. Supporting subsystems include a new 2.4-meter optical shutter assembly, a 1.35-meter diameter aspheric corrector plate, a cryostat stabilizing hexapod, a commercial robotic arm-based exchanger, three 440 millimeter width filters, four guide/focus CCDs, and dedicated optics compensating individual field curvature over each of sixteen 6k x 6k science CCDs.To optimize ZTF efficiency, all telescope and dome drives were upgraded for higher speed and acceleration, fast readout electronics were implemented, and a sophisticated robotic control system has been implemented.\u0000\u0000We present for the first time on-sky results from the recently completed ZTF including its realized optical image quality, CCD noise, and observing efficiency performance and discuss engineering challenges that have been overcome. Early scientific results from the ZTF survey are also included.","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133775145","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":"ESPRESSO@VLT: an instrument for advanced exoplanet research (Conference Presentation)","authors":"F. Pepe","doi":"10.1117/12.2315126","DOIUrl":"https://doi.org/10.1117/12.2315126","url":null,"abstract":"","PeriodicalId":129032,"journal":{"name":"Ground-based and Airborne Instrumentation for Astronomy VII","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125146569","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}