Journal of Astronomical Telescopes Instruments and Systems最新文献_第4页

Low-cost Raspberry Pi star sensor for small satellites. II: StarberrySense flight and in-orbit performance 用于小型卫星的低成本 Raspberry Pi 星传感器。二：StarberrySense 的飞行和在轨性能

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-04-01 DOI: 10.1117/1.jatis.10.2.026002

Bharat Chandra P., Binukumar G. Nair, Shubhangi Jain, Shubham Jankiram Ghatul, Mahesh Babu S., Rekhesh Mohan, Margarita Safonova, Jayant Murthy

引用次数: 0

Development of a near-infrared wide-field integral field unit by ultra-precision diamond cutting 利用超精密钻石切割技术开发近红外宽视场积分场装置

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.015004

Kosuke Kushibiki, Shinobu Ozaki, Masahiro Takeda, Takuya Hosobata, Yutaka Yamagata, Shinya Morita, Toshihiro Tsuzuki, Keiichi Nakagawa, Takao Saiki, Yutaka Ohtake, Kenji Mitsui, Hirofumi Okita, Yutaro Kitagawa, Yukihiro Kono, Kentaro Motohara, Hidenori Takahashi, Masahiro Konishi, Natsuko Kato, Shuhei Koyama, Nuo Chen

{"title":"Development of a near-infrared wide-field integral field unit by ultra-precision diamond cutting","authors":"Kosuke Kushibiki, Shinobu Ozaki, Masahiro Takeda, Takuya Hosobata, Yutaka Yamagata, Shinya Morita, Toshihiro Tsuzuki, Keiichi Nakagawa, Takao Saiki, Yutaka Ohtake, Kenji Mitsui, Hirofumi Okita, Yutaro Kitagawa, Yukihiro Kono, Kentaro Motohara, Hidenori Takahashi, Masahiro Konishi, Natsuko Kato, Shuhei Koyama, Nuo Chen","doi":"10.1117/1.jatis.10.1.015004","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.015004","url":null,"abstract":"Integral field spectroscopy (IFS) is an observational method for obtaining spatially resolved spectra over a specific field of view (FoV) in a single exposure. In recent years, near-infrared IFS has gained importance in observing objects with strong dust attenuation or at a high redshift. One limitation of existing near-infrared IFS instruments is their relatively small FoV, less than 100 arcsec2, compared with optical instruments. Therefore, we developed a near-infrared (0.9 to 2.5 μm) image-slicer type integral field unit (IFU) with a larger FoV of 13.5×10.4 arcsec2 by matching a slice width to a typical seeing size of 0.4 arcsec. The IFU has a compact optical design utilizing off-axis ellipsoidal mirrors to reduce aberrations. Complex optical elements were fabricated using an ultra-precision cutting machine to achieve root mean square surface roughness of less than 10 nm and a P-V shape error of less than 300 nm. The ultra-precision machining can also simplify the alignment procedures. The on-sky performance evaluation confirmed that the image quality and the throughput of the IFU were as designed. In conclusion, we successfully developed a compact IFU utilizing an ultra-precision cutting technique, almost fulfilling the requirements.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140026558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementation of a dark zone maintenance algorithm for speckle drift correction in a high contrast space coronagraph (Erratum) 在高对比度空间日冕仪中实施用于斑点漂移校正的暗区维护算法（勘误表）

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.019801

Susan F. Redmond, Leonid Pogorelyuk, Laurent Pueyo, Emiel Por, James Noss, Scott D. Will, Iva Laginja, Keira Brooks, Matthew Maclay, J. Fowler, N. Jeremy Kasdin, Marshall D. Perrin, Rémi Soummer

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Development of an alignment device for the Prototype Segmented Mirror Telescope 为分段镜望远镜原型开发校准装置

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.019002

Radhika Dharmadhikari, Padmakar Parihar, Mohammed Muthahar Rafeeq Ahmed, Govinda Koravangala Venkatapathaiah, Madan Mohan Kemkar, Himanshu Kunjam

{"title":"Development of an alignment device for the Prototype Segmented Mirror Telescope","authors":"Radhika Dharmadhikari, Padmakar Parihar, Mohammed Muthahar Rafeeq Ahmed, Govinda Koravangala Venkatapathaiah, Madan Mohan Kemkar, Himanshu Kunjam","doi":"10.1117/1.jatis.10.1.019002","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.019002","url":null,"abstract":"The Prototype Segmented Mirror Telescope is a 1.3 m aperture, seven segment telescope, being developed as a technology demonstrator for India’s large optical-IR telescope project. For this segmented mirror telescope, a Shack Hartmann sensor based alignment device has been designed and developed. The device not only precisely captures the segment misalignment but also measures the segment focus error with an accuracy of a few microns and hence helps in the tip-tilt correction and co-focusing of the mirror segments. The device is designed to work primarily in two different modes: the Shack–Hartmann mode and the imaging mode. After completion of the alignment procedure, the final image quality can be checked in the imaging mode. The device is designed in such a way that it also has a provision to conduct the Keck kind of phasing experiment with one pair of mirror segments. To make the device cost effective, only off-the-shelf components are used. The optical design and opto-mechanical analysis of the device were carried out using Zemax and SolidWorks software. Then, the device was realized and its extensive testing was carried out in the laboratory. Here, we have presented the details of the opto-mechanical design and analysis as well as the preliminary results of performance tests conducted in the laboratory.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extending the high-resolution X-ray spectroscopy of Line Emission Mapper to UV/optically-bright sources 将线发射测绘仪的高分辨率 X 射线光谱学扩展到紫外/光亮源

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.014006

Jeremy J. Drake, Simon R. Bandler, Marco Barbera, Enrico Bozzo, William R. Dunn, Cecilia Garraffo, Thomas Gauron, Ludovic Genolet, Janice Houston, Richard L. Kelley, Caroline A. Kilbourne, Ralph P. Kraft, Maurice A. Leutenegger, Ugo Lo Cicero, Seán C. McEntee, Daniel J. Patnaude

{"title":"Extending the high-resolution X-ray spectroscopy of Line Emission Mapper to UV/optically-bright sources","authors":"Jeremy J. Drake, Simon R. Bandler, Marco Barbera, Enrico Bozzo, William R. Dunn, Cecilia Garraffo, Thomas Gauron, Ludovic Genolet, Janice Houston, Richard L. Kelley, Caroline A. Kilbourne, Ralph P. Kraft, Maurice A. Leutenegger, Ugo Lo Cicero, Seán C. McEntee, Daniel J. Patnaude","doi":"10.1117/1.jatis.10.1.014006","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.014006","url":null,"abstract":"The Line Emission Mapper X-ray Probe-class mission concept is based on a microcalorimeter array tuned to energies in the range 0.1 to 2 keV. The study of cosmic ecosystems defines the directed portion of the Line Emission Mapper (LEM) mission, thus LEM has been optimized for observations of diffuse X-ray-emitting gas, largely with very low surface brightness. To broaden the range of targets that general observers can study with LEM, we have investigated the particular needs for UV/optical bright stars and solar-system objects. X-ray microcalorimeters are susceptible to degraded energy resolution that can result from thermal noise from residual UV, optical, and IR radiation. Using the present baseline design of the microcalorimeter thermal filters, we compute the UV-IR loading expected from bright stars over the effective temperature range 3500 to 39,000 K and from solar-system objects. The dominant leak of out-of-band energy is in the far-UV around 1500 Å, with a secondary peak of throughput around 4000 Å. For stars with magnitudes V<10 and for all solar-system planets as well as the Moon, the loading is significant, indicating that additional UV/optical blocking is essential if bright objects are to be observed. We have investigated the efficacy of several filter options for optical-blocking filters on the LEM filter wheel, demonstrating that new technology development is not necessary to open up many of these classes of objects to investigation with the high spectral resolution of LEM.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140148009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New extreme ultraviolet transmission measurements of two thin-film filters for imaging of plasmaspheric cold ions 用于质球冷离子成像的两款薄膜滤光片的新型极紫外透射测量结果

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.015003

Philippa Molyneux, Todd Veach, Michael Davis, Gregory Fletcher, Jerry Goldstein

引用次数: 0

Optical alignment technology for 1-meter accurate infrared magnetic system telescope 1 米精度红外磁系统望远镜的光学对准技术

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.014004

Xing Fu, Yu Lei, Hua Li, Kewei E., Peng Wang, Junpeng Liu, Yuliang Shen, Dongguang Wang

{"title":"Optical alignment technology for 1-meter accurate infrared magnetic system telescope","authors":"Xing Fu, Yu Lei, Hua Li, Kewei E., Peng Wang, Junpeng Liu, Yuliang Shen, Dongguang Wang","doi":"10.1117/1.jatis.10.1.014004","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.014004","url":null,"abstract":"Accurate infrared magnetic system (AIMS) is a ground-based solar telescope with the effective aperture of 1 m. The system has complex optical path and contains multiple aspherical mirrors. Since some mirrors are anisotropic in space, parallel light undergoes complex spatial reflection after passing through the optical pupil. It is also required that part of the optical axis coincides with the mechanical rotation axis. The system is difficult to align. This article proposes two innovative alignment methods. First, a modularized alignment method is presented. Each module is individually assembled with optical reference reserved. System integration can be completed through optical reference of each module. Second, computer-aided alignment technology is adopted to achieve perfect wavefront. By perturbing the secondary mirror (M2), the influence of M2 position on the wavefront is measured and the mathematical relationship is obtained. Based on the measured wavefront data, the least squares method is used to calculate the M2 alignment and multiple adjustments have been made to M2. The final system wavefront has reached RMS=0.12 λ@632.8 nm. Through observations of stars and sunspots, it has been demonstrated that the optical system has good wavefront quality. The observed sunspot is clear with the penumbral and umbra discernible. The proposed method has been verified and provides an effective alignment solution for complex off-axis telescope with large aperture.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140072573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing a new, large, complex observatory: learning the strategic lesson of newness from our experience on the James Webb Space Telescope 设计一个新的、大型、复杂的天文台：从詹姆斯-韦伯太空望远镜的经验中汲取 "新 "的战略教训

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.011209

Jonathan W. Arenberg, Tiffany Glassman, Elysia Starr, Reem Hejal, Till Liepmann, Charles Atkinson, Nina Altshuler, Annetta Luevano, Marc Roth, Perry Knollenberg

引用次数: 0

Optimized bandpasses for the Habitable Worlds Observatory’s exoEarth survey 宜居世界天文台外地球探测的优化带通

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.014005

Christopher C. Stark, Natasha Latouf, Avi M. Mandell, Amber Young

{"title":"Optimized bandpasses for the Habitable Worlds Observatory’s exoEarth survey","authors":"Christopher C. Stark, Natasha Latouf, Avi M. Mandell, Amber Young","doi":"10.1117/1.jatis.10.1.014005","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.014005","url":null,"abstract":"A primary scientific goal of the future Habitable Worlds Observatory will be the direct detection and characterization of Earth-like planets. Estimates of the exoplanet yields for this concept will help guide mission design through detailed trade studies. It is therefore critical that yield estimation codes optimally adapt observations to the mission’s performance parameters to ensure accurate trade studies. To aid in this, we implement wavelength optimization in yield calculations for the first time, allowing the yield code to determine the ideal detection and characterization bandpasses. We use this capability to confirm the observational wavelength assumptions made for the large UV/Optical/IR surveyor, design B (LUVOIR-B) study, namely that the optimum detection wavelength is 500 nm for the majority of targets and the optimum wavelength to detect water is near 1000 nm, given LUVOIR-B’s assumed instrument performance parameters. We show that including the wavelength-dependent albedo of an Earth twin as a prior provides no significant benefit to the yields of exoEarth candidates and caution against tuning observations to modern Earth twins. We also show that coronagraphs whose inner working angles are similar to step functions may benefit from wavelength optimization and demonstrate how wavelength-dependent instrument performance can impact the optimum wavelengths for detection and characterization. The optimization methods we implement automate wavelength selection and remove uncertainties regarding these choices, helping to adapt the observations to the instrument’s performance parameters.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140126555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extreme broadband dichroics: Monte Carlo transmission line modeling for astronomical spectroscopy 极宽带分色镜：用于天文光谱学的蒙特卡洛传输线建模

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2024-03-01 DOI: 10.1117/1.jatis.10.1.018005

Vinooja Thurairethinam, Giorgio Savini, Gary Hawkins, Paolo Chioetto

{"title":"Extreme broadband dichroics: Monte Carlo transmission line modeling for astronomical spectroscopy","authors":"Vinooja Thurairethinam, Giorgio Savini, Gary Hawkins, Paolo Chioetto","doi":"10.1117/1.jatis.10.1.018005","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.018005","url":null,"abstract":"Dichroic beamsplitters, or dichroics, rely on the optical interference that occurs within thin-film layers to ensure the separation of the transmission and reflection of selective wavelengths of an incident beam of light at a given angle of incidence. Utilized within the optical systems of numerous space telescopes, they act to separate the incoming light spectrally and spatially into various channels. As space missions increasingly demand simultaneous observations across wavebands spanning extreme wavelength ranges, the necessity for exceedingly complex broadband dichroics has emerged. Subsequently, the uncertainties pertaining to their optical performance have also become more intricate. We use transmission line modeling to evaluate the spectral performance of multilayer coatings deposited on a substrate material for given thicknesses, materials, angles of incidence, and polarization. A dichroic recipe in line with the typical specifications and requirements of a dichroic is designed with the aid of a Monte Carlo simulation. The tolerances of the coating performance to systematic and random uncertainties from the manufacturing process, as well as from environmental changes in space, are studied. With the aid of accurate manufacturing recipes and uncertainty amplitudes from commercial manufacturers, this tool can predict variations in the optical performance that result from the propagation of each of these uncertainties for various hypothetical scenarios and systematic effects.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140148006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0