Results 21 to 30 of about 3,030,245 (218)

Design and development of an adaptive optics system in visible and near-infrared for Inter-University Centre for Astronomy and Astrophysics 2-meter telescope [PDF]

Journal of Astronomical Telescopes, Instruments, and Systems, 2019
Robo-AO is the first robotic autonomous laser-guided adaptive optics (AO) system operating in the sky. It is a very economical AO system especially suitable for observations with 1- to 3-m class telescopes. A second Robo-AO system, which works both in the visible and near-infrared wavelengths, has been developed to improve the image quality of the 2-m ...
Jyotirmay Paul, Hillol K. Das, A. N. Ramaprakash, Mahesh Burse, Pravin Chordia, Kalpesh Chillal, Gaurav Datir, Bhushan Joshi, Pravin Khodade, Abhay Kohok, Vilas Mestry, Sujit Punnadi, Chaitanya Rajarshi, Chikku Shekhar   +13 more
openaire   +2 more sources

An SSPM-Based High-Speed Near-Infrared Photometer for Astronomy [PDF]

Publications of the Astronomical Society of the Pacific, 1996
20 pages, 8 ...
Scott Ransom
exaly   +3 more sources

Superconducting tunnel junctions as detectors for ultraviolet, optical, and near infrared astronomy [PDF]

Astronomy and Astrophysics, 1997
We discuss the capabilities of superconduct- ing tunnel junctions as detectors for ultraviolet, optical, and near-infrared astronomy. Such junctions have recently been shown to allow the detection of individual optical and ultraviolet photons with an inherent spectral resolu- tion related to the critical temperature of the absorbing superconductor ...
Peter Jakobsen, N Rando, B G Taylor
exaly   +2 more sources

First Daytime Near-infrared Photometric Observations at Antarctic Dome A

The Astronomical Journal
Located at the highest point on the Antarctic Plateau’s ice sheet, Dome A is generally believed to be one of the best places on Earth for nighttime astronomy in the optical and near-infrared (NIR) bands.
Chenwei Yang, Tuo Ji, Zhengyang Li, Jiannan Cong, Chao Chen, Michael C. B. Ashley, Zhixu Wu, Haimeng Li, Yuhan Luo, Liang Xi, Yipeng Zhou, Yaqi Zhao, Xingyu Zhou, Lei Hao, Zhongping Zhang, Hongyan Zhou, Peng Jiang   +16 more
doaj   +2 more sources

Light people: Professor Mengkun Liu [PDF]

Light: Science & Applications
Editorial At the frontier where light meets quantum matter, Professor Mengkun Liu has built a distinctive research program that integrates advanced optical nanoscopy, quantum materials, and emergent light–matter interactions.
Wenjun Zheng, Siqiu Guo
doaj   +2 more sources

The Mauna Kea Observatories Near‐Infrared Filter Set. II. Specifications for a NewJHKL′M′ Filter Set for Infrared Astronomy [PDF]

Publications of the Astronomical Society of the Pacific, 2002
We present a description of a new 1--5 $μ$m filter set similar to the long-used JHKLM filter set derived from that of Johnson. The new Mauna Kea Observatories Near-Infrared (MKO-NIR) filter set is designed to reduce background noise, improve photometric transformations from observatory to observatory, provide greater accuracy in extrapolating to zero ...
Tokunaga, A., Simons, D., Vacca, W.
openaire   +5 more sources

The Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope. I. Overview of the instrument and its capabilities [PDF]

Astronomy & Astrophysics, 2022
We provide an overview of the design and capabilities of the near-infrared spectrograph (NIRSpec) onboard the James Webb Space Telescope. NIRSpec is designed to be capable of carrying out low-resolution ($R\!=30\!-330$) prism spectroscopy over the ...
P. Jakobsen, P. Ferruit, C. A. de Oliveira, S. Arribas, G. Bagnasco, R. Barho, T. L. Beck, S. Birkmann, T. Boker, A. Bunker, S. Charlot, P. de Jong, G. de Marchi, R. Ehrenwinkler, M. Falcolini, R. Fels, M. Franx, D. Franz, M. Funke, G. Giardino, X. Gnata, W. Holota, K. Honnen, P. Jensen, M. Jentsch, T. Johnson, D. Jollet, H. Karl, G. Kling, J. Kohler, M. Kolm, N. Kumari, M. Lander, R. Lemke, M. López-Caniego, N. Lutzgendorf, R. Maiolino, E. Manjavacas, A. Marston, M. Maschmann, R. Maurer, B. Messerschmidt, S. Moseley, P. Mosner, D. Mott, J. Muzerolle, N. Pirzkal, J. Pittet, A. Plitzke, W. Posselt, B. Rapp, B. Rauscher, T. Rawle, H. Rix, A. Rodel, P. Rumler, E. Sabbi, J. C. Salvignol, T. Schmid, M. Sirianni, C. Smith, P. Strada, M. Plate, J. Valenti, T. Wettemann, T. Wiehe, M. Wiesmayer, C. Willott, R. Wright, P. Zeidler, C. Zincke   +70 more
semanticscholar   +1 more source

Multi-wavelength study of Galactic star-forming regions with near-infrared instruments on 2 - 4 meter class Indian telescopes [PDF]

Anais da Academia Brasileira de Ciências, 2020
We present a brief description of the activities of the infrared astronomy group of Tata Institute of Fundamental Research with special emphasis on the near-infrared instrumentation for star formation studies using 2 - 4-meter class Indian ground-based ...
DEVENDRA K. OJHA
doaj   +1 more source

Optimized Photometric Redshifts for the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) [PDF]

Astrophysical Journal, 2022
We present the first comprehensive release of photometric redshifts (photo- z's) from the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey (CANDELS) team.
D. Kodra, B. Andrews, J. Newman, S. Finkelstein, A. Fontana, N. Hathi, M. Salvato, T. Wiklind, S. Wuyts, Adam Broussard, N. Chartab, C. Conselice, M. Cooper, A. Dekel, M. Dickinson, H. Ferguson, E. Gawiser, N. Grogin, Kartheik G. Iyer, J. Kartaltepe, S. Kassin, A. Koekemoer, D. Koo, R. Lucas, K. Mantha, D. H. Mcintosh, B. Mobasher, C. Pacifici, P. Pérez-González, P. S. D. O. Physics, Astronomy, U. Pittsburgh, Pittsburgh Particle Physics, Astrophysics, C. Center, D. O. Astronomy, T. U. O. T. A. Austin, Oss. Astronomico di Roma, Space Telescope Science Institute, Max-Planck-Institut fur extraterrestrische Physik, D. Physics, C. U. O. America, U. Bath, Rutgers, The State University of New Jersey, U. California, Irvine, J. B. C. F. Astrophysics, U. Manchester, Center for Particle Cosmology, Department of PhysicsAstronomy, R. I. O. Physics, The Hebrew University, NSF's NOIRLab, D. I. F. Astronomy, U. Toronto, S. O. Physics, R. I. O. Technology, T. W. H. M. I. D. O. PhysicsAstronomy, J. University, Santa Cruz, M. I. F. Astrophysics, U. Minnesota, U. Missouri, Kansas City, Riverside, C. D. Astrobiolog'ia, Cab-Csic-Inta, C. Ajalvir   +68 more
semanticscholar   +1 more source

Near-infrared spectra of aqueous glucose solutions [PDF]

, 2022
Infrared spectroscopy is widely utilized in the scientific community for chemical characterization of materials. Near-infrared spectroscopy relies on spectral measurements between 900 and 2,500 nm.
Lee, Tse-Ang, Peng, Jessie, Hutter, Tanya   +2 more
core   +1 more source