Results 11 to 20 of about 909,763 (253)
Fast Infrared Detector for Time-Domain Astronomy
InstrumentsMulti-messenger astronomy and time-domain astronomy are strongly linked even if they do not have the same objectives. Multi-messenger astronomy is an astrophysical observation approach born by the simultaneous, even if casual, detection of a few events ...
Alessandro Drago
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Infrared Upconversion for Astronomy [PDF]
Optical Engineering, 1977 The basic theory of upconversion is presented, along with a brief historical summary of upconversion techniques. Upconverters were used in astronomical studies, but have met with only modest success. Upconversion will become a useful detection method for astronomy only if substantial but perhaps forseeable, improvements can be realized.
exaly +2 more sources
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
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Near-Infrared Observing Conditions at the BOAO and the SOAO [PDF]
Journal of Astronomy and Space Sciences, 2004 Korea Astronomy Observatory(KAO) has been developing the KAONICS, KAO Near-Infrared Camera System, which will be used for near-infrared observations in the ground-based telescopes of Korea.
Bongkon Moon +6 more
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Universe, 2023 Investigating the extinction properties in dense molecular clouds is of significant importance for understanding the behavior of interstellar dust and its impact on observations.
Jun Li, Xi Chen
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Precipitable Water Vapor Conditions for Infrared Observations at Korean Astronomical Observatories [PDF]
Journal of Astronomy and Space Sciences, 2007 KASINICS (Korea Astronomy and Space Science Institute Near Infrared Camera System) is equipped with a InSb array which can observe 1--5~μm bands in near-infrared.
Sungho Lee +10 more
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Origin of an orbiting star around the galactic supermassive black hole
Proceedings of the Japan Academy. Series B, Physical and Biological Sciences, 2023 The tremendous tidal force that is linked to the supermassive black hole (SMBH) at the center of our galaxy is expected to strongly subdue star formation in its vicinity.
Shogo NISHIYAMA +8 more
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Generative AI-Enabled Discovery and Experimental Demonstration of Ultra-Broadband Epsilon-Near-Zero Perfect Absorbers. [PDF]
Adv Sci (Weinh)Researchers developed and applied a generative artificial intelligence (AI) model to optimize epsilon‐near‐zero thin film stacks for ultra‐broadband perfect absorption of light. The fabricated AI‐designed absorber, with a total thickness of only 160 nm, experimentally demonstrated an absorption bandwidth exceeding 1000 nm while maintaining greater than
Dang D +10 more
europepmc +2 more sources
Highlights of Astronomy, 1968 The Earth’s atmosphere transmits infrared radiation through a number of windows. Table 1 lists the seven photometric systems in use at the University of Arizona which are chosen to fit the windows between 1·0 and 25 microns. An absolute calibration (Johnson, 1965; Low, 1966) has been worked out for each wavelength band and, for reference, we include an
openaire +1 more source
Mapping the Decline with Redshift of Dusty Star-forming Galaxies Using JWST and SCUBA-2
The Astrophysical Journal, 2023 We use JWST NIRCam observations of the massive lensing cluster field A2744 to develop a red galaxy selection of f _F444W > 1 μ Jy and f _F444W / f _F150W > 3.5 that picks out all nine >4.5 σ Atacama Large Millimeter/submillimeter Array 1.1 or 1.2 mm ...
A. J. Barger, L. L. Cowie
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