Results 1 to 10 of about 6,638 (169)
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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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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Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4
The Astrophysical Journal, 2023 We present a multi-epoch spectroscopic study of LkCa 4, a heavily spotted non-accreting T Tauri star. Using SpeX at NASA’s Infrared Telescope Facility (IRTF), 12 spectra were collected over five consecutive nights, spanning ≈1.5 stellar rotations.
Facundo Pérez Paolino +6 more
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Exploring the Extremes: Characterizing a New Population of Old and Cold Brown Dwarfs
The Astronomical Journal, 2023 Mapping out the populations of thick disk and halo brown dwarfs is important for understanding the metallicity dependence of low-temperature atmospheres and the substellar mass function.
Aaron M. Meisner +5 more
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The SPHEREx Target List of Ice Sources (SPLICES)
The Astrophysical Journal, 2023 One of the primary objectives of the SPHEREx mission is to understand the origin of molecules such as H _2 O, CO _2 , and other volatile compounds at the early stages of planetary system formation.
Matthew L. N. Ashby +18 more
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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
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