Results 21 to 30 of about 16,597 (261)

Precipitable Water Vapor Conditions for Infrared Observations at Korean Astronomical Observatories [PDF]

open access: yesJournal 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
doaj   +1 more source

SOFIA and Infrared Astronomy

open access: yes, 2017
The item is a lecture about Infrared Astronomy with a focus on Stat Formation.
Hamidouche, Mourad
core   +2 more sources

Origin of an orbiting star around the galactic supermassive black hole

open access: yesProceedings 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
doaj   +1 more source

Superconducting Microwave Resonator Arrays for Submillimeter/Far-infrared Imaging [PDF]

open access: yes, 2012
Superconducting microwave resonators have the potential to revolutionize submillimeter and far-infrared astronomy, and with it our understanding of the universe.
Noroozian, Omid
core   +1 more source

Mapping the Decline with Redshift of Dusty Star-forming Galaxies Using JWST and SCUBA-2

open access: yesThe 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
doaj   +1 more source

The effect of the impact of comet Shoemaker Levy‐9 on Jupiter's aurorae [PDF]

open access: yes, 1995
We present infrared spectra and images of the jovian aurorae taken at wavelengths sensitive to the H-3(+) molecular ion during the period around the impact of Comet Shoemaker Levy-9.
Tennyson, J.   +25 more
core   +1 more source

Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4

open access: yesThe 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
doaj   +1 more source

Exploring the Extremes: Characterizing a New Population of Old and Cold Brown Dwarfs

open access: yesThe 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
doaj   +1 more source

Second-Order Gauge-Invariant Cosmological Perturbation Theory: Current Status

open access: yesAdvances in Astronomy, 2010
The current status of the recent developments of the second-order gauge-invariant cosmological perturbation theory is reviewed. To show the essence of this perturbation theory, we concentrate only on the universe filled with a single scalar field ...
Kouji Nakamura
doaj   +1 more source

Cooperative polariton dynamics in feedback-coupled cavities

open access: yesNature Communications, 2017
Rabi oscillations of magnons typically do not have few photon control of single spin quantum systems. Here, the authors use a feedback cavity architecture to increase magnon-photon cooperativity, enabling increased control of light-matter interactions in
Bimu Yao   +9 more
doaj   +1 more source

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