Results 31 to 40 of about 16,597 (261)

Infrared Astronomy [PDF]

open access: yesHighlights 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

Unveiling the nature of SN 2022jli: The first double-peaked stripped-envelope supernova showing periodic undulations and dust emission at late times

open access: yesAstronomy & Astrophysics
We present optical and infrared observations from maximum light until around +800 days of supernova (SN) 2022jli, a peculiar stripped-envelope (SE) SN showing two maxima, each one with a peak luminosity of about 3 × 1042 erg s−1, separated by 50 days ...
Cartier Régis   +8 more
doaj   +1 more source

The SPHEREx Target List of Ice Sources (SPLICES)

open access: yesThe 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
doaj   +1 more source

On-board Data Processing to Lower Bandwidth Requirements on an Infrared Astronomy Satellite: Case of Herschel-PACS Camera

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
This paper presents a new data compression concept, “on-board processing,” for infrared astronomy, where space observatories have limited processing resources.
Christian Reimers   +4 more
doaj   +1 more source

DECam Multimessenger Astrophysics Pipeline. I. From Raw Data to Single-exposure Candidates

open access: yesThe Astronomical Journal
We introduce a pipeline that performs rapid image subtraction and source selection to detect transients, with a focus on identifying gravitational-wave optical counterparts using the Dark Energy Camera (DECam). In this work, we present the pipeline steps
Shenming Fu   +5 more
doaj   +1 more source

Infrared fibres in astronomical instrumentation [PDF]

open access: yes, 1995
For several years multi-object spectroscopy systems have been available for carrying out survey work in the visible region, but until very recently there has not been a system for the near infrared region.
Haynes, Roger
core  

Weakly‐Coordinating Non‐Fluorinated Diluents for Local High‐Concentration Electrolytes in Advanced Lithium Metal Batteries

open access: yesAdvanced Materials, EarlyView.
This perspective critically evaluates non‐fluorinated diluents in local high‐concentration electrolytes, categorizing their solvation behavior, interfacial mechanisms, and sustainability potential to guide future electrolyte design for lithium metal batteries.
Yin Cui   +8 more
wiley   +1 more source

Pushing The Limits of Mid-Wave Infrared Detection with Superconducting Nanowire Single-Photon Detectors [PDF]

open access: yesEPJ Web of Conferences
Extending single-photon detection capabilities into the mid- infrared is expected to have far-reaching implications for long-wavelength quantum optics, quantum and free-space communication, astronomy, environmental monitoring, and fundamental molecular ...
Oksenberg Eitan   +6 more
doaj   +1 more source

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud   +31 more
wiley   +1 more source

Design of the Optical System for a Protomodel of Space Infrared Cryogenic System [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2005
Many technical challenges are being tried for a large space infrared telescope, which is one of the major objectives of the Strategic Technology Road Map (STRM) of KASI (Korea Astronomy and Space Science Institute).
Dae-Hee Lee   +12 more
doaj   +1 more source

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