Effect of the Collision of Comet Shoemaker-Levy 9 on the Appearance of Jupiter in the IR
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Collision of Comet↗
SEARCH · Engineering Papers
Results for “Ir”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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IR Properties of Galactic Cirrus Near The Polar Caps
We present a systematic study of the infrared properties of the high galactic latitude sky, by examining two large sections of the IRAS Sky Survey, which cover galactic latitudes from b=20 to b=90, and b=-20 to b=-90, at a reduced resolution of 7.5'/pixel. The IRAS Sky Survey Atlas (ISSA) plates are used to determine the variation in color R(12,25), R(25,60)and R(60,100) of clouds with spatial scales of 1-5 degrees, as a funtion of galactic latitude, and also a function of the brightness of the emitting material.
Galactic Latitude Galactic Cirrus↗
Semiconductor mid-IR interband cascade lasers for trace gas monitoring
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diode lasers mid-infrared quantum well lasers semi↗
Progress of Sb-based type-II mid-IR interband cascade lasers
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diode lasers mid-infrared semiconductor superlatti↗
Mid-IR interband cascade lasers for chemical sensing
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diode lasers mid-infrared semiconductor superlatti↗
X-ray counts and contribution to the XRB of an IR selected sample of starburst and active galaxies
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infrared galaxies↗
Pre-protostellar core properties from Far-IR observations
We present the results of far-infrared ISOPHOT observations of the pre-protostellar cores L1498, B133 and B68.
pre-protostellar core↗
Cryogenic delay line for Far-IR interferometry in space
We discuss the design, current status, and ongoing development of a cryogenic delay line for long-baseline direct-detection interferometry in the far-infrared.
far infrared interferometry cryogenic↗
Ground and Space-based Optical & IR Stellar Interferometry
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Interferometry↗
The Milky Way, the Local Group & the IR Tully-Fisher Diagram
Using the near infrared fluxes of local group galaxies derived from Cosmic Background Explorer/Diffuse Infrared Background Experiment band maps and published Cepheid distances, we construct Tully-Fisher diagrams for the Local Group.
Milky Way↗
(abstract) Spatial Power Spectral Measurements of IR Cirrus
We have used recently released IRAS Sky Survey Atlas (ISSA) image data to investigate the surface brightness distribution of selected regions of infrared cirrus using power spectral analysis techniques.
cirrus infrared IRAS Sky Survey Atlas brightness d↗
Large scale geostrophic winds with a full representation of the Coriolis force: application to IR observations of the Upper Jovian troposhpere
The diagnostics of large scale geostrophy in a stratified atmosphere are revisited using a full Coriolis force.
athospheric dynamics geostrophy infrared observati↗
A cryogenic Mid-IR nuller for TPF
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nulling interferometry↗
Mid-IR interband cascade lasers for chemical sensing
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diode lasers↗
Mid-IR distributed feedback interband cascade lasers and their application for detection of CH4
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semiconductor superlattices↗
SPECS: The Kilometer-baseline Far-IR Interferometer in NASA's Space Science Roadmap Presentation
A viewgraph presentation describing the Submillimeter Probe of the Evolution of Cosmic Structure (SPECS) mission is shown. The topics include: 1) Context: community planning and study status; 2) Science goals; 3) Mission requirements; 4) Mission concepts for SPIRIT and SPECS; and 5) Tethered formation flying, a key enabling technology.
Abel, Tom↗
RTF+SpeX Near-IR Images and Spectra of the Moon Pre-impact and at Impact of SMART-1
We present SpeX 0.8-2.5 micron spectra and Br-gamma or J H or K-band images of the Moon on 2006 July 10 UT, 2006 Sep 1 UT, and 2006 Sep 3 UT. The first two dates are data taken in preparation (near Full Moon and 1 st quarter Moon) for observing the impact of ESA's SMART-1 Lunar satellite on 2006 Sep 3 UT. We hope to be presenting images (about 1 arc minute by 1 arc minute), and low resolution (Prism mode) spectra of the SMART-1 impact to be taken with the 60 arc second long slit.
Wooden, Diane H.↗
Characterization of Lubricants on Ball Bearings by FT-IR Using an Integrating Sphere
Fourier Transform-Infrared reflectance microspectroscopy has been used extensively for the examination of coatings on nonplanar surfaces such as ball bearings. While this technique offers considerable advantages, practical application has many drawbacks, some of which are easily overcome by the use of integrating sphere technology. This paper describes the use of an integrating sphere for the quantification of thin layers of lubricant on the surface of ball bearings and the parameters which require optimization in order to obtain reliable data. Several applications of the technique are discussed including determination of lubricant load on 12.7 mm steel ball bearings and the examination of degraded lubricant on post mortem specimens.
Street, K. W.↗