High-resolution time-resolved extreme ultraviolet spectroscopy on NSTX

2012 ◽  
Vol 83 (10) ◽  
pp. 10D520 ◽  
Author(s):  
J. K. Lepson ◽  
P. Beiersdorfer ◽  
J. Clementson ◽  
M. Bitter ◽  
K. W. Hill ◽  
...  
Keyword(s):  
High Resolution ◽  
Extreme Ultraviolet ◽  
Ultraviolet Spectroscopy ◽  
Resolution Time ◽  
Time Resolved

scholarly journals Extreme Ultraviolet Spectroscopy of Magnetic Cataclysmic Variables

1996 ◽  
Vol 152 ◽  
pp. 309-316
Author(s):  
Frits Paerels ◽  
Min Young Hur ◽  
Christopher W. Mauche
Keyword(s):  
High Resolution ◽  
White Dwarf ◽  
Extreme Ultraviolet ◽  
Cataclysmic Variables ◽  
Ultraviolet Spectroscopy ◽  
Temperature Structure ◽  
Polar Cap ◽  
Ultraviolet Emission ◽  
X Ray ◽  
Magnetic Cataclysmic Variables

A longstanding problem in the interpretation of the X-ray and extreme ultraviolet emission from strongly magnetic cataclysmic variables can be addressed definitively with high resolution EUV spectroscopy. A detailed photospheric spectrum of the accretion-heated polar cap of the white dwarf is sensitive in principle to the temperature structure of the atmosphere. This may allow us to determine where and how the bulk of the accretion energy is thermalized. The EUVE data on AM Herculis and EF Eridani are presented and discussed in this context.

Mapping cardiac-induced lung motion using high-resolution time-resolved phase-contrast synchrotron computed tomography

2018 ◽  
Author(s):  
Luca Fardin ◽  
Ludovic Broche ◽  
Goran Lovric ◽  
Anders Larsson ◽  
Alberto Bravin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Phase Contrast ◽  
Resolution Time ◽  
Time Resolved ◽  
Lung Motion

Probing Benzene in a New Way:  High-Resolution Time-resolved Rotational Spectroscopy†

2001 ◽  
Vol 105 (23) ◽  
pp. 5618-5621 ◽  
Author(s):  
Christoph Riehn ◽  
Andreas Weichert ◽  
Bernhard Brutschy
Keyword(s):  
High Resolution ◽  
Rotational Spectroscopy ◽  
Resolution Time ◽  
Time Resolved

scholarly journals A Geostationary Instrument Simulator for Aerosol Observing System Simulation Experiments

Atmosphere ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 2 ◽  
Author(s):  
Patricia Castellanos ◽  
Arlindo da Silva ◽  
Anton Darmenov ◽  
Virginie Buchard ◽  
Ravi Govindaraju ◽  
...  
Keyword(s):  
High Resolution ◽  
Rayleigh Scattering ◽  
System Simulation ◽  
Visible Spectral Range ◽  
Geostationary Orbit ◽  
Atmospheric Composition ◽  
Resolution Time ◽  
Time Resolved ◽  
The Impact ◽  
Time Resolved Measurements

In the near future, there will be several new instruments measuring atmospheric composition from geostationary orbit over North America, East Asia, and Europe. This constellation of satellites will provide high resolution, time resolved measurements of trace gases and aerosols for monitoring air quality and tracking pollution sources. This paper describes a detailed, fast, and accurate (less than 1.0% uncertainty) method for calculating synthetic top of the atmosphere (TOA) radiances from a global simulation with a mesoscale free running model, the GEOS-5 Nature Run, for remote sensing instruments in geostationary orbit that measure in the ultraviolet-visible spectral range (UV-Vis). Generating these synthetic observations is the first step of an Observing System Simulation Experiment (OSSE), a framework for evaluating the impact of a new observation or algorithm. This paper provides details of the model sampling, aerosol and cloud optical properties, surface reflectance modeling, Rayleigh scattering calculations, and a discussion of the uncertainties of the simulated TOA radiance. An application for the simulated TOA radiance observations is demonstrated in the manuscript. Simulated TEMPO (Tropospheric Emissions: Monitoring of Pollution) and GOES-R (Geostationary Operational Environmental Satellites) observations were used to show how observations from the two instruments could be combined to facilitate aerosol type discrimination. The results demonstrate the viability of a detailed instrument simulator for radiance measurements in the UV-Vis that is capable of accurately simulating high resolution, time-resolved measurements with reasonable computational efficiency.

scholarly journals OPTICAL AND ULTRAVIOLET STELLAR FLARE SPECTROSCOPY

1983 ◽  
Vol 71 ◽  
pp. 207-221
Author(s):  
Simon P. Worden
Keyword(s):  
High Resolution ◽  
Solar Flares ◽  
Spectroscopic Data ◽  
Resolution Time ◽  
Stellar Flare ◽  
Dwarf Stars ◽  
Time Resolved ◽  
International Ultraviolet Explorer ◽  
M Dwarf Stars ◽  
M Dwarf

As for solar flares, one of the most physically revealing types of data for M-dwarf flares are high-resolution, time-resolved spectra. Due to the intrinsically faint nature of the M-dwarf stars, spectroscopic data has tended to be of low spectral (˜ 5 Ǻ) and temporal (˜ 5 min) resolution. However, with the development of image intensified spectrographs and fast, efficient digital detectors, the last several years have seen the successful acquisition of both high time and spectral resolution M-dwarf flare spectra. Recent programs have also been successfully conducted using the International Ultraviolet Explorer (IUE) satellite to obtain UV and EUV spectra of M-dwarf flares. These data reveal that dwarf M star flares are remarkably similar to solar flares in all aspects of their spectroscopic phenomenology.

High-resolution time-resolved contrast-enhanced 3D MRA by combining SENSE with keyhole and SLAM strategies

2004 ◽  
Vol 22 (9) ◽  
pp. 1161-1168 ◽  
Author(s):  
Yijing Wu ◽  
K. Craig Goodrich ◽  
Henry R. Buswell ◽  
Gregory L. Katzman ◽  
Dennis L. Parker
Keyword(s):  
High Resolution ◽  
Resolution Time ◽  
Time Resolved ◽  
Contrast Enhanced
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