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COMPOSITION OF THE SOLAR CORONA, SOLAR WIND, AND SOLAR ENERGETIC PARTICLES
- J. Schmelz, D. Reames, R. von Steiger, S. Basu
- Physics
- 10 August 2012
Along with temperature and density, the elemental abundance is a basic parameter required by astronomers to understand and model any physical system. The abundances of the solar corona are known to…
Neon Lights up a Controversy: The Solar Ne/O Abundance
- J. Schmelz, K. Nasraoui, J. Roames, L. Lippner, J. Garst
- Physics
- 7 October 2005
The standard solar model was so reliable that it could predict the existence of the massive neutrino. Helioseismology measurements were so precise that they could determine the depth of the…
The Many Faces of the Sun : A Summary of the Results from NASA's Solar Maximum Mission
- K. Strong, J. Saba, B. Haisch, J. Schmelz
- Physics
- 1999
The Solar Maximum Mission Solar Irradiance Variations Active Regions Coronal Abundances Coronal Mass Ejections Preflare Activity Particle Acceleration in Flares Nonthermal Flare Emissions…
Observational Constraints on Coronal Heating Models Using Coronal Diagnostics Spectrometer and Soft X-Ray Telescope Data
- J. Schmelz, R. T. Scopes, J. Cirtain, H. D. Winter, J. Allen
- Physics
- 1 August 2001
We have constructed a multithermal differential emission measure distribution for several pixels along a relatively isolated coronal loop on the southwest limb of the solar disk using spectral line…
USING A DIFFERENTIAL EMISSION MEASURE AND DENSITY MEASUREMENTS IN AN ACTIVE REGION CORE TO TEST A STEADY HEATING MODEL
- A. Winebarger, J. Schmelz, H. Warren, S. Saar, V. Kashyap
- Physics
- 24 June 2011
The frequency of heating events in the corona is an important constraint on the coronal heating mechanisms. Observations indicate that the intensities and velocities measured in active region cores…
Fe XVII Soft X-Ray Lines: Theory and Data Comparisons
- J. Saba, J. Schmelz, A. Bhatia, K. Strong
- Physics
- 10 January 1999
Fe XVII soft X-ray spectral emission lines are examined using data from the Flat Crystal Spectrometer (FCS) on the Solar Maximum Mission satellite. Results are compared with theoretical calculations…
POINT-SPREAD FUNCTIONS FOR THE EXTREME-ULTRAVIOLET CHANNELS OF SDO/AIA TELESCOPES
- B. Poduval, C. Deforest, J. Schmelz, S. Pathak
- Physics
- 27 February 2013
We present the stray-light point-spread functions (PSFs) and their inverses we characterized for the Atmospheric Imaging Assembly (AIA) EUV telescopes on board the Solar Dynamics Observatory (SDO)…
The sun : a laboratory for astrophysics
- J. Schmelz, John C. Brown
- Physics
- 1992
Preface. 1. Opening Address J.C. Brown. Part I: Solar Interior. 2. The Structure and Evolution of the Sun J. Christensen-Dalsgaard. 3. Seismic Investigation of the Solar Interior J.…
THE COLD SHOULDER: EMISSION MEASURE DISTRIBUTIONS OF ACTIVE REGION CORES
- J. Schmelz, S. Pathak
- Physics
- 10 September 2012
The coronal heating mechanism for active region core loops is difficult to determine because these loops are often not resolved and cannot be studied individually. Rather, we concentrate on the…
Investigating the effect of Opacity in Soft X-Ray Spectral Lines Emitted by Solar Coronal Active Regions
- J. Schmelz, J. Saba, J. C. Chauvin, K. Strong
- Physics
- 1 March 1997
Current literature suggests that several lines in the soft X-ray portion of the coronal spectrum may not be optically thin. Here, we wish to check this possibility for five of the brightest resonance…
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