Publications (12)
RHESSI Microflare Statistics II. X-ray Imaging, Spectroscopy & Energy Distributions
I. G. Hannah, S. Christe, S. Krucker +3
We present X-ray imaging and spectral analysis of all microflares the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) observed between March 2002 and March 2007, a to…
An Intriguing Solar Microflare Observed with RHESSI, Hinode and TRACE
I. G. Hannah, S. Krucker, H. S. Hudson +2
Investigate particle acceleration and heating in a solar microflare. In a microflare with non-thermal emission to remarkably high energies ( keV), we investigate the hard X-ra…
A single hollow beam optical trap for cold atoms
S. Kulin, S. Aubin, S. Christe +3
We present an optical trap for atoms that we have developed for precision spectroscopy measurements. Cold atoms are captured in a dark region of space inside a blue-detuned hollow…
Science Objectives for an X-Ray Microcalorimeter Observing the Sun
J. Martin Laming, J. Adams, D. Alexander +57
We present the science case for a broadband X-ray imager with high-resolution spectroscopy, including simulations of X-ray spectral diagnostics of both active regions and solar fla…
Photospheric Magnetic Evolution in the WHI Active Regions
B. T. Welsch, S. Christe, J. M. McTiernan
Sequences of line-of-sight (LOS) magnetograms recorded by the Michelson-Doppler Imager are used to quantitatively characterize photospheric magnetic structure and evolution in thre…
Microflares and the Statistics of X-ray Flares
I. G. Hannah, H. S. Hudson, M. Battaglia +5
This review surveys the statistics of solar X-ray flares, emphasising the new views that RHESSI has given us of the weaker events (the microflares). The new data reveal that these…
Use of a ray-tracing simulation to characterize ghost rays in the FOXSI rocket experiment
J. C. Buitrago-Casas, S. Christe, L. Glesener +12
Imaging X-rays by direct focusing offers greater sensitivity and a higher dynamic range compared to techniques based on indirect imaging. The Focusing Optics X-ray Solar Imager (FO…
Fine-pitch CdTe detector for hard X-ray imaging and spectroscopy of the Sun with the FOXSI rocket experiment
S. Ishikawa, M. Katsuragawa, S. Watanabe +8
We have developed a fine-pitch hard X-ray (HXR) detector using a cadmium telluride (CdTe) semiconductor for imaging and spectroscopy for the second launch of the Focusing Optics So…
The Multiview Observatory for Solar Terrestrial Science (MOST)
N. Gopalswamy, S. Christe, S. F. Fung +54
We report on a study of the Multiview Observatory for Solar Terrestrial Science (MOST) mission that will provide comprehensive imagery and time series data needed to understand the…
Solar Eruptive Events (SEE) 2020 Mission Concept
R. P. Lin, A. Caspi, S. Krucker +20
Major solar eruptive events (SEEs), consisting of both a large flare and a near simultaneous large fast coronal mass ejection (CME), are the most powerful explosions and also the m…
Estimates of Densities and Filling Factors from a Cooling Time Analysis of Solar Microflares Observed with RHESSI
R. N. Baylor, P. A. Cassak, S. Christe +6
We use more than 4,500 microflares from the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) microflare data set (Christe et al., 2008, Ap. J., 677, 1385) to estimate…
Investigating the differential emission measure and energetics of microflares with combined SDO/AIA and RHESSI observations
A. R. Inglis, S. Christe
An important question in solar physics is whether solar microflares, the smallest currently observable flare events in X-rays, possess the same energetic properties as large flares…