152 citations · 475 across the 15 of their papers we have counts for
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Flare Impulsive-phase Durations
Brian R. Dennis, Hugh Hudson, Joel Allred
This Research Note is in response to the recent paper by S. M. Perriyil et al. (2026). They provide measurements of the time delay (delta t) between the hard X-ray and soft X-ray p…
Emission Measures Demystified
Brian R. Dennis, Kenneth J. H. Phillips
We review the terms, spectral radiance and spectral irradiance, and show how their precise definitions are crucial for interpreting observations made with different instruments cov…
Quasi-Periodic Pulsations during the Impulsive and Decay phases of an X-class Flare
Laura A. Hayes, Peter T. Gallagher, Brian R. Dennis +3
Quasi-periodic pulsations (QPP) are often observed in X-ray emission from solar flares. To date, it is unclear what their physical origins are. Here, we present a multi-instrument…
Flare Footpoint Regions and a Surge Observed by the Hinode/EUV Imaging Spectrometer (EIS), RHESSI, and SDO/AIA
George A. Doschek, Harry P. Warren, Brian R. Dennis +2
The Extreme-ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft observed flare footpoint regions coincident with a surge for a M3.7 flare observed on 25 September 2011…
The Solar Flare Iron Abundance
K. J. H. Phillips, B. R. Dennis
The abundance of iron is measured from emission line complexes at 6.65 keV (Fe line) and 8 keV (Fe/Ni line) in {\em RHESSI} X-ray spectra during solar flares. Spectra during long-d…
The Signature of Flares in VIRGO Total Solar Irradiance Measurements
A. Quesnel, B. R. Dennis, B. Fleck +2
We use Total Solar Irradiance (TSI) measurements from the VIRGO (Variability of solar IRradiance and Gravity Oscillations) instrument on board SOHO to obtain preliminary estimates…
Evidence of a Plasmoid-Looptop Interaction and Magnetic Inflows During a Solar Flare/CME Eruptive Event
Ryan O. Milligan, R. T. James McAteer, Brian R. Dennis +1
Observational evidence is presented for the merging of a downward-propagating plasmoid with a looptop kernel during an occulted limb event on 2007 January 25. RHESSI lightcurves in…