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Revealing Flare Energetics and Dynamics with SDO EVE Solar Extreme Ultraviolet Spectral Irradiance Observations
Thomas N. Woods, Phillip C. Chamberlin, Andrew Jones +7
NASA's Solar Dynamics Observatory (SDO) Extreme-ultraviolet Variability Experiment (EVE) has been making solar full-disk extreme ultraviolet (EUV) spectral measurements since 2010…
Identifying Spicules in Mg II: Statistics and Comparisons with Hα
Vicki L. Herde, Souvik Bose, Phillip C. Chamberlin +4
The Sun's chromosphere is a critical region to understand when considering energy and mass deposition into the transition region and corona, but many of the smaller, faster events…
First Results for Solar Soft X-ray Irradiance Measurements from the Third Generation Miniature X-Ray Solar Spectrometer
Thomas N. Woods, Bennet Schwab, Robert Sewell +11
Three generations of the Miniature X-ray Solar Spectrometer (MinXSS) have flown on small satellites with the goal "to explore the energy distribution of soft X-ray (SXR) emissions…
Observational Analysis of Lyman-alpha Emission in Equivalent Magnitude Solar Flares
Harry J. Greatorex, Ryan O. Milligan, Phillip C. Chamberlin
The chromospheric Lyman-alpha line of neutral hydrogen (Ly; 1216 Å) is the most intense emission line in the solar spectrum, yet until recently observations of flare-related Ly$…
Spicules in IRIS Mg II Observations: Automated Identification
Vicki L. Herde, Phillip C. Chamberlin, Don Schmit +4
We have developed an algorithm to identify solar spicules in the first ever systematic survey of on-disk spicules exclusively using Mg II spectral observations. Using this algorith…
Fast Prograde Coronal Flows in Solar Active Regions
Hugh S. Hudson, Sargam M. Mulay, Lyndsay Fletcher +6
We report the discovery and characterization of high-speed (>100 km/s) horizontal flows in solar active regions, making use of the Sun-as-a-star spectroscopy in the range 5-105 nm…
SunCET: A compact EUV instrument to fill a critical observational gap
James Paul Mason, Phillip C. Chamberlin, Daniel Seaton +16
The Sun Coronal Ejection Tracker (SunCET) is an extreme ultraviolet imager and spectrograph instrument concept for tracking coronal mass ejections through the region where they exp…
CME Acceleration as a Probe of the Coronal Magnetic Field
James Paul Mason, Phillip C. Chamberlin, Thomas N. Woods +5
By 2050, we expect that CME models will accurately describe, and ideally predict, observed solar eruptions and the propagation of the CMEs through the corona. We describe some of t…
Lyman-alpha Variability During Solar Flares Over Solar Cycle 24 Using GOES-15/EUVS-E
Ryan O. Milligan, Hugh S. Hudson, Phillip C. Chamberlin +2
The chromospheric Lyman-alpha line of neutral hydrogen (\lya; 1216Å) is the strongest emission line in the solar spectrum. Fluctuations in \lya\ are known to drive changes in plane…
The Instruments and Capabilities of the Miniature X-ray Solar Spectrometer (MinXSS) CubeSats
Christopher S. Moore, Amir Caspi, Thomas N. Woods +6
The Miniature X-ray Solar Spectrometer (MinXSS) CubeSat is the first solar science oriented CubeSat mission flown for the NASA Science Mission Directorate, with the main objective…
Center-to-Limb Variability of Hot Coronal EUV Emissions During Solar Flares
Edward Thiemann, Phillip Chamberlin, Francis Eparvier +1
It is generally accepted that densities of quiet sun and active region plasma are sufficiently low to justify the optically thin approximation, and it is commonly used in the analy…
New Solar Irradiance Measurements from the Miniature X-Ray Solar Spectrometer CubeSat
Thomas N. Woods, Amir Caspi, Phillip C. Chamberlin +9
The goal of the Miniature X-ray Solar Spectrometer (MinXSS) CubeSat is to explore the energy distribution of soft X-ray (SXR) emissions from the quiescent Sun, active regions, and…
Thermodynamic Spectrum of Solar Flares Based on SDO/EVE Observations: Techniques and Statistical Results
Yuming Wang, Zhenjun Zhou, Jie Zhang +4
SDO/EVE provides rich information of the thermodynamic processes of solar activities, particularly of solar flares. Here, we develop a method to construct thermodynamic spectrum (T…
The Anomalous Temporal Behaviour of Broadband Ly Emission During Solar Flares From SDO/EVE
Ryan O. Milligan, Phillip C. Chamberlin
Despite being the most prominent emission line in the solar spectrum, there has been a notable lack of studies devoted to variations in Ly emission during solar flares in recent…
The Radiated Energy Budget of Chromospheric Plasma in a Major Solar Flare Deduced From Multi-Wavelength Observations
Ryan O. Milligan, Graham S. Kerr, Brian R. Dennis +7
This paper presents measurements of the energy radiated by the lower solar atmosphere, at optical, UV, and EUV wavelengths, during an X-class solar flare (SOL2011-02-15T01:56) in r…
Decay Phase Cooling and Inferred Heating of M- and X-class Solar Flares
Daniel F. Ryan, Phillip C. Chamberlin, Ryan O. Milligan +1
In this paper, the cooling of 72 M- and X-class flares is examined using GOES/XRS and SDO/EVE. The observed cooling rates are quantified and the observed total cooling times are co…
Global Energetics of Thirty-Eight Large Solar Eruptive Events
A. G. Emslie, B. R. Dennis, A. Y. Shih +6
We have evaluated the energetics of 38 solar eruptive events observed by a variety of spacecraft instruments between February 2002 and December 2006, as accurately as the observati…
Observations of Enhanced EUV Continua During An X-Class Solar Flare Using SDO/EVE
Ryan O. Milligan, Phillip C. Chamberlin, Hugh S. Hudson +5
Observations of extreme-ultraviolet (EUV) emission from an X-class solar flare that occurred on 2011 February 15 at 01:44 UT are presented, obtained using the EUV Variability Exper…