selected publications

• conference proceeding

  • EUV Variability Experiment (EVE) Multiple EUV Grating Spectrographs (MEGS) radiometric calibrations and results.  Proceedings of SPIE. 2007
  • SDO EVE CCD and thin foil filter characterization and selection.  Proceedings of SPIE. 2007
  • SDO EVE ESP radiometric calibration and results.  Proceedings of SPIE. 2007
  • Rocket Extreme Ultraviolet Grating Spectrometer, EGS.: calibrations and results of the solar irradiance on February 8, 2002.  Optical Engineering. 2004
  • Rocket extreme ultraviolet grating spectrometer (EGS): Calibrations and results of the solar irradiance on February 8, 2002.  Proceedings of SPIE. 31-42. 2004

• journal article

  • Atmospheric Escape From Earth and Mars: Response to Solar and Solar Wind Drivers of Oxygen Escape.  Geophysical Research Letters. 2024
  • EMM EMUS Observations of Hot Oxygen Corona at Mars: Radial Distribution and Temporal Variability.  Journal of Geophysical Research: Space Physics. 2024
  • Improving the Spectral Resolution and Wavelength Scale of SDO/EVE MEGS-A Flare Observations..  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 151. 2024
  • The Solar EruptioN Integral Field Spectrograph..  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 120. 2024
  • Characteristics of Lunar Surface Electrons Inferred From ARTEMIS Observations: 1. Backscattered Electrons.  Journal of Geophysical Research: Planets. 2023
  • First Results for Solar Soft X-Ray Irradiance Measurements from the Third-generation Miniature X-Ray Solar Spectrometer.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2023
  • Observational Analysis of Lya Emission in Equivalent-magnitude Solar Flares.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2023
  • Magnetic Energy Powers the Corona: How We Can Understand its 3D Storage & Release 2023
  • Solar Dynamics Constellation 2023
  • Uninterrupted Tracking of Coronal Mass Ejections 2023
  • Defining the Middle Corona.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 2023
  • Spicules in IRIS Mg ii Observations: Automated Identification.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2023
  • Morphology of Extreme and Far Ultraviolet Martian Airglow Emissions Observed by the EMUS Instrument on Board the Emirates Mars Mission.  Geophysical Research Letters. 2022
  • Simultaneous High Dynamic Range Algorithm, Testing, and Instrument Simulation.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2022
  • Lunar Photoemission Yields Inferred From ARTEMIS Measurements.  Journal of Geophysical Research: Planets. 2021
  • SunCET: The Sun Coronal Ejection Tracker Concept.  Journal of Space Weather and Space Climate. 2021
  • A New Model for Ionospheric Total Electron Content: The Impact of Solar Flux Proxies and Indices.  Journal of Geophysical Research: Space Physics. 2021
  • On the Altitude Patterns of Photo-Chemical-Equilibrium in the Martian Ionosphere: A Special Role for Electron Temperature.  Journal of Geophysical Research: Space Physics. 2021
  • The Flare Irradiance Spectral Model-Version 2 (FISM2).  Space Weather. 2020
  • The Flare Irradiance Spectral Model - Version 2 (FISM2) 2020
  • The Flare Irradiance Spectral Model - Version 2 (FISM2) 2020
  • Lyman-alpha Variability During Solar Flares Over Solar Cycle 24 Using GOES-15/EUVS-E.  Space Weather. 2020
  • MinXSS-2 CubeSat mission overview: Improvements from the successful MinXSS-1 mission.  Advances in Space Research. 3-9. 2020
  • Responses of the Thermosphere and Ionosphere System to Concurrent Solar Flares and Geomagnetic Storms.  Journal of Geophysical Research: Space Physics. 2020
  • The GOES-R EUVS model for EUV irradiance variability.  Journal of Space Weather and Space Climate. 2019
  • Mars Upper Atmospheric Responses to the 10 September 2017 Solar Flare: A Global, Time-Dependent Simulation.  Geophysical Research Letters. 9334-9343. 2019
  • Solar Flare and Geomagnetic Storm Effects on the Thermosphere and Ionosphere During 6-11 September 2017.  Journal of Geophysical Research: Space Physics. 2298-2311. 2019
  • Solar Ultraviolet Irradiance Observations of the Solar Flares During the intense September 2017 Storm Period.  Space Weather. 1470-1487. 2018
  • The Mars Topside Ionosphere Response to the X8.2 Solar Flare of 10 September 2017.  Geophysical Research Letters. 8005-8013. 2018
  • Martian Thermospheric Response to an X8.2 Solar Flare on 10 September 2017 as Seen by MAVEN/IUVS.  Geophysical Research Letters. 7312-7319. 2018
  • Flares at Earth and Mars: An Ionospheric Escape Mechanism?.  Space Weather. 1042-1056. 2018
  • Center-to-Limb Variability of Hot Coronal EUV Emissions During Solar Flares.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 2018
  • The Instruments and Capabilities of the Miniature X-Ray Solar Spectrometer (MinXSS) CubeSats.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 2018
  • Sources of Ionospheric Variability at Mars.  Journal of Geophysical Research: Space Physics. 9670-9684. 2017
  • Photoemission and electrostatic potentials on the dayside lunar surface in the terrestrial magnetotail lobes.  Geophysical Research Letters. 5276-5282. 2017
  • MAVEN observations of the solar cycle 24 space weather conditions at Mars.  Journal of Geophysical Research: Space Physics. 2768-2794. 2017
  • The MAVEN EUVM model of solar spectral irradiance variability at Mars: Algorithms and results.  Journal of Geophysical Research: Space Physics. 2748-2767. 2017
  • New Solar Irradiance Measurements from the Miniature X-Ray Solar Spectrometer Cubesat.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2017
  • An integral field spectrograph utilizing mirrorlet arrays.  Journal of Geophysical Research: Space Physics. 8250-8259. 2016
  • Measuring Solar Doppler Velocities in the He II 30.38 nm Emission Using the EUV Variability Experiment (EVE).  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 1665-1679. 2016
  • Anomalous temporal behaviour of broadband Ly alpha observations during solar flares from SDO/EVE.  Astronomy and Astrophysics: a European journal. 2016
  • Miniature X-Ray Solar Spectrometer: A Science-Oriented, University 3U CubeSat.  Journal of Spacecraft and Rockets. 328-339. 2016
  • THERMODYNAMIC SPECTRUM OF SOLAR FLARES BASED ON SDO/EVE OBSERVATIONS: TECHNIQUES AND FIRST RESULTS.  Astrophysical Journal Supplement Series. 2016
  • Comparison of different solar irradiance models for the superthermal electron transport model for Mars.  Planetary and Space Science. 62-68. 2015
  • The Mars Atmosphere and Volatile Evolution (MAVEN) Mission.  Space Science Reviews. 3-48. 2015
  • The Solar Extreme Ultraviolet Monitor for MAVEN.  Space Science Reviews. 293-301. 2015
  • MAVEN IUVS observation of the hot oxygen corona at Mars.  Geophysical Research Letters. 9009-9014. 2015
  • Retrieval of CO₂ and N₂ in the Martian thermosphere using dayglow observations by IUVS on MAVEN.  Geophysical Research Letters. 9040-9049. 2015
  • Study of the Martian cold oxygen corona from the OI 130.4nm by IUVS/MAVEN.  Geophysical Research Letters. 9031-9039. 2015
  • Three-dimensional structure in the Mars H corona revealed by IUVS on MAVEN.  Geophysical Research Letters. 9001-9008. 2015
  • Early MAVEN Deep Dip campaign reveals thermosphere and ionosphere variability.  Science. 2015
  • MAVEN observations of the response of Mars to an interplanetary coronal mass ejection.  Science. 2015
  • THE RADIATED ENERGY BUDGET OF CHROMOSPHERIC PLASMA IN A MAJOR SOLAR FLARE DEDUCED FROM MULTI-WAVELENGTH OBSERVATIONS.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2014
  • Wavelength dependence of solar irradiance enhancement during X-class flares and its influence on the upper atmosphere.  Journal of Atmospheric and Solar: Terrestrial Physics. 87-94. 2014
  • MEASUREMENTS AND MODELING OF TOTAL SOLAR IRRADIANCE IN X-CLASS SOLAR FLARES.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2014
  • DECAY-PHASE COOLING AND INFERRED HEATING OF M- AND X-CLASS SOLAR FLARES.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2013
  • Correlations between variations in solar EUV and soft X-ray irradiance and photoelectron energy spectra observed on Mars and Earth.  Journal of Geophysical Research: Space Physics. 7338-7347. 2013
  • On-Orbit Degradation of Solar Instruments.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 389-434. 2013
  • GLOBAL ENERGETICS OF THIRTY-EIGHT LARGE SOLAR ERUPTIVE EVENTS.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2012
  • Effect of a solar flare on a traveling atmospheric disturbance.  Journal of Geophysical Research: Space Physics. 2012
  • Thermal Evolution and Radiative Output of Solar Flares Observed by the EUV Variability Experiment (EVE).  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 23-42. 2012
  • Solar EUV and XUV energy input to thermosphere on solar rotation time scales derived from photoelectron observations.  Journal of Geophysical Research: Space Physics. 2012
  • Numerical simulations of the ionosphere of Mars during a solar flare.  Journal of Geophysical Research: Space Physics. 2012
  • OBSERVATIONS OF ENHANCED EXTREME ULTRAVIOLET CONTINUA DURING AN X-CLASS SOLAR FLARE USING SDO/EVE.  Letters of the Astrophysical Journal. 2012
  • Solar flare impacts on ionospheric electrodyamics.  Geophysical Research Letters. 2012
  • OBSERVATIONS OF A TWO-STAGE SOLAR ERUPTIVE EVENT (SEE): EVIDENCE FOR SECONDARY HEATING.  Letters of the Astrophysical Journal. 2012
  • Extreme Ultraviolet Variability Experiment (EVE) Multiple EUV Grating Spectrographs (MEGS): Radiometric Calibrations and Results.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 145-178. 2012
  • Extreme Ultraviolet Variability Experiment (EVE) on the Solar Dynamics Observatory (SDO): Overview of Science Objectives, Instrument Design, Data Products, and Model Developments.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 115-143. 2012
  • The Solar Dynamics Observatory (SDO).  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 3-15. 2012
  • Variability of thermosphere and ionosphere responses to solar flares.  Journal of Geophysical Research: Space Physics. 2011
  • NEW SOLAR EXTREME-ULTRAVIOLET IRRADIANCE OBSERVATIONS DURING FLARES.  The Astrophysical Journal: an international review of astronomy and astronomical physics. 2011
  • The EVE Doppler Sensitivity and Flare Observations.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 69-80. 2011
  • Flare location on the solar disk: Modeling the thermosphere and ionosphere response.  Journal of Geophysical Research: Space Physics. 2010
  • Four Martian years of nightside upper thermospheric mass densities derived from electron reflectometry: Method extension and comparison with GCM simulations.  Journal of Geophysical Research: Planets. 2010
  • The EUV spectrum of the Sun: long-term variations in the SOHO CDS NIS spectral responsivities.  Astronomy and Astrophysics: a European journal. 2010
  • Photoelectrons as a tool to evaluate spectral variations in solar EUV irradiance over solar cycle timescales.  Journal of Geophysical Research: Space Physics. 2009
  • Solar cycle minimum measurements of the solar extreme ultraviolet spectral irradiance on 14 April 2008.  Geophysical Research Letters. 2009
  • Comparison of solar soft X-ray irradiance from broadband photometers to a high spectral resolution rocket observation.  Advances in Space Research. 349-354. 2009
  • Solar Irradiance Reference Spectra (SIRS) for the 2008 Whole Heliosphere Interval (WHI).  Geophysical Research Letters. 2009
  • Variability of the lunar photoelectron sheath and dust mobility due to solar activity.  Journal of Geophysical Research: Space Physics. 2008
  • New flare model using recent measurements of the solar ultraviolet irradiance.  Advances in Space Research. 912-916. 2008
  • Photoelectron flux variations observed from the FAST satellite.  Advances in Space Research. 947-956. 2008
  • XUV Photometer System (XPS): Improved solar irradiance algorithm using CHIANTI spectral models.  Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 235-267. 2008
  • Temporal and spectral variations of the photoelectron flux and solar irradiance during an X class solar flare.  Geophysical Research Letters. 2008
  • Flare Irradiance Spectral Model (FISM): Flare component algorithms and results.  Space Weather. 2008
  • Flare irradiance spectral model (FISM): Daily component algorithms and results.  Space Weather. 2007
  • Contributions of the solar ultraviolet irradiance to the total solar irradiance during large flares.  Journal of Geophysical Research: Space Physics. 2006
  • Solar EUV Experiment (SEE): Mission overview and first results.  Journal of Geophysical Research: Space Physics. 2005