selected publications
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chapter
- Spectrally Resolved X-Ray and Extreme Ultraviolet Irradiance Variations During Solar Flares. Geophysical Monograph. 243-254. 2017
- Global-Scale Observations of the Limb and Disk (GOLD): New Observing Capabilities for the Ionosphere-Thermosphere. Geophysical Monograph. 319-326. 2008
- Solar extreme ultraviolet and x-ray irradiance variations 2004
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conference proceeding
- Rosetta photoelectron emission and solar ultraviolet flux at comet 67P. Monthly Notices of the Royal Astronomical Society. S626-S635. 2016
- Space Weather Storm Responses at Mars: Lessons from A Weakly Magnetized Terrestrial Planet. Proceedings of the International Astronomical Union. 211-217. 2016
- Solar extreme ultraviolet (EUV) flare observations and findings from the Solar Dynamics Observatory (SDO) EUV Variability Experiment (EVE). Proceedings of the International Astronomical Union. 27-40. 2015
- 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
- SDO-EVE EUV spectrograph optical design and performance - art. no. 66890M. Proceedings of SPIE. M6890-M6890. 2007
- Comparison of TIMED satellite drag with solar EUV experiment (SEE) measurements. Journal of Spacecraft and Rockets. 1204-1209. 2006
- In-flight calibration and performance of the solar extreme ultraviolet experiment (SEE) aboard the TIMED satellite. Proceedings of SPIE. 36-47. 2004
- The EUV variability experiment (EVE) aboard the NASA solar dynamics observatory (SDO). Proceedings of SPIE. 48-55. 2004
- 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
- SDO-EVE Multiple EUV Grating Spectrograph (MEGS) optical design. Proceedings of SPIE. 182-194. 2004
- Observations of the solar soft X-ray irradiance by the student nitric oxide explorer. Advances in Space Research. 209-218. 2004
- Solar ultraviolet variability during the TIMED mission. Advances in Space Research. 219-224. 2004
- The TIGER (thermospheric-ionospheric geospheric research) program: Introduction. Advances in Space Research. 194-198. 2004
- Report of the ISCS working group 1, panel 2. Esa Sp. 231-233. 2003
- Solar EUV spectral irradiance: Measurements and variability. Esa Sp. 209-216. 2003
- TIMED solar EUV experiment: pre-flight calibration results for the EUV grating spectrograph. Proceedings of SPIE. 91-100. 2001
- TIMED Solar EUV Experiment: pre-flight calibration results for the XUV Photometer System. Proceedings of SPIE. 255-264. 1999
- Microchannel plate performance and life-test results for the TIMED solar EUV experiment. Proceedings of SPIE. 603-614. 1998
- TIMED solar EUV experiment. Proceedings of SPIE. 180-191. 1998
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journal article
- Solar Atmospheric Oscillations as Measured by the GOES-R Series EXIS EUVS-C Instrument. Letters of the Astrophysical Journal. L18-L18. 2024
- Earth's ambipolar electrostatic field and its role in ion escape to space.. Nature. 1021-1025. 2024
- Variability of Atomic Hydrogen Brightness in the Martian Exosphere: Insights From the Emirates Ultraviolet Spectrometer on Board Emirates Mars Mission. Journal of Geophysical Research: Space Physics. 2024
- Solar and Solar Wind Energy Drivers for O+ and O2+ Ion Escape at Mars. Journal of Geophysical Research: Space Physics. 2024
- EMM EMUS Observations of Hot Oxygen Corona at Mars: Radial Distribution and Temporal Variability. Journal of Geophysical Research: Space Physics. 2024
- Martian Bow Shock Oscillations Driven by Solar Wind Variations: Simultaneous Observations From Tianwen-1 and MAVEN. Geophysical Research Letters. 2023
- Solar Dynamics Constellation 2023
- Uninterrupted Tracking of Coronal Mass Ejections 2023
- Solar and solar wind energy drivers for O+ and O2+ ion escape at Mars 2023
- Solar wind driven influences on the Martian oxygen corona: Constraints on atmospheric sputtering from a synthesis of MAVEN measurements during solar minimum. Icarus. 2023
- Transient Foreshock Structures Upstream of Mars: Implications of the Small Martian Bow Shock. Geophysical Research Letters. 2023
- The dependence of Martian ion escape on solar EUV irradiance as observed by MAVEN. Icarus. 2023
- The Hazard of UV-Induced Oxidation to Solar-Viewing Spacecraft Optics. Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 2023
- Energy Input of EUV, Solar Wind, and SEPs at Mars: MAVEN Observations During Solar Minimum. Journal of Geophysical Research: Space 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
- Retrieval of CO Relative Column Abundance in the Martian Thermosphere From FUV Disk Observations EMM EMUS. Geophysical Research Letters. 2022
- Combined Analysis of Hydrogen and Oxygen 102.6 nm Emission at Mars. Geophysical Research Letters. 2022
- First Synoptic Images of FUV Discrete Aurora and Discovery of Sinuous Aurora at Mars by EMM EMUS. Geophysical Research Letters. 2022
- Ionization Efficiency in the Dayside Ionosphere of Mars: Structure and Variability. Journal of Geophysical Research: Planets. 2021
- Evidence Against Carbonization of the Thin-Film Filters of the Extreme Ultraviolet Variability Experiment Onboard the Solar Dynamics Observatory. Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 2021
- SunCET: The Sun Coronal Ejection Tracker Concept. Journal of Space Weather and Space Climate. 2021
- Tidal Effects on the Longitudinal Structures of the Martian Thermosphere and Topside Ionosphere Observed by MAVEN. 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
- Solar Extreme Ultraviolet Irradiance Uncertainties for Planetary Studies. Journal of Geophysical Research: Space Physics. 2021
- The Flare Irradiance Spectral Model-Version 2 (FISM2). Space Weather. 2020
- Influence of the Solar Wind Dynamic Pressure on the Ion Precipitation: MAVEN Observations and Simulation Results. Journal of Geophysical Research: Space Physics. 2020
- The Flare Irradiance Spectral Model - Version 2 (FISM2) 2020
- The Flare Irradiance Spectral Model - Version 2 (FISM2) 2020
- Initial Observations by the GOLD Mission. Journal of Geophysical Research: Space Physics. 2020
- Solar EUV Irradiance Uncertainties for Planetary Studies 2020
- The GOES-R EUVS model for EUV irradiance variability. Journal of Space Weather and Space Climate. 2019
- Expansion and Shrinking of the Martian Topside Ionosphere. Journal of Geophysical Research: Space Physics. 9725-9738. 2019
- Low Electron Temperatures Observed at Mars by MAVEN on Dayside Crustal Magnetic Field Lines. Journal of Geophysical Research: Space Physics. 7629-7637. 2019
- Mars Upper Atmospheric Responses to the 10 September 2017 Solar Flare: A Global, Time-Dependent Simulation. Geophysical Research Letters. 9334-9343. 2019
- Influence of Extreme Ultraviolet Irradiance Variations on the Precipitating Ion Flux From MAVEN Observations. Geophysical Research Letters. 7761-7768. 2019
- Variability of Precipitating Ion Fluxes During the September 2017 Event at Mars. Journal of Geophysical Research: Space Physics. 420-432. 2019
- Loss of the Martian atmosphere to space: Present-day loss rates determined from MAVEN observations and integrated loss through time. Icarus. 146-157. 2018
- An Artificial Neural Network for Inferring Solar Wind Proxies at Mars. Geophysical Research Letters. 10855-10865. 2018
- Solar Ultraviolet Irradiance Observations of the Solar Flares During the intense September 2017 Storm Period. Space Weather. 1470-1487. 2018
- Mars Thermospheric Variability Revealed by MAVEN EUVM Solar Occultations: Structure at Aphelion and Perihelion and Response to EUV Forcing. Journal of Geophysical Research: Planets. 2248-2269. 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
- Observations and Modeling of the Mars Low-Altitude Ionospheric Response to the 10 September 2017 X-Class Solar Flare. Geophysical Research Letters. 7382-7390. 2018
- Mars H Escape Rates Derived From MAVEN/IUVS Lyman Alpha Brightness Measurements and Their Dependence on Model Assumptions. Journal of Geophysical Research: Planets. 2192-2210. 2018
- Effects of a Solar Flare on the Martian Hot O Corona and Photochemical Escape. Geophysical Research Letters. 6814-6822. 2018
- Decoupling Solar Variability and Instrument Trends Using the Multiple Same-Irradiance-Level (MuSIL) Analysis Technique. Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 2018
- Ionizing Electrons on the Martian Nightside: Structure and Variability. Journal of Geophysical Research: Space Physics. 4349-4363. 2018
- One-Hertz Waves at Mars: MAVEN Observations. Journal of Geophysical Research: Space Physics. 3460-3476. 2018
- Seasonal Variability of Neutral Escape from Mars as Derived From MAVEN Pickup Ion Observations. Journal of Geophysical Research: Planets. 1192-1202. 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
- A time dependent relation between EUV solar flare light-curves from lines with differing formation temperatures. Journal of Space Weather and Space Climate. 2017
- On the Origins of Mars' Exospheric Nonthermal Oxygen Component as Observed by MAVEN and Modeled by HELIOSARES. Journal of Geophysical Research: Planets. 2401-2428. 2017
- Vertical Thermospheric Density Profiles From EUV Solar Occultations Made by PROBA2 LYRA for Solar Cycle 24. Space Weather. 1649-1660. 2017
- The Effect of Solar Wind Variations on the Escape of Oxygen Ions From Mars Through Different Channels: MAVEN Observations. Journal of Geophysical Research: Space Physics. 11285-11301. 2017
- The Global-Scale Observations of the Limb and Disk (GOLD) Mission. Space Science Reviews. 383-408. 2017
- Sources of Ionospheric Variability at Mars. Journal of Geophysical Research: Space Physics. 9670-9684. 2017
- Effects of solar irradiance on the upper ionosphere and oxygen ion escape at Mars: MAVEN observations. Journal of Geophysical Research: Space Physics. 7142-7152. 2017
- Seasonal variability of Martian ion escape through the plume and tail from MAVEN observations. Journal of Geophysical Research: Space Physics. 4009-4022. 2017
- Statistical analysis of the reflection of incident O+ pickup ions at Mars: MAVEN observations. Journal of Geophysical Research: Space Physics. 4089-4101. 2017
- MAVEN measured oxygen and hydrogen pickup ions: Probing the Martian exosphere and neutral escape. Journal of Geophysical Research: Space Physics. 3689-3706. 2017
- MAVEN observations of the solar cycle 24 space weather conditions at Mars. Journal of Geophysical Research: Space Physics. 2768-2794. 2017
- Photochemical escape of oxygen from Mars: First results from MAVEN in situ data. Journal of Geophysical Research: Space Physics. 3815-3836. 2017
- The MAVEN EUVM model of solar spectral irradiance variability at Mars: Algorithms and results. Journal of Geophysical Research: Space Physics. 2748-2767. 2017
- MAVEN observations of dayside peak electron densities in the ionosphere of Mars. Journal of Geophysical Research: Space Physics. 891-906. 2017
- Structure, dynamics, and seasonal variability of the Mars-solar wind interaction: MAVEN Solar Wind Ion Analyzer in-flight performance and science results. Journal of Geophysical Research: Space Physics. 547-578. 2017
- The structure and variability of Mars dayside thermosphere from MAVEN NGIMS and IUVS measurements: Seasonal and solar activity trends in scale heights and temperatures. Journal of Geophysical Research: Space Physics. 1296-1313. 2017
- Proton cyclotron waves occurrence rate upstream from Mars observed by MAVEN: Associated variability of the Martian upper atmosphere. Journal of Geophysical Research: Space Physics. 11113-11128. 2016
- Photoelectrons and solar ionizing radiation at Mars: Predictions versus MAVEN observations. Journal of Geophysical Research: Space Physics. 8859-8870. 2016
- Electron energetics in the Martian dayside ionosphere: Model comparisons with MAVEN data. Journal of Geophysical Research: Space Physics. 7049-7066. 2016
- Soft X-ray irradiance measured by the Solar Aspect Monitor on the Solar Dynamic Observatory Extreme ultraviolet Variability Experiment. Journal of Geophysical Research: Space Physics. 3648-3664. 2016
- 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
- MAVEN insights into oxygen pickup ions at Mars. Geophysical Research Letters. 8870-8876. 2015
- Model insights into energetic photoelectrons measured at Mars by MAVEN. Geophysical Research Letters. 8894-8900. 2015
- Neutral density response to solar flares at Mars. Geophysical Research Letters. 8986-8992. 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
- The spatial distribution of planetary ion fluxes near Mars observed by MAVEN. Geophysical Research Letters. 9142-9148. 2015
- The structure and variability of Mars upper atmosphere as seen in MAVEN/IUVS dayglow observations. Geophysical Research Letters. 9023-9030. 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
- Where does the Thermospheric Ionospheric GEospheric Research (TIGER) Program go?. Advances in Space Research. 1547-1577. 2015
- 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
- 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
- NEW SOLAR EXTREME-ULTRAVIOLET IRRADIANCE OBSERVATIONS DURING FLARES. The Astrophysical Journal: an international review of astronomy and astronomical physics. 2011
- Solar extreme ultraviolet irradiance: Present, past, and future. Journal of Geophysical Research: Space Physics. 2011
- Early Observations by the GOES-13 Solar Extreme Ultraviolet Sensor (EUVS). Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 71-115. 2010
- Nitric oxide density enhancements due to solar flares. Advances in Space Research. 28-38. 2010
- Solar cycle minimum measurements of the solar extreme ultraviolet spectral irradiance on 14 April 2008. Geophysical Research Letters. 2009
- Solar Irradiance Reference Spectra (SIRS) for the 2008 Whole Heliosphere Interval (WHI). Geophysical Research Letters. 2009
- New flare model using recent measurements of the solar ultraviolet irradiance. Advances in Space Research. 912-916. 2008
- Cross-calibration of TIMED SEE and SOHO EIT irradiances. Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 207-219. 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
- Constraining and validating the Oct/Nov 2003 X-class EUV flare enhancements with observations of FUV dayglow and E-region electron densities. Journal of Geophysical Research: Space Physics. 2007
- Soft X-ray irradiances during solar flares observed by TIMED-SEE. Journal of Geophysical Research: Space Physics. 2006
- Solar EUV Experiment (SEE): Mission overview and first results. Journal of Geophysical Research: Space Physics. 2005
- Solar irradiance variability during the October 2003 solar storm period. Geophysical Research Letters. 2004
- Solar extreme ultraviolet variability of the X-class flare on 21 April 2002 and the terrestrial photoelectron response. Space Weather. 2003
- The extreme-ultraviolet solar irradiance spectrum observed with the coronal diagnostic spectrometer (CDS) on SOHO. The Astrophysical Journal: an international review of astronomy and astronomical physics. 959-970. 2000
- EUV97: Improvements to EUV irradiance modeling in the soft X-rays and FUV. Solar Physics: a journal for solar and solar-stellar research and the study of solar terrestrial physics. 147-159. 1998
- ON THE RELATIONSHIP BETWEEN THE SOLAR SOFT-X-RAY FLUX AND THERMOSPHERIC NITRIC-OXIDE - AN UPDATE WITH AN IMPROVED PHOTOELECTRON MODEL. Journal of Geophysical Research: Space Physics. 19687-19694. 1995
- THE MIDDLE ULTRAVIOLET DAYGLOW SPECTRUM. Journal of Geophysical Research: Space Physics. 9729-9739. 1995
- SOLAR MESOSPHERE EXPLORER SATELLITE MEASUREMENTS OF EL CHICHON STRATOSPHERIC AEROSOLS .1. CLOUD MORPHOLOGY. Journal of Geophysical Research: Atmospheres. 20525-20532. 1994
- SOLAR MESOSPHERE EXPLORER SATELLITE MEASUREMENTS OF EL CHICHON STRATOSPHERIC AEROSOLS .2. AEROSOL MASS AND SIZE PARAMETERS. Journal of Geophysical Research: Atmospheres. 20533-20544. 1994
- A METHOD OF MEASURING THE TEMPERATURE OF THE LOWER THERMOSPHERE. Journal of Geophysical Research: Space Physics. 9437-9441. 1993
- SELF ABSORPTION THEORY APPLIED TO ROCKET MEASUREMENTS OF THE NITRIC-OXIDE (1, 0) GAMMA-BAND IN THE DAYTIME THERMOSPHERE. Journal of Geophysical Research: Space Physics. 13723-13731. 1992