Articles by R. O. Parke Loyd

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R. O. Parke Loyd

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The Mega-MUSCLES Treasury Survey: X-ray to infrared Spectral Energy Distributions of a representative sample of M dwarfs

11 November 2024 by David Wilson and others

Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics

Using Lyman-α transits to constrain models of atmospheric escape

30 October 2024 by Ethan Schreyer and others

Earth and Planetary Astrophysics

Optically Quiet, But FUV Loud: Results from comparing the far-ultraviolet predictions of flare models with TESS and HST

21 June 2024 by James A. G. Jackman and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

Flares, Rotation, Activity Cycles and a Magnetic Star-Planet Interaction Hypothesis for the Far Ultraviolet Emission of GJ 436

24 February 2024 by R. O. Parke Loyd and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

A Dragon's Flame of Many Colours: Multi-wavelength Observations of Flares from the Active M Binary CR Draconis

21 February 2024 by James A. G. Jackman and others

Solar and Stellar Astrophysics

Coronal X-Ray Emission from Nearby, Low-Mass, Exoplanet Host Stars Observed by the MUSCLES and Mega-MUSCLES HST Treasury Survey Projects

22 March 2023 by Alexander Brown and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The fundamentals of Lyman-alpha exoplanet transits

18 November 2022 by James Owen and others

Earth and Planetary Astrophysics

The Star-Planet Activity Research CubeSat (SPARCS): Determining Inputs to Planetary Habitability

10 November 2022 by David Ardila and others

Instrumentation and Methods for Astrophysics, Solar and Stellar Astrophysics

A Pilot Survey of an M Dwarf Flare Star with Swift's UV Grism

3 October 2022 by Shashank Chavali and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The Mouse that Squeaked: A small flare from Proxima Cen observed in the millimeter, optical, and soft X-ray with Chandra and ALMA

12 September 2022 by Ward Howard and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The UV-SCOPE Mission: Ultraviolet Spectroscopic Characterization Of Planets and their Environments

19 August 2022 by David Ardila and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Constraining the Physical Properties of Stellar Coronal Mass Ejections with Coronal Dimming: Application to Far Ultraviolet Data of ε Eridani

13 July 2022 by R. O. Parke Loyd and others

Solar and Stellar Astrophysics

Accurate Modeling of Lyman-alpha Profiles and their Impact on Photolysis of Terrestrial Planet Atmospheres

10 June 2022 by Sarah Peacock and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The impact of time-dependent stellar activity on exoplanet atmospheres

22 April 2022 by Amy Louca and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

HAZMAT. VIII. A Spectroscopic Analysis of the Ultraviolet Evolution of K Stars: Additional Evidence for K Dwarf Rotational Stalling in the First Gigayear

29 March 2022 by Tyler Richey-Yowell and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

Onboard Dynamic Image Exposure Control for the Star-Planet Activity Research CubeSat (SPARCS)

19 November 2021 by Tahina Ramiaramanantsoa and others at

Arizona State University

Instrumentation and Methods for Astrophysics, High Energy Astrophysical Phenomena

Time-Resolved Photometry of the High-Energy Radiation of M Dwarfs with the Star-Planet Activity Research CubeSat (SPARCS)

3 November 2021 by Tahina Ramiaramanantsoa and others at

Arizona State University

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Discovery of an Extremely Short Duration Flare from Proxima Centauri Using Millimeter through FUV Observations

19 April 2021 by Meredith Macgregor and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The Mega-MUSCLES Spectral Energy Distribution Of TRAPPIST-1

22 February 2021 by David Wilson and others

Solar and Stellar Astrophysics

Reconstructing the Extreme Ultraviolet Emission of Cool Dwarfs Using Differential Emission Measure Polynomials

16 February 2021 by Girish Duvvuri and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

Stellar flares from blended and neighbouring stars in Kepler short cadence observations

18 January 2021 by James A. G. Jackman and others

Solar and Stellar Astrophysics

HAZMAT. VII. The Evolution of Ultraviolet Emission with Age and Rotation for Early M Dwarf Stars

25 November 2020 by R. O. Parke Loyd and others

Solar and Stellar Astrophysics

A High-Cadence UV-Optical Telescope Suite On The Lunar South Pole

30 September 2020 by Scott Fleming and others

Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics

Estimating the Ultraviolet Emission of M dwarfs with Exoplanets from Ca II and Hα

16 September 2020 by Katherine Melbourne and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

The High-Energy Radiation Environment Around a 10 Gyr M Dwarf: Habitable at Last?

2 September 2020 by Kevin France and others

Earth and Planetary Astrophysics, Solar and Stellar Astrophysics

Proxima Centauri -- the nearest planet host observed simultaneously with AstroSat, Chandra and HST

17 August 2020 by Sairam Lalitha and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

HAZMAT VI: The Evolution of Extreme Ultraviolet Radiation Emitted from Early M Star

4 May 2020 by Sarah Peacock and others

Solar and Stellar Astrophysics, Earth and Planetary Astrophysics

A Hot Ultraviolet Flare on the M Dwarf Star GJ 674

24 January 2019 by C. Froning and others

Solar and Stellar Astrophysics

HAZMAT. IV. Flares and Superflares on Young M Stars in the Far Ultraviolet

22 October 2018 by R. O. Parke Loyd and others

Solar and Stellar Astrophysics

The MUSCLES Treasury Survey. V. FUV Flares on Active and Inactive M Dwarfs

25 September 2018 by R. O. Parke Loyd and others

Solar and Stellar Astrophysics

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Solar and Stellar Astrophysics Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena Astrophysics of Galaxies