E. F. Guinan

Physics and Astronomy · Physical Sciences

44h-index8.0kcitations802works0.52yr avg
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Research Topics

Stellar, planetary, and galactic studies(507), Astronomy and Astrophysical Research(323), Astro and Planetary Science(244), Astrophysics and Star Formation Studies(147), Astronomical Observations and Instrumentation(138)

Publications802 total

The Evolving Light Variations and Periodicities of Betelgeuse Five Years after the Great Dimming
Research Notes of the AAS·2025Open Access
Antares: Variability of the Nearby M Supergiant and Core Collapse Type II Supernova Progenitor
Research Notes of the AAS·2025Open Access
Erratum: “Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids: Final Results” (2020, ApJ, 905, 81)
The Astrophysical Journal·2024Open Access
The Once-canceled Habitable-zone Super-Earth Gliese 581d Might Indeed Exist!
Research Notes of the AAS·2024· 2 citedOpen Access
Living with a Red Dwarf: The Rotation–Age Relationships of M Dwarfs
The Astrophysical Journal Letters·2023· 54 citedOpen Access
Living With a Red Dwarf: The Rotation-Age Relationship of M Dwarfs
arXiv (Cornell University)·2023Open Access
Super-Earth GJ 667Cc: Age and XUV Irradiances of the Temperate-zone Planet with Potential for Advanced Life
Research Notes of the AAS·2023· 1 citedOpen Access
Stars on the Verge: From Days to Decades, Studying the Photometric Variations of the Red Supergiant W Persei
Research Notes of the AAS·2022Open Access
X-Rays in Cepheids: Identifying Low-mass Companions of Intermediate-mass Stars*
The Astrophysical Journal·2022· 8 citedOpen Access
X-rays in Cepheids: Identifying Low-Mass Companions of Intermediate-Mass Stars
arXiv (Cornell University)·2022Open Access
X-Ray and Ultraviolet Observations of the Eclipsing Binary V471 Tauri with XMM-Newton: X-Ray-Cycles, Eclipse Timings and Further Evidence of a Substellar Tertiary Companion
Research Notes of the AAS·2022· 2 citedOpen Access
Stars on the Verge: Analyses of the Complex Light Variations of the Hyper-luminous Red Supergiant VY Canis Majoris: On the Nature of the Star’s “Great Dimming” Episodes
Research Notes of the AAS·2022· 1 citedOpen Access
SOFIA upGREAT/FIFI-LS Emission-line Observations of Betelgeuse during the Great Dimming of 2019/2020
The Astronomical Journal·2021· 3 citedOpen Access
Analysis of High-precision TESS Photometry of the Black Hole X-Ray Binary Cygnus X-1: Evidence of Intrinsic Variability of the Luminous Blue Supergiant Component
Research Notes of the AAS·2021Open Access
X-Rays in Cepheids: XMM-Newton Observations of η Aql*
The Astronomical Journal·2021· 4 citedOpen Access
Stars on the Verge: Investigating Semiregular Light Variations and Changing Multiperiods of the Luminous Red Supergiant μ Cephei from over 175 yr of Photometry
Research Notes of the AAS·2021· 1 citedOpen Access
Ultraviolet study of the active interacting binary star R Arae using archival IUE data
UNC Libraries·2021Open Access
Studying Semi-Regular Light Variations & Pulsation Periods of Betelgeuse from ~180 years of Photometry: Implications for Evolutionary Changes and for the 2020 Great Dimming
American Astronomical Society Meeting Abstracts·2021
Refined Orbital Period Decay Analysis Reinforces the Migration Theory for the Formation and Evolution of HD 189733 & Other Hot Jupiter Systems
American Astronomical Society Meeting Abstracts·2021
Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids: Final Results*†
The Astrophysical Journal·2020Open Access
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Frequent Co-authors

I. Ribas(17), S. Messina(6), L. E. DeWarf(5), M. Güdel(4), Franck Selsis(4), D. H. Bradstreet(4), E. L. Fitzpatrick(4), F. P. Maloney(4), G. M. Harper(4), Scott G. Engle(4), M. Audard(3), J. Morin(3), G. Anglada‐Escudé(3), B. Montesinos(3), M. Rodonò(3), Àlvaro Giménez(3), H. Lammer(2), S. J. Bauer(2), W. W. Weiß(2), H. K. Biernat(2)