Sarah Gallagher

Professor

Western University

Canada

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Research Interests

Astrophysics

100%

Astronomy

80%

Multiwavelength Astronomy

100%

Quasar Studies

60%

Accretion Physics

50%

Extragalactic Astronomy

40%

Agn Studies

40%

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Articles16

Exploring the Spectral Energy Distributions of Luminous Broad Absorption Line Quasars at High Redshift

Article Link

Year:

2025

SQ-A: A Collision-triggered Starburst in the Intragroup Medium of Stephan’s Quintet

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Year:

2025

Transient LoBALs at High Velocities: A Case of Extreme Broad Absorption Line Variability in J115636.82+085628.9*

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Year:

2025

Gemini Near Infrared Spectrograph−Distant Quasar Survey: Rest-frame Ultraviolet−Optical Spectral Properties of Broad Absorption Line Quasars

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Year:

2024

The Physical Properties of Low-redshift FeLoBAL Quasars. IV. Optical–Near-IR Spectral Energy Distributions and Near-IR Variability Properties

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Year:

2024

Investigating the Origin of the Absorption-line Variability in the Narrow-line Seyfert 1 Galaxy WPVS 007

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Year:

2023

Gemini Near Infrared Spectrograph–Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts

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Year:

2023

Revisiting Emission-line Measurement Methods for Narrow-line Active Galactic Nuclei

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Year:

2023

GALFIT-ing AGN Host Galaxies in COSMOS: HST versus Subaru

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Year:

2023

Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XIII. Ultraviolet Time Lag of Hβ Emission in Mrk 142

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Year:

2023

The Physical Properties of Low-redshift FeLoBAL Quasars. I. Spectral-synthesis Analysis of the Broad Absorption-line (BAL) Outflows Using SimBAL

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Year:

2022

NuSTAR Observations of Intrinsically X-Ray Weak Quasar Candidates: An Obscuration-only Scenario

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Year:

2022

The Physical Properties of Low-redshift FeLoBAL Quasars. III. The Location and Geometry of the Outflows

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Year:

2022

The Physical Properties of Low-redshift FeLoBAL Quasars. II. The Rest-frame Optical Emission Line Properties

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Year:

2022

Exploring Changes in Quasar Spectral Energy Distributions across C iv Parameter Space

Article Link

Year:

2022

Extremely Broad Lyα Line Emission from the Molecular Intragroup Medium in Stephan’s Quintet: Evidence for a Turbulent Cascade in a Highly Clumpy Multiphase Medium?

Article Link

Year:

2022

Collaborators11

Paul Hewett

Professor of Observational Cosmology and Astrophysics

University of Cambridge

UNITED KINGDOM

Ohad Shemmer

University of North Texas

UNITED STATES

Richard Green

University of Arizona

UNITED STATES

Edward Cackett

Associate Professor

Wayne State University

UNITED STATES

Dirk Grupe

Associate Professor and Chair

Northern Kentucky University

UNITED STATES

Donald Terndrup

Associate Professor

Ohio State University

UNITED STATES

Meg Urry

Israel Munson Professor of Physics and Astronomy

Yale University

UNITED STATES

Michael Brotherton

Professor

University of Wyoming

UNITED STATES

Jessie Runnoe

Adjunct Professor of Physics

Fisk University

UNITED STATES

P Barmby

Western University

CANADA

Min Yun

University of Massachusetts Amherst

UNITED STATES

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