activity
20212026
most citedInterferometric detections of sdO companions orbiting three classical Be stars

33 citations · 43 across the 15 of their papers we have counts for

collaborators

16 papers

astro-ph.SR2026

CHARA Array Observations of the Evolved Components in Symbiotic Star Systems

Thomas Martin Gaudin, Ryan Norris, Magdalena Otulakowska-Hypka +30

The nature of the mechanisms that drive mass transfer in symbiotic stars remains an area of active research in stellar astronomy. Constraining the role that both stellar winds and…

astro-ph.SR2026

Visual Orbits of Spectroscopic Binaries with the CHARA Array. V. HD 210763 and HD 221950

Kathryn V. Lester, Josephine Singleton, Alexandra M. Twomey +16

We present the visual orbits and dynamical masses of two longer period spectroscopic binary stars, HD 210763 and HD 221950, using long baseline interferometry with the CHARA Array…

astro-ph.IM2026

CHARA Array Delay Lines: Upgrades, Performance and Future Directions

Narsireddy Anugu, Nils H. Turner, Theo A. ten Brummelaar +12

Long baseline optical and infrared interferometric arrays achieve high angular resolution and enable detailed astrophysical measurements. Interferometers have enabled observations…

astro-ph.IM2026

Bridging stellar evolution and planet formation: from birth, to survivors of the fittest, to the second generation of planets

Akke Corporaal, Toon De Prins, Léa Planquart +10

Stars and planets form, live, and evolve in unison. Throughout the life of a star, dusty circumstellar discs and stellar outflows influence the further evolution of both the star(s…

astro-ph.HE2025★ 3 cited

Multiple outflows and delayed ejections revealed by early imaging of novae

Elias Aydi, John D. Monnier, Antoine Mérand +39

Novae are thermonuclear eruptions on accreting white dwarfs in interacting binaries. Although most of the accreted envelope is expelled, the mechanism -- impulsive ejection, multip…

astro-ph.EP2025

Surprise non-detection of Upsilon Andromedae b with MIRC-X and MYSTIC at the CHARA Array

Tyler Gardner, John D. Monnier, Stefan Kraus +11

Ground-based long baseline interferometry is a powerful tool for characterizing exoplanets which are too close to their host star to be imaged with single-dish telescopes. The CHAR…

astro-ph.IM2025

The CHARA Array Polarization Model and Prospects for Spectropolarimetry

Linling Shuai, John D. Monnier, Benjamin R. Setterholm +5

Polarimetric data provide key insights into infrared emission mechanisms in the inner disks of YSOs and the details of dust formation around AGB stars. While polarization measureme…

astro-ph.SR2025

The Small Separation A-Star Companion Population: Tentative Signatures of Enhanced Multiplicity with Primary Mass

Matthew De Furio, Tyler Gardner, John D. Monnier +6

We present updated results from our near-infrared long-baseline interferometry (LBI) survey to constrain the multiplicity properties of intermediate-mass A-type stars within 80 pc.…

astro-ph.SR2025

Orbital and Physical Properties of the Pleiades Binary 27 Tau (Atlas)

G. Torres, A. Tkachenko, K. Pavlovski +12

We report new spectroscopic and interferometric observations of the Pleiades binary star Atlas, which played an important role nearly three decades ago in settling the debate over…

astro-ph.SR2025

Precise Age For The Binary HD 21278 In The Young Alpha Persei Cluster

Christopher A. Danner, Eric L. Sandquist, Gail H. Schaefer +14

We present a study of the double-lined spectroscopic binary HD 21278 that contains one of the brightest main sequence stars in the young Persei open cluster. We analyzed new sp…

astro-ph.SR2025★ 4 cited

The Dynamic Inner Disk of a Planet Forming Star

Benjamin R. Setterholm, John D. Monnier, Fabien Baron +13

Planets are a natural byproduct of the stellar formation process, resulting from local aggregations of material within the disks surrounding young stars. Whereas signatures of gas-…

astro-ph.SR2025★ 3 cited

A Spectroscopic and Interferometric Study of W Serpentis Stars. I. Circumbinary Outflow in the Interacting Binary W Serpentis

Katherine Shepard, Douglas R. Gies, Gail H. Schaefer +6

W Serpentis is an eclipsing binary system and the prototype of the Serpentid class of variable stars. These are interacting binaries experiencing intense mass transfer and mass los…

astro-ph.SR2024

Visual Orbits of Wolf-Rayet Stars II: The Orbit of the Nitrogen-Rich WR Binary WR 138 measured with the CHARA Array

Amanda Holdsworth, Noel Richardson, Gail H. Schaefer +19

Classical Wolf-Rayet stars are descendants of massive OB-type stars that have lost their hydrogen-rich envelopes, and are in the final stages of stellar evolution, possibly explodi…

astro-ph.SR2024

Visual Orbits of Wolf-Rayet Stars I: The Orbit of the dust-producing Wolf-Rayet binary WR\,137 measured with the CHARA Array

Noel D. Richardson, Gail H. Schaefer, Jan J. Eldridge +19

Classical Wolf-Rayet stars are the descendants of massive OB stars that have lost their hydrogen envelopes and are burning helium in their cores prior to exploding as type Ib/c sup…

astro-ph.SR2023

The CHARA Array interferometric program on the multiplicity of classical Be stars: new detections and orbits of stripped subdwarf companions

Robert Klement, Thomas Rivinius, Douglas R. Gies +8

Rapid rotation and nonradial pulsations enable Be stars to build decretion disks, where the characteristic line emission forms. A major but unconstrained fraction of Be stars owe t…

astro-ph.SR2021★ 33 cited

Interferometric detections of sdO companions orbiting three classical Be stars

R. Klement, G. H. Schaefer, D. R. Gies +17

Classical Be stars are possible products of close binary evolution, in which the mass donor becomes a hot, stripped O or B-type subdwarf (sdO/sdB), and the mass gainer spins up and…