activity
20132026
most citedStellar Diameters and Temperatures III. Main Sequence A, F, G, & K Stars: Additional high-precision measurements and empirical relations

252 citations · 624 across the 17 of their papers we have counts for

collaborators

17 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

Pre-nova Observations of T CrB: A view from the CHARA Array

Ryan Norris, Narsireddy Anugu, Thomas Gaudin +38

T CrB is a symbiotic recurrent nova consisting of a red giant and white dwarf with recent eruptions in 1866 and 1946 and an anticipated eruption in the mid 2020s. We report CHARA A…

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.SR2024

CHARA Near-Infrared Imaging of the Yellow Hypergiant Star Cassiopeiae: Convection Cells and Circumstellar Envelope

Narsireddy Anugu, Fabien Baron, John D. Monnier +18

Massive evolved stars such as red supergiants and hypergiants are potential progenitors of Type II supernovae, and they are known for ejecting substantial amounts of matter, up to…

astro-ph.SR2021★ 14 cited

Long Term Evolution of Surface Features on the Red Supergiant AZ Cyg

Ryan P. Norris, Fabien R. Baron, John D. Monnier +23

We present H-band interferometric observations of the red supergiant (RSG) AZ Cyg made with the Michigan Infra-Red Combiner (MIRC) at the six-telescope Center for High Angular Reso…

astro-ph.IM2020★ 9 cited

CHARA Array adaptive optics: complex operational software and performance

Narsireddy Anugu, Theo ten Brummelaar, Nils H. Turner +18

The CHARA Array is the longest baseline optical interferometer in the world. Operated with natural seeing, it has delivered landmark sub-milliarcsecond results in the areas of stel…