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A Seven-Day Multi-Wavelength Flare Campaign on AU Mic I: High-Time Resolution Light Curves and the Thermal Empirical Neupert Effect
Isaiah I. Tristan, Yuta Notsu, Adam F. Kowalski +13
We present light curves and flares from a seven day, multi-wavelength observational campaign of AU Mic, a young and active dM1e star with exoplanets and a debris disk. We report on…
Mind the Gap I: H Activity of M Dwarfs Near the Partially/Fully Convective Boundary and a New H Emission Deficiency Zone on the Main Sequence
Wei-Chun Jao, Todd J. Henry, Russel J. White +3
Since identifying the gap in the H-R Diagram (HRD) marking the transition between partially and fully convective interiors, a unique type of slowly pulsating M dwarf has been propo…
Estimating the Convective Turnover Time
Wei-Chun Jao, Andrew A Couperus, Eliot H. Vrijmoet +2
The introduction of the Rossby number (R), which incorporates the convective turnover time (), in 1984 was a pioneering idea for understanding the correlation between stella…
The Solar Neighborhood L: Spectroscopic Discovery of K Dwarfs Younger Than 1 Gyr and New Binaries within 30 pc
Hodari-Sadiki Hubbard-James, D. Xavier Lesley, Todd J. Henry +2
As part of a comprehensive effort to characterize the nearest stars, the CHIRON echelle spectrograph on the CTIO/SMARTS 1.5m telescope is being used to acquire high resolution (R =…
Visual Orbits of Spectroscopic Binaries with the CHARA Array. IV. HD 61859, HD 89822, HD 109510, and HD 191692
Kathryn V. Lester, Gail H. Schaefer, Francis C. Fekel +18
We present the visual orbits of four spectroscopic binary stars, HD 61859, HD 89822, HD 109510, and HD 191692, using long baseline interferometry with the CHARA Array. We also obta…
An Adaptive Optics Census of Companions to Northern Stars Within 25 pc with Robo-AO
Maissa Salama, Carl Ziegler, Christoph Baranec +8
In order to assess the multiplicity statistics of stars across spectral types and populations in a volume-limited sample, we censused nearby stars for companions with Robo-AO. We r…