activity
20222026
most citedMind 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

14 citations · 23 across the 6 of their papers we have counts for

collaborators

7 papers

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.SR2026

The Solar Neighborhood LV: Spectral Characterization of an Equatorial Sample of 580 K Dwarfs

Hodari-Sadiki Hubbard-James, Sebastian Carrazco-Gaxiola, Todd J. Henry +5

We present a spectroscopic characterization of 580 K dwarfs within 33 pc, observed with the CHIRON echelle spectrograph (R=80,000) on the SMARTS 1.5m telescope. This volume-limited…

astro-ph.HE2025

Arecibo Wow! II: Revised Properties of the Wow! Signal from Archival Ohio SETI Data

Abel Méndez, Kevin N. Ortiz Ceballos, Jorge I. Zuluaga +8

The Wow! Signal, detected in 1977 by the Ohio State University SETI project, remains one of the most intriguing unexplained radio transients. The most recent significant revision o…

astro-ph.SR2025

A Radio Flaring, Chromospherically-Inactive K Dwarf

Dale A. Frail, Scott D. Hyman, Michele L. Silverstein +10

We report on an unusual radio source J180526-292953, initially identified as a steep spectrum, polarized point source toward the Galactic bulge and found to coincide with the nearb…

astro-ph.SR2023★ 14 cited

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…

astro-ph.SR2022★ 3 cited

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 =…