Publications

Hubbard-James, H.-S., Carrazco Gaxiola, S., Henry, T.J., Paredes, L.A., Nisak, A.H., Lesley, D.X., Jao, W.-C., Arbogast, A.

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

The Astronomical Journal, 171, 175 (2026) DOI ADS

Hubbard-James, H.-S., Lesley, D.X., Henry, T.J., et al.

The Solar Neighborhood L: Spectroscopic Discovery of K Dwarfs Younger than 1 Gyr and New Binaries within 30 Parsecs

The Astronomical Journal, 164, 174 (2022) ADS

Méndez, A., Ortiz Ceballos, K.N., Zuluaga, J.I., ... Hubbard-James, H.-S., Le, M., et al.

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

The Astrophysical Journal, Submitted (2025) ADS

Frail, D., Hyman, S., Silverstein, M., ... Hubbard-James, H.-S., Byam, J., et al.

A Radio Loud Quiescent K Dwarf

The Astrophysical Journal, 989, 186 (2025) ADS

Jao, W.-C., Henry, T.J., White, R.J., ... Hubbard-James, H.-S., et al.

Mind the Gap. I. Hα Activity of M Dwarfs Near the Partially/Fully Convective Boundary and a New Hα Emission Deficiency Zone on the Main Sequence

The Astronomical Journal, 166, 63 (2023)

Lester, K.V., ... Hubbard-James, H.-S., et al.

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

The Astronomical Journal, Accepted (2026)

Lester, K.V., Schaefer, G.H., ... Hubbard-James, H.-S., et al.

Visual Orbits of Spectroscopic Binaries with the CHARA Array. IV. HD 61859, HD 89822, HD 109510, and HD 191692

The Astronomical Journal, 164, 228 (2022)

Nisak, A.H., White, R.J., Yep, A., ... James, H.-S., et al.

Mapping out the Stellar Populations of IC 2602 and IC 2391

The Astronomical Journal, 163, 278 (2022)

Paredes, L.A., Henry, T.J., Quinn, S.N., Gies, D.R., Hinojosa-Goñi, R., James, H.-S., Jao, W.-C., et al.

The Solar Neighborhood XLVIII: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph's Radial Velocity Performance

The Astronomical Journal, 162, 176 (2021)

Hubbard-James, H.-S.

Finding the K Dwarf Advantage

Invited talk, RECONSaganza, Georgia State University (August 2026)

Hubbard-James, H.-S., Henry, T.J., Carrazco Gaxiola, S., Youngblood, A., Gossett Roper, K., Jennings, M., Faulks, L.

The K Dwarf Advantage: Exploring Habitability Around the Sun's Cooler Cousins

Poster, U.S. Frontiers of Science, National Academy of Sciences (March 2026) — PDF

Hubbard-James, H., Gaxiola, S., Henry, T., Lesley, D.X., Paredes, L.A., Nisak, A.

Spectral Characterization of a Complete Equatorial Sample of 615 K Dwarfs

Poster, 2024 Astrobiology Science Conference (Providence, RI, 2024)

Hubbard-James, H., Carrazco Gaxiola, S., Henry, T., Lesley, D.X., Paredes, L.A., Nisak, A.

Spectral Characterization of a Complete Equatorial Sample of 615 K Dwarfs

Poster, 32nd General Assembly of the International Astronomical Union (Cape Town, South Africa, 2024)

Hubbard-James, H., Carrazco Gaxiola, S., Henry, T., Lesley, D.X., Paredes, L.A., Nisak, A.

Spectral Characterization of a Complete Equatorial Sample of 615 K Dwarfs

Oral presentation, 2024 Astrobiology Science Conference (Providence, RI, 2024)

Hubbard-James, H.

Spectral Characterization of a Complete Equatorial Sample of 615 K Dwarfs within 33 Parsecs — Active Stars, Calm Stars, and the Best Places for Habitable Worlds

Oral presentation, American Astronomical Society 242nd Meeting (2023)

Hubbard-James, H., Lesley, D.X., Henry, T.J., Paredes, L.A., Nisak, A.

Spectroscopic Identification of Young and Active K Dwarfs Within 25 Parsecs

Poster, American Astronomical Society 240th Meeting (2022) — Chambliss Astronomy Achievement Award

Hubbard-James, H., Lesley, D.X., Henry, T.J., Paredes, L.A., Nisak, A.

Spectroscopic Identification of Young and Active K Dwarfs Within 25 Parsecs

Oral presentation, 2022 Astrobiology Science Conference (2022)

Hubbard-James, H., Lesley, D.X., Henry, T.J.

Spectroscopic Identification of Five K Dwarfs Younger than 1 GYR Within 30 parsecs

Oral presentation, National Society of Black Physicists Conference (2021)