activity
20242026
most citedNASA Exoplanet Exploration Program (ExEP) Mission Star List for the Habitable Worlds Observatory (2023)

15 citations · 32 across the 22 of their papers we have counts for

collaborators

24 papers

astro-ph.SR2026

PHAROS: Panchromatic spectral energy distributions of solar-like stars across evolutionary stages

Viktor Sumida, Raissa Estrela, Eric Mamajek +2

Panchromatic stellar spectral energy distributions (SEDs) provide the wavelength-dependent irradiation fields required for studies of exoplanet atmospheres, photochemistry, atmosph…

astro-ph.EP2026

Finding Habitable Exoplanets with Binary Relative Astrometry: Planet Detection and Characterization with the Microarcsecond Astrometric Retrieval Algorithm (MARA)

William Roberson, Eric L. Nielsen, Jessie L. Christiansen +8

Binary relative astrometry is a technique to search for rocky planets in the habitable zone of nearby binary stars using 1D relative astrometry at the microarcsecond level. This un…

astro-ph.IM2026

The Roman Coronagraph Community Participation Program: pre-launch reference star list and impact of reference star properties on post-processing performance

Justin Hom, Schuyler G. Wolff, Jessica Gersh-Range +51

The upcoming Roman Coronagraph will be the first high-contrast instrument in space capable of high-order wavefront sensing and control technologies, a critical technology demonstra…

astro-ph.EP2026

Assessing Planetary Stability and Long-Term Habitability in Nearby Stellar Binaries: 70 Oph, 36 Oph, Leo

Alyssa R. Jankowski, Juliette Becker, Catherine A. Clark +8

Binary stars are common and have the potential to host habitable planets, which may reside in more complex habitable zones as compared to planets orbiting single stars. In this wor…

astro-ph.IM2026

Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory

Courtney D. Dressing, Danica Adams, Evelyne Alecian +324

The Habitable Worlds Observatory (HWO) is a future NASA flagship mission concept identified by the Astro2020 Decadal Survey as the highest priority for large space missions. HWO sh…

astro-ph.EP2026

Searching for Habitable Exoplanets with Relative Astrometry (SHERA). I. The Case for Searching for Planets in Binary Star Systems

Jessie L. Christiansen, Eric E. Mamajek, Gautam Vasisht +14

Discovering Earth-like planets orbiting Sun-like stars was identified as a priority science goal of the Astronomy 2020 Decadal Survey. It is confounded by many factors, one of whic…

astro-ph.IM2026

A Critical UV Legacy: A Hubble Roadmap for HWO Science Readiness

Sarah Peacock, Aiden S. Zelakewicz, Lisa Kaltenegger +14

The Habitable Worlds Observatory (HWO) will provide the first opportunity to directly image and spectrally characterize terrestrial exoplanets in the habitable zones of nearby star…

astro-ph.SR2026

HWO Target Stars and Systems: Activity and Rotation Catalog (ARC) of Potential Target Stars for the Habitable Worlds Observatory

Tara Fetherolf, Arvind F. Gupta, Elisabeth R. Newton +7

A major goal of the Habitable Worlds Observatory (HWO) is to precisely characterize exoplanets and their atmospheres. However, magnetic activity from an exoplanet's host star can c…

astro-ph.IM2026

Masses of Potentially Habitable Planets Characterized by the Habitable Worlds Observatory

Kaz Gary, B. Scott Gaudi, Eduardo Bendek +5

Constraints on the masses of exoplanets directly imaged and characterized by the Habitable Worlds Observatory (HWO) are crucial for categorizing these planets and interpreting thei…

astro-ph.EP2026

A Century of Radial Velocity and Astrometric Monitoring of 70 Oph AB: New PFS Data and Constraints on Planetary Companions

Yiting Li, Michael R. Meyer, Skylar D'Angiolillo +29

At a distance of 5.1 pc, the 70 Oph AB binary star system is one of the most favorable targets for future direct imaging and astrometry missions surveying mature, terrestrial plane…

astro-ph.IM2026

Habitable Worlds Observatory (HWO): Living Worlds Community Working Group: The Search for Life on Potentially Habitable Exoplanets

Giada Arney, Niki Parenteau, Natalie Hinkel +25

The discovery of a biosphere on another planet would transform how we view ourselves, and our planet Earth, in relation to the rest of the cosmos. We now know Earth is one planet a…

astro-ph.IM2026★ 1 cited

NASA Decadal Astrobiology Research and Exploration Strategy (NASA-DARES 2025) White Paper -- Habitable Worlds Observatory Living Worlds Science Cases: Research Gaps and Needs

Niki Parenteau, Giada Arney, Eleanora Alei +28

Executive Summary: The Habitable Worlds Observatory (HWO) is the first astrophysics flagship mission with a key cross-divisional astrobiology science goal of searching for signs of…

astro-ph.SR2026

Paving the Road to the Habitable Worlds Observatory with High-Resolution Imaging I: New and Archival Speckle Observations of Potential HWO Target Stars

Zachary D. Hartman, Catherine A. Clark, Michael B. Lund +15

One of the key goals of the Habitable Worlds Observatory (HWO) is to directly image about 25 potentially habitable exoplanets and determine their properties. This challenge will re…

astro-ph.GA2025

Non-detection of J1407b in ALMA Band 7 Observations

Pamela Klaassen, Matthew Kenworthy, Eric Mamajek +4

We report on ALMA Band 7 continuum observations towards the star 1SWASP J140747.93-394542.6 taken in mid 2024. These observations were a follow-up of a previous detection of an emi…

astro-ph.SR2025

CoronaGraph Instrument Reference stars for Exoplanets (CorGI-REx) I. Preliminary Vetting and Implications for the Roman Coronagraph and Habitable Worlds Observatory

Justin Hom, Schuyler G. Wolff, Catherine A. Clark +28

The upcoming Roman Coronagraph will be the first high-contrast instrument in space capable of high-order wavefront sensing and control technologies, a critical technology demonstra…

astro-ph.EP2025

Are We There Yet? Challenges in Quantifying the Frequency of Earth Analogs in the Habitable Zone

Rachel B. Fernandes, Samson Johnson, Galen J. Bergsten +43

Searching for life elsewhere in the universe is one of the most highly prioritized pursuits in astronomy today. However, the ability to observe evidence of Earth-like life through…

astro-ph.IM2025★ 1 cited

Astronomical Optical Interferometry from the Lunar Surface

Gerard van Belle, Tabetha Boyajian, Michelle Creech-Eakman +28

The lunar surface is a compelling location for large, distributed optical facilities, with significant advantages over orbital facilities for high spatial resolution astrophysics.…

astro-ph.SR2025★ 8 cited

HWO Target Stars and Systems: A Prioritized Community List of Potential Stellar Targets for the Habitable Worlds Observatory's ExoEarth Survey

Noah W. Tuchow, Caleb K. Harada, Eric E. Mamajek +9

The HWO Target Stars and Systems 2025 (TSS25) list is a community-developed catalog of potential stellar targets for the Habitable Worlds Observatory (HWO) in its survey to directl…

astro-ph.SR2025

HWO Target Stars and Systems: A Survey of Archival UV and X-ray Data

Sarah Peacock, David J. Wilson, Tyler Richey-Yowell +14

We assess archival high-energy data for key stars on the Habitable Worlds Observatory (HWO) Target Stars and Systems 2025 list, as stellar radiation is critical to shaping and inte…

astro-ph.IM2025★ 1 cited

NASA Exoplanet Exploration Program (ExEP) Science Gap List

Karl Stapelfeldt, Eric Mamajek

The Exoplanet Exploration Program (ExEP) is chartered by the NASA Astrophysics Division to carry out science, research, and technology tasks that advance NASA's science goals for e…

astro-ph.EP2025★ 4 cited

Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. VI: Confirmation of a Long-Period Giant Planet Discovered with a Single TESS Transit

Zahra Essack, Diana Dragomir, Paul A. Dalba +81

We report the discovery and confirmation of TOI-4465 b, a , giant planet orbiting a G dwarf star at 122 pc. The planet was…

astro-ph.EP2024★ 1 cited

SPORES-HWO. II. Companion Mass Limits and Updated Planet Properties for 120 Future Exoplanet Imaging Targets from 35 yr of Precise Doppler Monitoring

Caleb K. Harada, Courtney D. Dressing, Emma V. Turtelboom +17

A goal of the future Habitable Worlds Observatory (HWO) is to directly image and spectroscopically characterize true Earth-analogs. However, if a large fraction of HWO target stars…

astro-ph.IM2024★ 15 cited

NASA Exoplanet Exploration Program (ExEP) Mission Star List for the Habitable Worlds Observatory (2023)

Eric Mamajek, Karl Stapelfeldt

The Astro 2020 Decadal Survey "Pathways to Discovery in Astronomy and Astrophysics for the 2020s" has recommended that "after a successful mission and technology maturation program…

astro-ph.EP2024★ 1 cited

HPIC: The Habitable Worlds Observatory Preliminary Input Catalog

Noah Tuchow, Chris Stark, Eric Mamajek

The Habitable Worlds Observatory Preliminary Input Catalog (HPIC) is a list of ~13,000 nearby bright stars that will be potential targets for the Habitable Worlds Observatory (HWO)…