HI
Howard Isaacson
astro-ph.EPastro-ph.SRastro-ph.IMastro-ph.GAastro-ph.HEastro-phphysics.pop-phPlanetsastro-ph.COStars, Celestial
On Valency
published · living versionsW_3avhkf7n·v1 · currentpublished
Analysis of the Breakthrough Listen signal of interest blc1 with a technosignature verification framework
with Sofia Z. Sheikh, Shane Smith, Danny C. Price, David DeBoer +13
1 version
W_eqywppz2·v1published
W_kxbebmtq·v1published
W_t6ngvs84·v1published
W_xmwh63an·v1published
W_x895hkjk·v1published
W_ern7aetm·v1published
W_ae4daghw·v1published
W_fga62y7v·v1published
W_4epwyxsc·v1published
Preprints & journals
378 papers in the corpus · 2006–2026V347 Aurigae: from Peak to Quiescence2610.24765v1 · Diya T. Kumar, Lynne A. Hillenbrand, Howard Isaacson2026 · 0 citationsarXivon Valency
Precise and Accurate Mass and Radius Measurements of Thirty Galactic Metal-Poor Stars in Detached Eclipsing Binaries2609.19248v1 · D. M. Rowan, K. Z. Stanek, C. S. Kochanek et al.2026 · 0 citationsarXiv
Does HD 3167 Have Planets with Perpendicular Orbits?2609.19277v1 · Joshua N. Winn, Jack Lubin, Gu\dhmundur Stef'ansson et al.2026 · 0 citationsarXiv
Evidence for an Extended Hydrogen Outflow on WASP-12 b2609.17675v2 · Morgan Saidel, Shreyas Vissapragada, Heather A. Knutson et al.2026 · 0 citationsarXiv
POSEIDON III: The Aligned Orbit of the Hot Neptune Around the Hot Star WASP-1952609.02888v2 · Juan I. Espinoza-Retamal, Joshua N. Winn, Rafael Brahm et al.2026 · 0 citationsarXiv
Conspicuous Gas, Cryptic Dust: Spectroscopy and Chromaticity of Complex Periodic Variables2609.00136v1 · Luke G. Bouma, Facundo Perez Paolino, Lynne A. Hillenbrand et al.2026 · 0 citationsarXiv
The Cephei System: Updated Orbits, Dynamical Architecture, and Limits on Additional Companions2608.30030v2 · Judah Van Zandt, Brendan P. Bowler, Michael Endl et al.2026 · 0 citationsarXiv
Spin-Orbit Alignment of Two Neptune-size Planets Younger than 500 Myr: TOI-560 b and TOI-5082 b2608.22611v1 · Elina Y. Zhang, Fei Dai, Andrew W. Howard et al.2026 · 0 citationsarXiv
Spectroscopic follow-up of compact object binary candidates from Gaia DR3: White dwarfs, neutron stars, black holes, and the parallax zeropoint2608.06453v2 · Kareem El-Badry, David W. Latham, Hans-Walter Rix et al.2026 · 0 citationsarXiv
PANTERA. I. Hunting for the Most Metal-Rich Stars in the Solar Neighborhood with High-Resolution Spectroscopy2607.27328v1 · Serat M. Saad, D. M. Rowan, K. Z. Stanek et al.2026 · 0 citationsarXiv
Hydrogen airglow from an escaping ultrahot Jupiter atmosphere2606.23899v1 · Yapeng Zhang, Chenliang Huang, Aaron Householder et al.2026 · 0 citationsarXiv
Gaia Exoplanet Orbits, Demographics, and Evolution Survey (GEODES): Characteristics of Three Long-Period Companions Accelerating their Host Stars2605.23018v2 · Judah Van Zandt, Brendan Bowler, Erik Petigura et al.2026 · 0 citationsarXiv
An Outer Giant Planet or Brown Dwarf in the 51 Pegasi System?2605.11127v1 · Marvin Morgan, Brendan P. Bowler, Kyle Franson et al.2026 · 0 citationsarXiv
The KPF-SLOPE Survey - Small, Compact Multi-Planet Systems Appear Spin-Orbit Aligned2603.23713v2 · Luke B. Handley, Andrew W. Howard, Fei Dai et al.2026 · 0 citationsarXiv
A Century of Radial Velocity and Astrometric Monitoring of 70 Oph AB: New PFS Data and Constraints on Planetary Companions2603.20044v2 · Yiting Li, Michael R. Meyer, Skylar D'Angiolillo et al.2026 · 0 citationsarXiv
Quiet, but not silent. The X-ray activity of the Maunder minimum star HD 1666202601.11853v1 · M. M. Bennedik, B. Stelzer, H. Isaacson et al.2026 · 0 citationsarXiv
TOI-4495: A Pair of Aligned, Near-Resonant Sub-Neptunes that Likely Experienced Overstable Migration2601.02665v1 · Mu-Tian Wang, Fei Dai, Hui-Gen Liu et al.2026 · 2 citationsarXiv
From Earths to Super-Earths: Five New Small Planets Transiting M Dwarf Stars2512.11971v1 · Jonathan Gomez Barrientos, Heather A. Knutson, Morgan Saidel et al.2025 · 2 citationsarXiv
A Test of Substellar Evolutionary Models with High-Precision Ages from Asteroseismology and Gyrochronology for the Benchmark System HR 7672AB2512.06083v2 · Yaguang Li, Michael C. Liu, Trent J. Dupuy et al.2025 · 3 citationsarXiv
The KPF SURFS-UP Survey I: Transmission Spectroscopy of WASP-76 b2511.14175v2 · Aaron Householder, Fei Dai, Aurora Kesseli et al.2025 · 0 citationsarXiv
A search for black holes with metal-poor stellar companions: I. Survey sample selection and single epoch radial velocity follow-up2510.17746v1 · Casey Y. Lam, Joshua D. Simon, Kareem El-Badry et al.2025 · 2 citationsarXiv
Dynamical Architectures of S-type Transiting Planets in Binaries II: A Dichotomy in Orbital Alignment of Small Planets in Close Binary Systems2509.25332v2 · Jingwen Zhang, Daniel Huber, Michael Bottom et al.2025 · 5 citationsAJ 171 77 (2026)
The Polar Orbit of TOI-2374 b, a Planet in the Neptunian Ridge2509.11565v1 · Samuel W. Yee, Patrick Tamburo, Gudmundur Stef'ansson et al.2025 · 6 citationsarXiv
The highest mass Kepler red giants -- II. Spectroscopic parameters, the amplitude-activity relation, and unexpected halo orbits2508.12585v1 · Courtney L. Crawford, Yaguang Li, Daniel Huber et al.2025 · 3 citationsMon Not R Astron Soc (2025) 3289-3301
A Spectroscopic Search for Dormant Black Holes in Low-Metallicity Binaries2507.12532v2 · Pranav Nagarajan, Kareem El-Badry, Henrique Reggiani et al.2025 · 7 citationsarXiv
A Hot Jupiter with a Retrograde Orbit around a Sun-like Star and a Toy Model of Hot Jupiters in Wide Binary Star Systems2507.02667v1 · Steven Giacalone, Andrew W. Howard, Ryan A. Rubenzahl et al.2025 · 3 citationsarXiv
The star HIP 41378 potentially misaligned with its cohort of long-period planets2507.01807v2 · S. Grouffal, A. Santerne, V. Bourrier et al.2025 · 5 citationsA&A 701, A173 (2025)
The TESS Grand Unified Hot Jupiter Survey. III. Thirty More Giant Planets2507.01855v1 · Samuel W. Yee, Joshua N. Winn, Joel D. Hartman et al.2025 · 6 citationsarXiv
Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. VI: Confirmation of a Long-Period Giant Planet Discovered with a Single TESS Transit2506.20019v1 · Zahra Essack, Diana Dragomir, Paul A. Dalba et al.2025 · 4 citationsarXiv
The OATMEAL Survey. II. The 3D spin-orbit obliquity of an eccentric transiting brown dwarf in the Ruprecht 147 open cluster2506.18971v2 · Theron W. Carmichael, Steven Giacalone, Noah Vowell et al.2025 · 7 citationsarXiv
Stellar Obliquity of the Ultra-Short-Period Planet System HD 939632505.10804v1 · Huan-Yu Teng, Fei Dai, Andrew W. Howard et al.2025 · 5 citationsarXiv
FUOr-Aur 0544+3330: A New YSO Outburst in the Outskirts of Auriga OB1, Viewed Face-On2505.11440v1 · Lynne A. Hillenbrand, Adolfo S. Carvalho, Dan Stern et al.2025 · 0 citationsarXiv
The True Stellar Obliquity of a Sub-Saturn Planet from the Tierras Observatory and KPF2505.03628v1 · Patrick Tamburo, Samuel W. Yee, Juliana Garc'ia-Mej'ia et al.2025 · 0 citationsarXiv
HIP 15429: A newborn Be star on an eccentric binary orbit2504.06973v2 · Johanna Muller-Horn, Kareem El-Badry, Hans-Walter Rix et al.2025 · 8 citationsA&A 701, A9 (2025)
TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf2502.16087v3 · Rena A. Lee, Fei Dai, Andrew W. Howard et al.2025 · 3 citationsarXiv
Planet Masses, Radii, and Orbits from NASA's K2 Mission2502.04436v1 · Andrew W. Howard, Evan Sinukoff, Sarah Blunt et al.2025 · 13 citationsarXiv
K-dwarf Radius Inflation and a 10-Gyr Spin-down Clock Unveiled through Asteroseismology of HD 219134 from the Keck Planet Finder2502.00971v2 · Yaguang Li, Daniel Huber, J. M. Joel Ong et al.2025 · 15 citationsarXiv
A Pair of Dynamically Interacting Sub-Neptunes Around TOI-60542501.09095v1 · Maxwell A. Kroft, Thomas G. Beatty, Ian J. M. Crossfield et al.2025 · 2 citationsarXiv
The TESS-Keck Survey XXIV: Outer Giants may be More Prevalent in the Presence of Inner Small Planets2501.06342v1 · Judah Van Zandt, Erik A. Petigura, Jack Lubin et al.2025 · 14 citationsarXiv
An Obliquity Measurement of the Hot Neptune TOI-1694b2412.07950v1 · Luke B. Handley, Andrew W. Howard, Ryan A. Rubenzahl et al.2024 · 12 citationsarXiv
OrCAS: Origins, Compositions, and Atmospheres of Sub-neptunes. I. Survey Definition2411.16836v1 · Ian J. M. Crossfield, Alex S. Polanski, Paul Robertson et al.2024 · 5 citationsarXiv
HD 119130 b is not an "ultra-dense" sub-Neptune2411.02518v2 · Joseph M. Akana Murphy, Rafael Luque, Natalie M. Batalha et al.2024 · 1 citationarXiv
Ages of Stars and Planets in the Kepler Field Younger Than Four Billion Years2410.06246v1 · Luke G. Bouma, Lynne A. Hillenbrand, Andrew W. Howard et al.2024 · 14 citationsarXiv
The Compositions of Rocky Planets in Close-in Orbits Tend to be Earth-Like2410.00213v1 · Casey L. Brinkman, Lauren M. Weiss, Daniel Huber et al.2024 · 16 citationsarXiv
The HD 191939 Exoplanet System is Well-Aligned and Flat2409.06795v1 · Jack Lubin, Erik A. Petigura, Judah Van Zandt et al.2024 · 10 citationsarXiv
Precise and Accurate Mass and Radius Measurements of Fifteen Galactic Red Giants in Detached Eclipsing Binaries2409.02983v2 · D. M. Rowan, K. Z. Stanek, C. S. Kochanek et al.2024 · 5 citationsarXiv
Obliquities of Exoplanet Host Stars: 19 New and Updated Measurements, and Trends in the Sample of 205 Measurements2408.09793v1 · Emil Knudstrup, Simon H. Albrecht, Joshua N. Winn et al.2024 · 41 citationsA&A 690, A379 (2024)
Discovery of a Jupiter Analog Misaligned to the Inner Planetary System in HD 733442408.09614v2 · Jingwen Zhang, Lauren M. Weiss, Daniel Huber et al.2024 · 13 citationsarXiv
The $\sim$50-Myr-Old TOI-942c is Likely on an Aligned, Coplanar Orbit and Losing Mass2408.07788v1 · Huan-Yu Teng, Fei Dai, Andrew W. Howard et al.2024 · 0 citationsarXiv
Utilizing Photometry from Multiple Sources to Mitigate Stellar Variability in Precise Radial Velocities: A Case Study of Kepler-212408.02873v1 · Corey Beard, Paul Robertson, Mark R. Giovinazzi et al.2024 · 4 citationsarXiv
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