activity
20162026
most citedTrue masses of the long-period companions to HD 92987 and HD 221420 from Hipparcos-Gaia astrometry

43 citations · 151 across the 26 of their papers we have counts for

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Showing 2026Show all

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astro-ph.EP2026

HD 715 b, a Warm Jupiter Orbiting a Massive Subgiant Discovered from a Single TESS Transit

Alexander Venner, Robert A. Wittenmyer, Andrew Vanderburg +23

Transiting Warm Jupiters orbiting bright stars are scarcely known, but a substantial number of these planets have been uncovered by the TESS mission. In this work we report the dis…

astro-ph.EP2026

TOI-6981 b: a transiting sub-Neptune at the water ice line

Madison G. Scott, Amaury H. M. J Triaud, Emily K. Pass +42

We present TOI-6981 b, a cold (Teq= 170.0 +/-4.5 K, assuming an Earth-like albedo) sub-Neptune (Rb=2.40+/-0.10 R_oplus) on a 60.8 day orbit around around its M4-type host star (R*=…

astro-ph.SR2026

A New Sirius-like System at Only 21 Parsecs: An Elusive White Dwarf Companion to the Nearby K-dwarf HD 38230

Alexander Venner, Logan A. Pearce, Qier An +6

White dwarfs are among the rarest and faintest stars found in the solar neighbourhood and are therefore persistently challenging to detect. Whereas the \textit{Gaia} mission has va…

astro-ph.EP2026

The Pan-Pacific Planet Search -- IX. A menagerie of companions orbiting evolved stars

Robert A. Wittenmyer, Alexander Venner, Tyler Fairnington +22

We present resolutions as to the nature of six speculative candidate companions proposed in the final data release of the Pan-Pacific Planet Search, a 6-year radial-velocity survey…

astro-ph.EP2026★ 1 cited

Uncovering the Rapidly Evolving Orbits of the Dynamic TOI-201 System

Ismael Mireles, Solène Ulmer-Moll, Donald Liveoak +47

Studying planetary interactions in exoplanet systems informs theories of planet formation and evolution, providing essential context for understanding our own solar system. We comb…

astro-ph.EP2026

A Planetary Illusion's Funeral: Non-detection of a Gaia DR3 Exoplanet Candidate, and the Role of Intermediate-precision Radial Velocities in Gaia Exoplanet Follow-up

Alexander Venner, Chelsea X. Huang, David W. Latham +4

The detection of exoplanets using astrometry has long been an area of interest, but is fraught with challenges. The Gaia mission is fundamentally reshaping this field thanks to its…

astro-ph.EP2026★ 1 cited

A Cool Earth-sized Planet Candidate Transiting a Tenth Magnitude K-dwarf From K2

Alexander Venner, Andrew Vanderburg, Chelsea X. Huang +7

The transit method is currently one of our best means for the detection of potentially habitable "Earth-like" exoplanets. In principle, given sufficiently high photometric precisio…