31 citations · 53 across the 24 of their papers we have counts for
26 papers
Singles in Disguise: Kepler's Low-SNR Single-Transiting Systems as Incompletely Detected Multis
Daniel A. Yahalomi, David Nesvorny, David Kipping +2
NASA's Kepler mission found more systems with one transiting planet (``singles'') than expected from those with several (``multis''). This excess was first taken as evidence for a…
JWST Excludes Exomoons Down to 0.1 Earth Radii Around a Rocky, Temperate Exoplanet
David Kipping
To date, even with JWST, it has not been possible to test for exomoons as small as the Moon. Only two reported searches for exomoons around bound planets have been attempted with J…
ExoMOD II. A Statistical Model of Transit Timing Variations in Kepler Multi-Planet Systems
David Nesvorny, Daniel A. Yahalomi, David Kipping +2
In Paper I (Nesvorný et al. 2026), we forward modeled transit observations of the Kepler telescope to characterize the orbital properties of close-in planetary systems. The new pop…
ExoMOD I. A Forward Model for the Orbital Architecture of Kepler Multi-Planet Systems
David Nesvorny, Daniel A. Yahalomi, David Kipping +1
Transit observations only detect planets with favorable, near edge-on orientation of orbits as seen by a distant observer, which leaves much freedom for various interpretations in…
The Cosmological Hart-Tipler Conjecture
David Kipping
Self-reproducing automata, so-called von Neumann machines, have been repeatedly estimated to be capable of traversing the Galaxy many times given its age. Our mere existence thus s…
What to make of the Earth's curiously intermediate land fraction?
David Kipping
Approximately two-thirds of the Earth, the only known inhabited planet, is covered in ocean. Why not 0.01% or 99.99%? It has been previously suggested that this may represent a cer…
TIC-65910228 b / NGTS-38 b, a 180 day transiting warm super-Jupiter
Toby Rodel, Solène Ulmer-Moll, Samuel Gill +63
We present the discovery of TIC-65910228 b / NGTS-38 b, a giant exoplanet with a radius of R and a mass of M on a long-…
The Eschatian Hypothesis
David Kipping
The history of astronomical discovery shows that many of the most detectable phenomena, especially detection firsts, are not typical members of their broader class, but rather rare…
A JWST Transit of a Jupiter Analog: II. A Search for Exomoons
David Kipping, Ben Cassese, Quentin Changeat +3
We present a search for exomoons around the Jupiter-like exoplanet Kepler-167e using a NIRSpec JWST transit. Our 60 hour time series clearly reveals the enormous impact of long-ter…
A JWST Transit of a Jupiter Analog I: Constraints on the Oblateness of Kepler-167e
Ben Cassese, David Kipping, Quentin Changeat +5
In October 2024 JWST observed a transit of Kepler-167e, a Jupiter-analog planet on a 1000+ day orbit. These observations, recorded over a long baseline of nearly 60 hours, were des…
Solar Hegemony: M-Dwarfs Are Unlikely to Host Observers Such as Ourselves
David Kipping
With no firm evidence for life beyond our solar system, inferences about the population observers such as ourselves rests upon the Earth as a single input, at least for now. Whilst…
Torqued Accelerator using Radiation from the Sun (TARS) for Interstellar Payloads
David Kipping, Kathryn Lampo
The concept of exploring space using solar power is energetically appealing, but interstellar solar sails typically require extremely low areal densities (~g/m^2). This work explor…
Strong Evidence That Abiogenesis Is a Rapid Process on Earth Analogs
David Kipping
The early start to life naively suggests that abiogenesis is a rapid process on Earth-like planets. However, if evolution typically takes ~4Gyr to produce intelligent life-forms li…
Near-circular orbits for planets around M/K-type stars with Earth-like sizes and instellations
David Kipping, Diana Solano-Oropeza, Daniel A. Yahalomi +3
Recent advances have enabled the discovery of a population of potentially Earth-like planets, yet their orbital eccentricity, which governs their climate and provides clues about t…
Mapping the Orbital Landscape of Perturbing Planet Solutions for Single-Planet Systems with TTVs
Daniel A. Yahalomi, David Kipping
There are now thousands of single-planet systems observed to exhibit transit timing variations (TTVs), yet we largely lack any interpretation of the implied masses responsible for…
The democratic detrender: Ensemble-Based Removal of the Nuisance Signal in Stellar Time-Series Photometry
Daniel A. Yahalomi, David Kipping, Diana Solano-Oropeza +10
Accurate, precise, and computationally efficient removal of unwanted activity that exists as a combination of periodic, quasi-periodic, and non-periodic systematic trends in time-s…
The Exoplanet Edge: Planets Don't Induce Observable TTVs with a Dominant TTV Period Faster than Half their Orbital Period
Daniel A. Yahalomi, David Kipping, Eric Agol +1
Transit timing variations (TTVs) are observed for exoplanets at a range of amplitudes and periods, yielding an ostensibly degenerate forest of possible explanations. We offer some…
squishyplanet: Modeling Transits of Non-spherical Exoplanets in JAX
Ben Cassese, Justin Vega, Tiger Lu +3
While astronomers often assume that exoplanets are perfect spheres when analyzing observations, the subset of these distant worlds that are subject to strong tidal forces and/or ra…
Do SETI Optimists Have a Fine-Tuning Problem?
David Kipping, Geraint Lewis
In ecological systems, be it a petri dish or a galaxy, populations evolve from some initial value (say zero) up to a steady state equilibrium, when the mean number of births and de…
A Reply to: Large Exomoons unlikely around Kepler-1625 b and Kepler-1708 b
David Kipping, Alex Teachey, Daniel A. Yahalomi +7
Recently, Heller & Hippke argued that the exomoon candidates Kepler-1625 b-i and Kepler-1708 b-i were allegedly 'refuted'. In this Matters Arising, we address these claims. For Kep…
Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. IV. Long-term Doppler Spectroscopy for 11 Stars Thought to Host Cool Giant Exoplanets
Paul A. Dalba, Stephen R. Kane, Howard Isaacson +29
Discovering and characterizing exoplanets at the outer edge of the transit method's sensitivity has proven challenging owing to geometric biases and the practical difficulties asso…
Deconstructing Alien Hunting
David Kipping, Jason Wright
The search for extraterrestrial (alien) life is one of the greatest scientific quests yet raises fundamental questions about just what we should be looking for and how. We approach…
The giant nature of WD 1856 b implies that transiting rocky planets are rare around white dwarfs
David Kipping
White dwarfs (WDs) have roughly Earth-sized radii - a fact long recognized to facilitate the potential discovery of sub-Earth sized planets via transits, as well atmospheric charac…
Not So Fast Kepler-1513: A Perturbing Planetary Interloper in the Exomoon Corridor
Daniel A. Yahalomi, David Kipping, David Nesvorný +9
Transit Timing Variations (TTVs) can be induced by a range of physical phenomena, including planet-planet interactions, planet-moon interactions, and stellar activity. Recent work…