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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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131 papers · 1 filter
A generalized dipole-segment model for the gravitational field of elongated bodies
A. K. de Almeida, A. F. S. Ferreira, L. B. T. Santos +6
Context. Various simplified models have been investigated to understand the complex dynamical environment near irregular asteroids. We propose a generalized dipole-segment model (G…
Interstellar comet 3I/ATLAS: discovery and physical description
Bryce T. Bolin, Matthew Belyakov, Christoffer Fremling +18
We describe the physical characteristics of interstellar comet 3I/ATLAS, discovered on 2025 July 1 by the Asteroid Terrestrial-impact Last Alert System. The comet has eccentricity,…
A Non-Primordial Origin for the Widest Binaries in the Kuiper Belt
Hunter M. Campbell, Kalee E. Anderson, Nathan A. Kaib
Nearly one-third of objects occupying the most circular, coplanar Kuiper belt orbits (the cold classical belt) are binary, and several percent of them are "ultra-wide" binaries (UW…
TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf
M. Mallorquín, E. Goffo, E. Pallé +79
We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49, and the a…
Numerical investigations of the orbital dynamics around a synchronous binary system of asteroids
L. B. T. Santos, Allan Kardec de Almeida, P. A. Sousa-Silva +5
In this article, equilibrium points and families of periodic orbits in the vicinity of the collinear equilibrium points of a binary asteroid system are investigated with respect to…
Analysis of the dynamics of a spacecraft in the vicinity of an asteroid binary system with equal masses
L. B. T. Santos, P. A. Sousa-Silva, M. O. Terra +8
In this work, we performed a dynamical analysis of a spacecraft around a nearly equal-mass binary near-Earth asteroid with application to the asteroid 2017 YE5, which is also a pos…
Oort cloud (exo)planets
Sean N. Raymond, Andre Izidoro, Nathan A. Kaib
Dynamical instabilities among giant planets are thought to be nearly ubiquitous, and culminate in the ejection of one or more planets into interstellar space. Here we perform N-bod…
Two sub-Neptunes around the M dwarf TOI-1470
E. González-Álvarez, M. R. Zapatero Osorio, J. A. Caballero +50
Aims. A transiting planet candidate with a sub-Neptune radius orbiting the nearby ( = 51.90.07 pc) M1.5 V star TOI-1470 with a period of 2.5 d was announced by the NA…
The CARMENES search for exoplanets around M dwarfs. Guaranteed time observations Data Release 1 (2016-2020)
I. Ribas, A. Reiners, M. Zechmeister +102
The CARMENES instrument was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of n…
Comparisons of the core and mantle compositions of earth analogs from different terrestrial planet formation scenarios
Jesse T. Gu, Rebecca A. Fischer, Matthew C. Brennan +5
The chemical compositions of Earth's core and mantle provide insight into the processes that led to their formation. N-body simulations, on the other hand, generally do not contain…
TOI-3984 A b and TOI-5293 A b: two temperate gas giants transiting mid-M dwarfs in wide binary systems
Caleb I. Cañas, Shubham Kanodia, Jessica Libby-Roberts +30
We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A () is an M4 dwarf hosting…
Mercury's formation within the Early Instability Scenario
Matthew S. Clement, John E. Chambers, Nathan A. Kaib +2
The inner solar system's modern orbital architecture provides inferences into the epoch of terrestrial planet formation; a ~100 Myr time period of planet growth via collisions with…
Close TNO Passages as a Driver of the Origin and Evolution of Ultra-Wide Kuiper Belt Binaries
Hunter M. Campbell, Lukas R. Stone, Nathan A. Kaib
Within the dynamically cold low inclination portion of the Classical Kuiper Belt, there exists a population of weakly bound binary systems with a number of unusual properties; most…
TOI-1468: A system of two transiting planets, a super-Earth and a mini-Neptune, on opposite sides of the radius valley
P. Chaturvedi, P. Bluhm, E. Nagel +67
We report the discovery and characterization of two small transiting planets orbiting the bright M3.0V star TOI-1468 (LSPM J0106+1913), whose transit signals were detected in the p…
Precise mass determination for the keystone sub-Neptune planet transiting the mid-type M dwarf G 9-40
R. Luque, G. Nowak, T. Hirano +45
Context. Despite being a prominent subset of the exoplanet population discovered in the past three decades, the nature and provenance of sub-Neptune-sized planets are still one of…
Constrained Reference Star Differential Imaging: Enabling High-Fidelity Imagery of Highly Structured Circumstellar Disks
Kellen Lawson, Thayne Currie, John Wisniewski +3
High-contrast imaging presents us with the opportunity to study circumstellar disks and the planets still embedded within them -- providing key insights into the formation and evol…
GJ 3929: High Precision Photometric and Doppler Characterization of an Exo-Venus and its Hot, Mini-Neptune-mass Companion
Corey Beard, Paul Robertson, Shubham Kanodia +31
We detail the follow up and characterization of a transiting exo-Venus identified by TESS, GJ 3929b, (TOI-2013b) and its non-transiting companion planet, GJ 3929c (TOI-2013c). GJ 3…
Dynamical Fates of S-Type Planetary Systems in Embedded Cluster Environments
Elizabeth A. Ellithorpe, Nathan A. Kaib
The majority of binary star systems that host exoplanets will spend the first portion of their lives within a star-forming cluster that may drive dynamical evolution of the binary-…
A new third planet and the dynamical architecture of the HD33142 planetary system
Trifon Trifonov, Anna Wollbold, Martin Kürster +24
Based on recently-taken and archival HARPS, FEROS and HIRES radial velocities (RVs), we present evidence for a new planet orbiting the first ascent red giant star HD33142 (with an…
A Super-Earth Orbiting Near the Inner Edge of the Habitable Zone around the M4.5-dwarf Ross 508
Hiroki Harakawa, Takuya Takarada, Yui Kasagi +46
We report the near-infrared radial-velocity (RV) discovery of a super-Earth planet on a 10.77-day orbit around the M4.5 dwarf Ross 508 (). Using precision RVs f…
TOI-1696 and TOI-2136: Constraining the Masses of Two Mini-Neptunes with HPF
Corey Beard, Paul Robertson, Shubham Kanodia +29
We present the validation of two planets orbiting M dwarfs, TOI-1696b and TOI-2136b. Both planets are mini-Neptunes orbiting nearby stars, making them promising prospects for atmos…
Images of Embedded Jovian Planet Formation At A Wide Separation Around AB Aurigae
Thayne Currie, Kellen Lawson, Glenn Schneider +30
Direct images of protoplanets embedded in disks around infant stars provide the key to understanding the formation of gas giant planets like Jupiter. Using the Subaru Telescope and…
The CARMENES search for exoplanets around M dwarfs: Two Saturn-mass planets orbiting active stars
A. Quirrenbach, V. M. Passegger, T. Trifonov +26
The CARMENES radial-velocity survey is currently searching for planets in a sample of 387 M dwarfs. Here we report on two Saturn-mass planets orbiting TYC 2187-512-1 ($M_\star = 0.…
TOI-3757 b: A low density gas giant orbiting a solar-metallicity M dwarf
Shubham Kanodia, Jessica Libby-Roberts, Caleb I. Canas +32
We present the discovery of a new Jovian-sized planet, TOI-3757 b, the lowest density planet orbiting an M dwarf (M0V). It orbits a solar-metallicity M dwarf discovered using TESS…