10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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18 papers · 2 filters
Spin Change of Asteroid 2012 TC4 probably by Radiation Torques
Hee-Jae Lee, Josef Ďurech, David Vokrouhlický +9
Asteroid 2012 TC4 is a small (10 m) near-Earth object that was observed during its Earth close approaches in 2012 and 2017. Earlier analyses of light curves revealed its exci…
Asteroid models reconstructed from ATLAS photometry
J. Durech, J. Tonry, N. Erasmus +4
The Asteroid Terrestrial-impact Last Alert System (ATLAS) is an all-sky survey primarily aimed at detecting potentially hazardous near-Earth asteroids. Apart from the astrometry of…
Migration of gap-opening planets in 3D stellar-irradiated accretion disks
Ondřej Chrenko, David Nesvorný
Context. The origin of giant planets at moderate separations au is still not fully understood because numerical studies of Type II migration in protoplanetary di…
A pair of Jovian Trojans at the L4 Lagrange point
Timothy R. Holt, David Vokrouhlický, David Nesvorný +2
Asteroid pairs, two objects that are not gravitationally bound to one another, but share a common origin, have been discovered in the Main belt and Hungaria populations. Such pairs…
Physical and dynamical characterization of the Euphrosyne asteroid Family
B. Yang, J. Hanus, M. Broz +5
The Euphrosyne asteroid family occupies a unique zone in orbital element space around 3.15 au and may be an important source of the low-albedo near-Earth objects. The parent body o…
The TOI-763 system: sub-Neptunes orbiting a Sun-like star
M. Fridlund, J. Livingston, D. Gandolfi +51
We report the discovery of a planetary system orbiting TOI-763 (aka CD-39 7945), a , high proper motion G-type dwarf star that was photometrically monitored by the TESS spa…
Thermal and orbital evolution of low-mass exoplanets
Michaela Walterová, Marie Běhounková
Thermal, orbital, and rotational dynamics of tidally loaded exoplanets are interconnected by intricate feedback. The rheological structure of the planet determines its susceptibili…
Binary asteroid (31) Euphrosyne: Ice-rich and nearly spherical
B. Yang, J. Hanus, B. Carry +38
Asteroid (31) Euphrosyne is one of the biggest objects in the asteroid main belt and the Euphrosyne family occupies a highly inclined region in the outer main belt and contains a r…
K2-280b -- a low density warm sub-Saturn around a mildly evolved star
Grzegorz Nowak, Enric Palle, Davide Gandolfi +57
We present an independent discovery and detailed characterisation of K2-280b, a transiting low density warm sub-Saturn in a 19.9-day moderately eccentric orbit (e = 0.35_{-0.04}^{+…
Solar System limits on gravitational dipoles
Indranil Banik, Pavel Kroupa
The gravitational dipole theory of Hadjukovic (2010) is based on the hypothesis that antimatter has a negative gravitational mass and thus falls upwards on Earth. Astrophysically,…
OSSOS XX: The Meaning of Kuiper Belt Colors
David Nesvorny, David Vokrouhlicky, Mike Alexandersen +9
Observations show that 100-km-class Kuiper belt objects (KBOs) can be divided in (at least) two color groups, hereafter red (R, g-i<1.2) and very red (VR, g-i>1.2), reflecting a di…
Asteroid models from generalised projections: Essential facts for asteroid modellers and geometric inverse problem solvers
Mikko Kaasalainen, Josef Durech
We present a review of the problem of asteroid shape and spin reconstruction from generalised projections; i.e., from lightcurves, disk-resolved images, occultation silhouettes, ra…
Near-infrared observations of active asteroid (3200) Phaethon reveal no evidence for hydration
Driss Takir, Theodore Kareta, Joshua P. Emery +5
Asteroid (3200) Phaethon is an active near-Earth asteroid and the parent body of the Geminid Meteor Shower. Because of its small perihelion distance, Phaethon's surface reaches tem…
Analytical solution of the Colombo top problem
J. Haponiak, S. Breiter, D. Vokrouhlicky
The Colombo top is a basic model in the rotation dynamics of a celestial body moving on a precessing orbit and perturbed by a gravitational torque. The paper presents a detailed st…
Very Slow Rotators from Tidally Synchronized Binaries
D. Nesvorny, D. Vokrouhlicky, W. F. Bottke +2
A recent examination of K2 lightcurves indicates that ~15% of Jupiter Trojans have very slow rotation (spin periods Ps>100 h). Here we consider the possibility that these bodies fo…
Shape model and spin state of non-principal axis rotator (5247) Krylov
H. -J. Lee, J. Ďurech, M. -J. Kim +12
Context. The study of non-principal axis (NPA) rotators can provide important clues to the evolution of the spin state of asteroids. However, so far, very few studies have focused…
Three planets transiting the evolved star EPIC 249893012: a hot 8.8-M super-Earth and two warm 14.7 and 10.2-M sub-Neptunes
D. Hidalgo, E. Pallé, R. Alonso +57
We report the discovery of a new planetary system with three transiting planets, one super-Earth and two sub-Neptunes, that orbit EPIC\,249893012, a G8\,IV-V evolved star ($M_\star…
Debiased albedo distribution for Near Earth Objects
Alessandro Morbidelli, Marco Delbo, Mikael Granvik +5
We extend the most recent orbital and absolute magnitude Near Earth Object (NEO) model (Granvik et al., 2018) to provide a statistical description of NEO geometric albedos. Our mod…