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
Search for planets around stars with wide brown dwarfs
J. Šubjak, N. Lodieu, P. Kabáth +6
Aims. The project aims to understand better the role of wide brown dwarf companions on planetary systems. Methods. We obtained high-resolution spectra of six bright stars with co-m…
Dynamic reorientation of tidally locked bodies: application to Pluto
Vojtěch Patočka, Martin Kihoulou, Ondřej Čadek
Planets and moons reorient in space due to mass redistribution associated with various types of internal and external processes. While the equilibrium orientation of a tidally lock…
The equilibrium shape of (65) Cybele: primordial or relic of a large impact?
M. Marsset, M. Brož, J. Vermersch +24
Cybele asteroids constitute an appealing reservoir of primitive material genetically linked to the outer Solar System, and the physical properties of the largest members can be rea…
Formation of Lunar Basins from Impacts of Leftover Planetesimals
David Nesvorny, Fernando V. Roig, David Vokrouhlicky +4
The Moon holds important clues to the early evolution of the Solar System. Some 50 impact basins (crater diameter D>300 km) have been recognized on the lunar surface, implying that…
Estimating the depth of gaps opened by planets in eccentric orbit
F. J. Sanchez-Salcedo, R. O. Chametla, O. Chrenko
Planets can carve gaps in the surface density of protoplanetary discs. The formation of these gaps can reduce the corotation torques acting on the planets. In addition, gaps can ha…
Asteroid spin-states of a 4 Gyr collisional family
D. Athanasopoulos, J. Hanus, C. Avdellidou +29
Families of asteroids generated by the collisional fragmentation of a common parent body have been identified using clustering methods of asteroids in their proper orbital element…
Trapping (sub-)Neptunes similar to TOI-216b at the inner disk rim: Implications for the disk viscosity and the Neptunian desert
Ondřej Chrenko, Raúl O. Chametla, David Nesvorný +1
[Abridged] The occurrence rate of observed sub-Neptunes has a break at 0.1 au, which is often attributed to a migration trap at the inner rim of protoplanetary disks where a positi…
Extremely young asteroid pair (458271) 2010 UM26 and 2010 RN221
D. Vokrouhlický, P. Fatka. M. Micheli, P. Pravec +1
Extremely similar heliocentric orbital elements of the main-belt objects (458271) 2010 UM26 and 2010 RN221 make them the tightest known pair and promise its very young age. We anal…
Sub-surface alteration and related change in reflectance spectra of space-weathered materials
K. Chrbolková, P. Halodová, T. Kohout +7
One of the main complications for the interpretation of reflectance spectra of airless planetary bodies is surface alteration by space weathering caused by irradiation by solar win…
Discovery of an asteroid family linked to (22) Kalliope and its moon Linus
M. Brož, M. Ferrais, P. Vernazza +2
According to adaptive-optics observations by Ferrais et al., (22) Kalliope is a 150-km, dense and differentiated body. Here, we interpret (22) Kalliope in the context of bodies in…
SPH simulations of high-speed collisions between asteroids and comets
J. Rozehnal, M. Brož, D. Nesvorný +4
We studied impact processes by means of smoothed-particle hydrodynamics (SPH) simulations. The method was applied to modeling formation of main-belt families during the cometary bo…
Asteroid Families: properties, recent advances and future opportunities
Bojan Novakovic, David Vokrouhlicky, Federica Spoto +1
Collisions are one of the key processes shaping planetary systems. Asteroid families are outcomes of such collisions still identifiable across our solar system. The families provid…
TOI-2046b, TOI-1181b and TOI-1516b, three new hot Jupiters from \textit{TESS}: planets orbiting a young star, a subgiant and a normal star
Petr Kabáth, Priyanka Chaturvedi, Phillip J. MacQueen +54
We present the confirmation and characterization of three hot Jupiters, TOI-1181b, TOI-1516b, and TOI-2046b, discovered by the TESS space mission. The reported hot Jupiters have or…
Constraints on TESS albedos for five hot Jupiters
Martin Blažek, Petr Kabáth, Anjali A. A. Piette +10
Photometric observations of occultations of transiting exoplanets can place important constraints on the thermal emission and albedos of their atmospheres. We analyse photometric m…
TOI-1670 b and c: An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to have Originated from High-Eccentricity Migration
Quang H. Tran, Brendan P. Bowler, Michael Endl +38
We report the discovery of two transiting planets around the bright ( mag) main sequence F7 star TOI-1670 by the Transiting Exoplanet Survey Satellite. TOI-1670 b is a sub-N…
Spreading pressure bumps in gas-dust discs can stall planet migration via planet-vortex interactions
R. O. Chametla, O. Chrenko
We investigate the gravitational interaction between low- to intermediate-mass planets () and two previously formed pressure bumps in a gas-dust prot…
TOI-1268b: the youngest, hot, Saturn-mass transiting exoplanet
J. Šubjak, M. Endl, P. Chaturvedi +41
We report the discovery of TOI-1268b, a transiting Saturn-mass planet from the TESS space mission. With an age of less than one Gyr, derived from various age indicators, TOI-1268b…
Dynamical Implantation of Blue Binaries in the Cold Classical Kuiper Belt
David Nesvorny, David Vokrouhlicky, Wesley C. Fraser
Colors and binarity provide important constraints on the Kuiper belt formation. The cold classical objects at radial distance r=42-47 au from the Sun are predominantly very red (sp…