200 citations · 881 across the 13 of their papers we have counts for
13 papers
Sublimation as an effective mechanism for flattened lobes of (486958) Arrokoth
Yuhui Zhao, Ladislav Rezac, Yuri Skorov +3
The New Horizons spacecraft's flyby of Kuiper Belt Object (KBO) (486958) Arrokoth revealed a bilobed shape with highly flattened lobes both aligned to its equatorial plane, and a r…
Activity of (6478) Gault during January 13 - March 28, 2019
Oleksandra Ivanova, Yuri Skorov, Igor Luk'yanyk +5
We present the results of photometric observations of active asteroid (6478) Gault performed at heliocentric distances from 2.46 to 2.30 au and geocentric distances from 1.79 to 1.…
The Phenomenon of Shape Evolution due to Solar Driven Outgassing for Analogues of Small Kuiper Belt Objects
Yuhui Zhao, Ladislav Rezac, Yuri Skorov +1
One of the key findings of the Rosetta's mission to the Jupiter family comet 67P/Churyumov-Gerasimenko was its peculiar bilobed shape along with the apparent north/south dichotomy…
The thermal, mechanical, structural, and dielectric properties of cometary nuclei after Rosetta
O. Groussin, N. Attree, Y. Brouet +16
The physical properties of cometary nuclei observed today relate to their complex history and help to constrain their formation and evolution. In this article, we review some of th…
Local manifestations of cometary activity
Jean-Baptiste Vincent, Tony Farnham, Ekkehard Kührt +5
Comets are made of volatile and refractory material and naturally experience various degrees of sublimation as they orbit around the Sun. This gas release, accompanied by dust, rep…
Seasonal Mass Transfer on the Nucleus of Comet 67P/Chuyumov-Gerasimenko
H. U. Keller, S. Mottola, S. F. Hviid +47
We collect observational evidence that supports the scheme of mass transfer on the nucleus of comet 67P/Churyumov-Gerasimenko. The obliquity of the rotation axis of 67P causes stro…
Acceleration of cometary dust near the nucleus: Application to 67P/Churyumov-Gerasimenko
Yuri Skorov, Volodymyr Reshetnyk, Pedro Lacerda +2
We present a model of cometary dust capable of simulating the dynamics within the first few tens of km of the comet surface. Recent measurements by the GIADA and COSIMA instruments…
What drives the dust activity of comet 67P/Churyumov-Gerasimenko?
B. Gundlach, J. Blum, H. U. Keller +1
We use the gravitational instability formation scenario of cometesimals to derive the aggregate size that can be released by the gas pressure from the nucleus of comet 67P/Churyumo…
A note on the survival of the sungrazing comet C/2011 W3 (Lovejoy) within the Roche limit
B. Gundlach, J. Blum, Yu. V. Skorov +1
In this work, a novel approach to explain the survival of sungrazing comets within the Roche limit is presented. It is shown that in the case of low tensile strength of the cometar…
Dust release and tensile strength of the non-volatile layer of cometary nuclei
Yuri Skorov, Jürgen Blum
We developed a thermophysical model for cometary nuclei, which is based upon the assumption that comets form by the gravitational instability of an ensemble of dust and ice aggrega…
Outgassing of icy bodies in the solar system - I. The sublimation of hexagonal water ice through dust layers
Bastian Gundlach, Yuri Skorov, Jürgen Blum
Our knowledge about the physical processes determining the activity of comets were mainly influenced by several extremely successful space missions, the predictions of theoretical…
Activity of comets: Gas Transport in the Near-Surface Porous Layers of a Cometary Nucleus
Yu. Skorov, R. van Lieshout, J. Blum +1
The gas transport through non-volatile random porous media is investigated numerically. We extend our previous research of the transport of molecules inside the uppermost layer of…
Thermal conductivity measurements of porous dust aggregates: I. Technique, model and first results
Maya Krause, Jürgen Blum, Yuri V. Skorov +1
We present a non-invasive technique for measuring the thermal conductivity of fragile and sensitive materials. In the context of planet formation research, the investigation of the…