• Publications
  • Influence
Gliese 710 will pass the Sun even closer - Close approach parameters recalculated based on the first Gaia data release
Context. First results based on Gaia data show that the well-known star Gliese 710 will be the closest flyby star in the next several Myrs and its minimum distance from the Sun will be almost five
Simulating observable comets. III. Real stellar perturbers of the Oort cloud and their output
Context. This is the third of a series of papers on simulating the mechanisms acting currently on the Oort cloud and producing the observed long-period comets. Aims. In this paper we investigate the
Dynamical evolution of C/2017 K2 PANSTARRS
Context. The comet C/2017 K2 PANSTARRS drew attention to its activity at the time of its discovery in May 2017 when it was about 16 au from the Sun. This Oort spike comet will approach its perihelion
Dynamical history of the observed long-period comets
We present results of some numerical studies on the dynamical history of a large number of observed long-period comets. In our investigations we include all comets with good quality orbits. We
The simulation of the outer Oort cloud formation - The first giga-year of the evolution
Aims. Considering a model of an initial disk of planetesimals that consists of 10 038 test particles, we simulate the formation of distant-comet reservoirs for the first 1 Gyr. Since only the outer
Near-parabolic comets observed in 2006–2010. The individualized approach to 1/a-determination and the new distribution of original and future orbits
Dynamics of a complete sample of 22 small perihelion distance near-parabolic comets discovered in the years 2006 - 2010 is studied. First, osculating orbits are obtained after a careful positional
Simulating observable comets - I. The effects of a single stellar passage through or near the Oort cometary cloud
This is the first of a series of papers presenting an attempt to reproduce the mechanisms acting currently on the Oort cloud of comets and producing the observed long-period comets. In this first
Searching for the Parent of the Tunguska Cosmic Body
We present the results of an extensive study of the Tunguska Cosmic Body (TCB) origin on dynamical grounds. To identify the TCB parent, or a plausible candidate, we applied the well-known concept of
Discovery statistics and 1/a distribution of long-period comets detected during 1801–2017
For the last two decades we have been observing a huge increase in discoveries of long-period comets (LPCs), especially those with large-perihelion distances. We collected data for a full sample of
Directional Distribution of Observable Comets Induced by a Star Passage through the Oort Cloud
We simulated the passage of a star through the Oort cometary cloud and analyzed the resulting sample of observable long period comets, noting strong asymmetries in the directional distribution of the