53 citations · 290 across the 16 of their papers we have counts for
16 papers
Update of the CODE catalogue and some aspects of the dynamical status of Oort Cloud comets
Piotr A. Dybczyński, Małgorzata Królikowska
The outer Solar System is believed to host a vast reservoir of long-period comets (LPCs), but our understanding of their spatial distribution and dynamical history remains limited…
News in the CODE Catalogue
Małgorzata Królikowska, Piotr A. Dybczyński
We describe here updates and new elements of the Catalogue of Cometary Orbits and their Dynamical Evolution (CODE) that, in its original 2020 version, has been introduced by Królik…
Important stellar perturbers found during the StePPeD database update based on Gaia EDR3 data
Piotr A. Dybczyński, Filip Berski, Jakub Tokarek +3
Context. In 2020, the initial version of the Stellar Potential Perturbers Database (StePPeD) was presented with the aim to deliver up-to-date information on the stars and stellar s…
The influence of individual stars on the long-term dynamics of comets C/2014 UN271 and C/2017 K2
Piotr A. Dybczyński, Małgorzata Królikowska
In June 2021 the discovery of an unusual comet C/2014 UN271 Bernardinelli-Bernstein has been announced. Its cometary activity beyond Uranus orbit also has refreshed interest in sim…
Galactic and stellar perturbations of long period comet motion -- Practical considerations
Piotr A. Dybczyński, Sławomir Breiter
Context. Due to our increasing knowledge on the Galactic and stellar neighborhood of the Solar System, modern long-period comet motion studies have to take into account both stella…
The Catalogue of Cometary Orbits and their Dynamical Evolution
Małgorzata Królikowska, Piotr A. Dybczyński
The new cometary catalogue containing data for almost 300 long-period comets that were discovered before 2018 is announced (the CODE catalogue). This is the first catalogue contain…
A surprise in the updated list of stellar perturbers of long period comets motion
Rita Wysoczańska, Piotr A. Dybczyński, Magdalena Polińska
The second Gaia data release (Gaia DR2) provided us with the precise five-parameter astrometry for 1.3 billion of sources. As stars passing close to the Solar System are thought to…
First stars that could significantly perturb comet motion are finally found
Rita Wysoczańska, Piotr A. Dybczyński, Małgorzata Królikowska
Since 1950 when Oort published his paper on the structure of the cloud of comets it is believed that stars passing near this hypothetical cometary reservoir play an important role…
Kruger 60 as a home system for 2I/Borisov -- a case study
Piotr A. Dybczyński, Małgorzata Królikowska, Rita Wysoczańska
For the second discovered interstellar comet 2I/Borisov we searched for a candidate for its home system. We will never be sure which star or stellar system does this comet come fro…
Have we missed an interstellar comet four years ago?
Piotr A. Dybczyński, Małgorzata Królikowska
New orbit for C/2014 W10 PANSTARRS is obtained. High original eccentricity of e = 1.65 might suggest an interstellar origin of this comet. The probable reasons for missing this pos…
On the dynamical history of the interstellar object 'Oumuamua?
Piotr A. Dybczyński, Małgorzata Królikowska
1I/2017 U1 'Oumuamua is the first interstellar object recorded inside the Solar System. We try to answer the main question: where does it come from? To this aim we searched for clo…
Oort spike comets with large perihelion distances
Małgorzata Królikowska, Piotr A. Dybczyński
The complete sample of large-perihelion nearly-parabolic comets discovered during the period 1901-2010 is studied starting from their orbit determination. Next, an orbital evolutio…
New orbit recalculations of comet C/1890 F1 Brooks and its dynamical evolution
Małgorzata Królikowska, Piotr A. Dybczyński
C/1890 F1 Brooks belongs to a group of nineteen comets used by Jan Oort to support his famous hypothesis on the existence of a spherical cloud containing hundreds of billions of co…
On the accuracy of close stellar approaches determination
Piotr A. Dybczyński, Filip Berski
The aim of this paper is to demonstrate the accuracy of our knowledge of close stellar passage distances in the pre-GAIA era.We used the most precise astrometric and kinematic data…
Near-parabolic comets observed in 2006-2010. II. Their past and future motion under the influence of the Galaxy field and known nearby stars
Piotr A. Dybczyński, Małgorzata Królikowska
Here, we continue this research with a detailed study of their past and future motion during previous and next orbital periods under the perturbing action of our Galactic environme…
Where do long-period comets come from? Moving through Jupiter-Saturn barrier
Piotr A. Dybczyński, Małgorzata Królikowska
Past and future dynamical evolution of all 64 long period comets having 1/aori< 1\times10-4 au-1 and qosc > 3.0 au and discovered after 1970 is studied. For all of them we obtained…