53 citations · 255 across the 14 of their papers we have counts for
14 papers
Orbital Motion and History of Sungrazing Comet C/2026 A1 (MAPS)
Zdenek Sekanina, Malgorzata Krolikowska
We report results of our extensive computations of the orbital motion of comet C/2026 A1, including its integration back to the fourth century and parallel integration of 1000 virt…
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…
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…
Discovery statistics and the 1/a-distribution of long-period comets detected over the 1801-2017 period
Małgorzata Królikowska, Piotr A. Dybczyński
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…
Note on the dynamical evolution of C/2017 K2 PANSTARRS
Małgorzata Królikowska, Piotr A. Dybczyński
(Abreviated) Comet C/2017 K2 PANSTARRS drew attention to its activity already at a time of its discovery in May 2017 when it was about 16 au from the Sun. This Oort spike comet wil…
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…
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…
Comet C/2013 A1 Siding Spring. How treatment of data and NG effects can change our predictions about close encounters with Mars ?
Paweł Wajer, Małgorzata Królikowska
We show that the estimates of close encounter of this comet with Mars depend on data treatment. Using the data taken in the two-year period, we derived that the comet will miss Mar…
Behavior of Jupiter Non-Trojan Co-Orbitals
Paweł Wajer, Małgorzata Królikowska
Searching for the non-Trojan Jupiter co-orbitals we have numerically integrated orbits of 3\,160 asteroids and 24 comets discovered by October 2010 and situated within and close to…
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…
Where do long-period comets come from? 26 comets from the non-gravitational Oort spike
M. Królikowska, P. A. Dybczyński
The apparent source region (or regions) of long-period comets as well as the definition of the dynamically new comet are still open questions.The aim of this investigation is to lo…