Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Dybczyński, Piotr A."'
Autor:
Dybczyński, Piotr A., Królikowska, Małgorzata, Bartczak, Przemysław, Podlewska-Gaca, Edyta, Kamiński, Krzysztof, Tokarek, Jakub, Langner, Krzysztof, de Bruijne, Jos
Publikováno v:
A&A 685, A171 (2024)
In the latest Gaia third data release one can find extremely small proper motion components for the star HD 7977. This, together with the radial velocity measurement lead to the conclusion that this star passed very close to the Sun in the recent pas
Externí odkaz:
http://arxiv.org/abs/2312.11124
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 Kr\'olikowska & Dybczy\'nski (2020). Currently, the CODE Catalogue offers ri
Externí odkaz:
http://arxiv.org/abs/2311.04063
Autor:
Dybczyński, Piotr A., Berski, Filip, Tokarek, Jakub, Podlewska-Gaca, Edyta, Langner, Krzysztof, Bartczak, Przemysław
Publikováno v:
A&A 664, A123 (2022)
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 systems that may perturb a long-period comet motion. We used the minima
Externí odkaz:
http://arxiv.org/abs/2206.11047
Publikováno v:
A&A 660, A100 (2022)
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 similar objects, including C/2017K2 PanSTARRS. Another peculiarity of the
Externí odkaz:
http://arxiv.org/abs/2112.15353
Publikováno v:
A&A 657, A65 (2022)
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 stellar perturbations and the overall Galactic potential. Aims. Our aim is t
Externí odkaz:
http://arxiv.org/abs/2109.07549
Publikováno v:
A&A 640, A97 (2020)
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 containing cometary orbits in five stages of their dynamical evolution, cover
Externí odkaz:
http://arxiv.org/abs/2005.09698
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 be responsible for influencing the dynamical history of long period c
Externí odkaz:
http://arxiv.org/abs/2003.02069
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 in the dynamical evolution of long period comets and injecting them in
Externí odkaz:
http://arxiv.org/abs/1911.01735
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 from but obtaining a very small relative velocity and a promisingly small
Externí odkaz:
http://arxiv.org/abs/1909.10952
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 LPCs discovered over the 1801-2017 period including
Externí odkaz:
http://arxiv.org/abs/1901.01722