Asteroid pairs: A complex picture

0511645 - ASÚ 2020 RIV US eng J - Článek v odborném periodiku
Pravec, Petr - Fatka, Petr - Vokrouhlický, D. - Scheirich, Peter - Ďurech, J. - Scheeres, D.J. - Kušnirák, Peter - Hornoch, Kamil - Kučáková, Hana … celkem 50 autorů
Asteroid pairs: A complex picture.
Icarus. Roč. 333, November (2019), s. 429-463. ISSN 0019-1035. E-ISSN 1090-2643
Grant CEP: GA ČR(CZ) GA17-00774S
Institucionální podpora: RVO:67985815
Klíčová slova: asteroids * dynamics * rotation
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 3.516, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.icarus.2019.05.014

We studied a sample of 93 asteroid pairs, i.e., pairs of genetically related asteroids that are on highly similar heliocentric orbits. We estimated times elapsed since separation of pair members (i.e., pair age) that are between 7 x 10(3) yr and a few 10(6) yr. With photometric observations, we derived the rotation periods P-1 for all the primaries (i.e., the larger members of asteroid pairs) and a sample of secondaries (the smaller pair members). We derived the absolute magnitude differences of the studied asteroid pairs that provide their mass ratios q. For a part of the studied pairs, we refined their WISE geometric albedos and collected or estimated their taxonomic classifications. For 17 asteroid pairs, we also determined their pole positions. In two pairs where we obtained the spin poles for both pair components, we saw the same sense of rotation for both components and constrained the angles between their original spin vectors at the time of their separation.
Trvalý link: http://hdl.handle.net/11104/0301879