RAZVOJ ALGORITMA ZA ISPITIVANJE PRIPADNOSTI ASTEROIDA FAMILIJAMA

eBiblioteka

 
 

RAZVOJ ALGORITMA ZA ISPITIVANJE PRIPADNOSTI ASTEROIDA FAMILIJAMA

Show simple item record

dc.contributor.advisor Novaković, Bojan
dc.contributor.author Radović, Viktor
dc.date.accessioned 2017-10-25T13:20:14Z
dc.date.available 2017-10-25T13:20:14Z
dc.date.issued 2017
dc.identifier.uri http://hdl.handle.net/123456789/4504
dc.description.abstract The main goal of this dissertation is improvement of an approach for identi- cation of the members of asteroid families, based on the hierarchical clustering method. An additional step is introduced in order to reduce a so-called chaining e ect. The introduced algorithm consists of four main steps. In the rst step, the hierarchical clustering method is applied to the initial catalogue of proper elements in order to obtain a preliminary list of family members. In the second step, using available physical properties, and based upon the de ned criteria, the interlopers are identi ed. In the third step, objects identi ed as interlopers in the second step, are excluded from the initial catalogue of proper orbital elements, producing a modi ed catalogue. Finally, in the fourth step, the HCM analysis is performed again, but this time using the modi ed catalogue of proper elements. It is shown that in this way a number of potential interlopers among family members is signi cantly reduced. Moreover, an on-line based portal (Asteroids Families Portal; AFP) to apply this procedure is developed, and is freely available to all interested researchers. The second goal of the dissertation is to determine the limitations of the backward integration method, used for estimation of ages of young asteroid families. This aim is achieved through numerical simulations of the evolution of a ctitious family. By determining instants of secular angles i $ clustering, a linear relationship is found between the depth of a clustering and the age of a family. According to the obtained results, the backward integration method could be successfully applied to families not older than 18 Myrs. en_US
dc.description.provenance Submitted by Slavisha Milisavljevic (slavisha) on 2017-10-25T13:20:14Z No. of bitstreams: 1 Radovic_teza.pdf: 22329370 bytes, checksum: 580a73c62b88a825dcbc097c2798cb3c (MD5) en
dc.description.provenance Made available in DSpace on 2017-10-25T13:20:14Z (GMT). No. of bitstreams: 1 Radovic_teza.pdf: 22329370 bytes, checksum: 580a73c62b88a825dcbc097c2798cb3c (MD5) Previous issue date: 2017 en
dc.language.iso sr en_US
dc.publisher Beograd en_US
dc.title RAZVOJ ALGORITMA ZA ISPITIVANJE PRIPADNOSTI ASTEROIDA FAMILIJAMA en_US
mf.author.birth-date 1985-11-11
mf.author.birth-place Beograd en_US
mf.author.birth-country Srbija en_US
mf.author.residence-state Srbija en_US
mf.author.citizenship Srpsko en_US
mf.author.nationality Srbin en_US
mf.subject.area Astronomy en_US
mf.subject.keywords asteroids, dynamics, numerical methods en_US
mf.subject.subarea Astronomy en_US
mf.contributor.committee Novaković, Bojan
mf.contributor.committee Knežević, Zoran
mf.contributor.committee Marčeta, Dušan
mf.university.faculty Mathematical Faculty en_US
mf.document.pages 165 en_US
mf.document.location Beograd en_US
mf.document.genealogy-project No en_US
mf.university Belgrade University en_US

Files in this item

Files Size Format View
Radovic_teza.pdf 22.32Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record