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* old and bolonia study programme


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Smo znanstveniki dolgočasni?
Andreja Gomboc, 2019, popular article

Found in: osebi
Keywords: znanstveno okolje, znanost, napredek
Published: 06.04.2020; Views: 1577; Downloads: 0
.pdf Fulltext (2,11 MB)

Kot zvezde na nebu
Andreja Gomboc, 2019, popular article

Found in: osebi
Keywords: vesolje, astronomija, zvezda
Published: 06.04.2020; Views: 1757; Downloads: 0
.pdf Fulltext (2,83 MB)

Čigav je moj čas?
Andreja Gomboc, 2019, popular article

Found in: osebi
Keywords: čas, delo, spanje
Published: 06.04.2020; Views: 1574; Downloads: 0
.pdf Fulltext (3,87 MB)

Spomini prekmurske študentke
Andreja Gomboc, 2019, popular article

Found in: osebi
Keywords: Prekmurje, študij, priključitev Prekmurja
Published: 06.04.2020; Views: 1712; Downloads: 0
.pdf Fulltext (2,77 MB)

Vesoljska doba
Andreja Gomboc, 2019, popular article

Found in: osebi
Keywords: astronomija, Zemlja, vesolje
Published: 06.04.2020; Views: 1870; Downloads: 0
.pdf Fulltext (2,86 MB)

GWverse COST action
Andreja Gomboc, published scientific conference contribution abstract (invited lecture)

Found in: osebi
Keywords: gravitacijski valovi, črne luknje, akcije COST
Published: 07.07.2020; Views: 1762; Downloads: 0
.pdf Fulltext (3,09 MB)

Poglejte v zvezde
Andreja Gomboc, 2020, professional article

Found in: osebi
Keywords: astronomija, zvezde, komet Neowise
Published: 28.07.2020; Views: 1690; Downloads: 0
.pdf Fulltext (4,09 MB)

A study of stellar debris dynamics during a tidal disruption event
Aurora Clerici, 2020, doctoral dissertation

Abstract: The number of observed tidal disruption events is increasing rapidly with the advent of new surveys. Thus, it is becoming increasingly important to improve TDE models using different stellar and orbital parameters. We study the dynamical behaviour of tidal disruption events produced by a massive black hole like Sgr A* by changing different initial orbital parameters, taking into account the observed orbits of S stars. Investigating different types of orbits and penetration factors is important since their variations lead to different timescales of the tidal disruption event debris dynamics, making mechanisms such as self-crossing and pancaking act strongly or weakly, thus affecting the circularisation and accretion disk formation. We have performed smoothed particle hydrodynamics simulations. Each simulation consists in modelling the star with $10^5$ particles, and the density profile is described by a polytrope with $\gamma$ = 5/3. The massive black hole is modelled with a generalised post-Newtonian potential, which takes into account relativistic effects of the Schwarzschild space-time. Our analyses find that mass return rate distributions of solar-like stars and S-like stars with same eccentricity have similar durations, but S-like stars have higher mass return rate, as expected due to their larger mass. Regarding debris circularisation, we identify four types of evolution, related to the mechanisms and processes involved during circularisation: in type 1 the debris does not circularise efficiently, hence a disk is not formed or is formed after relatively long time; in type 2 the debris slowly circularises and eventually forms a disk with no debris falling back; in type 3 the debris relatively quickly circularises and forms a disk while there is still debris falling back; finally, in type 4 the debris quickly and efficiently circularises, mainly through self-crossings and shocks, and forms a disk with no debris falling back. Finally, we find that the standard relation of circularisation radius $r_{\rm circ} = 2r_{\rm t}$ holds only for $\beta = 1$ and eccentricities close to parabolic.
Found in: osebi
Keywords: 07.05.Tp Computer modeling and simulation, 95.30.Lz Hydrodynamics, 98.35.Jk Galactic center, bar, circumnuclear matter, and bulge, 98.62.Js Galactic nuclei (including black holes), circumnuclear matter, and bulges, 98.62.Mw Infall, accretion, and accretion disks
Published: 29.09.2020; Views: 2536; Downloads: 71
.pdf Fulltext (37,55 MB)

Meje našega sveta
Andreja Gomboc, 2020, popular article

Found in: osebi
Keywords: vesolje, covid, znanost
Published: 10.12.2020; Views: 1572; Downloads: 11

The prospects of observing Tidal Disruption Events with the Large Synoptic Survey Telescope (LSST)
Andreja Gomboc, Katja Bricman, 2018, published scientific conference contribution abstract

Found in: osebi
Keywords: Tidal disruption events, sky surveys
Published: 04.01.2021; Views: 1505; Downloads: 0
.docx Fulltext (548,11 KB)

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