Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii
We carry out three dimensional radiation hydrodynamical simulations of gravitationally unstable discs using to explore the movement of mass in a disc following its fragmentation. Compared to a more quiescent state before it fragments, the radial velocity of the gas increases by up to a factor of...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2013-04-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20134607003 |
| _version_ | 1818385491299401728 |
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| author | Meru Farzana |
| author_facet | Meru Farzana |
| author_sort | Meru Farzana |
| collection | DOAJ |
| description | We carry out three dimensional radiation hydrodynamical simulations of gravitationally unstable discs using to explore the movement of mass in a disc following its fragmentation. Compared to a more quiescent state before it fragments, the radial velocity of the gas increases by up to a factor of ≈ 2 – 3 after fragmentation. While the mass movement occurs both inwards and outwards, the inwards motion can cause the inner spirals to be suciently dense that they may become unstable and potentially fragment. Consequently, the dynamical behaviour of fragmented discs may cause subsequent fragmentation at smaller radii after an initial fragment has formed in the outer disc. |
| first_indexed | 2024-12-14T03:39:00Z |
| format | Article |
| id | doaj.art-66f0949c5b75424ba2b4d01d49121eb6 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-14T03:39:00Z |
| publishDate | 2013-04-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-66f0949c5b75424ba2b4d01d49121eb62022-12-21T23:18:33ZengEDP SciencesEPJ Web of Conferences2100-014X2013-04-01460700310.1051/epjconf/20134607003Triggered fragmentation in gravitationally unstable discs: forming fragments at small radiiMeru FarzanaWe carry out three dimensional radiation hydrodynamical simulations of gravitationally unstable discs using to explore the movement of mass in a disc following its fragmentation. Compared to a more quiescent state before it fragments, the radial velocity of the gas increases by up to a factor of ≈ 2 – 3 after fragmentation. While the mass movement occurs both inwards and outwards, the inwards motion can cause the inner spirals to be suciently dense that they may become unstable and potentially fragment. Consequently, the dynamical behaviour of fragmented discs may cause subsequent fragmentation at smaller radii after an initial fragment has formed in the outer disc.http://dx.doi.org/10.1051/epjconf/20134607003 |
| spellingShingle | Meru Farzana Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii EPJ Web of Conferences |
| title | Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii |
| title_full | Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii |
| title_fullStr | Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii |
| title_full_unstemmed | Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii |
| title_short | Triggered fragmentation in gravitationally unstable discs: forming fragments at small radii |
| title_sort | triggered fragmentation in gravitationally unstable discs forming fragments at small radii |
| url | http://dx.doi.org/10.1051/epjconf/20134607003 |
| work_keys_str_mv | AT merufarzana triggeredfragmentationingravitationallyunstablediscsformingfragmentsatsmallradii |