Large scale characterization of the stellar velocity distribution in the galactic disk

S. Roca-Fàbrega; O. Valenzuela; F. Figueras; M. Romero-Gómez; T. Antoja

doi:10.1051/epjconf/20121905011

Large scale characterization of the stellar velocity distribution in the galactic disk

S. Roca-Fàbrega, O. Valenzuela, F. Figueras, M. Romero-Gómez, T. Antoja

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

Test particle simulations of Milky Way type galactic disks are being conducted to map the evolution of the stellar large scale kinematic response to the bar and spiral structure. Second and third order moments of the velocity distribution function prove to be good indicators of both, the velocity ellipsoid misalignment near the arms and the bar, and the degree of kinematic substructure in the UV plane, that is, the presence of moving groups. A large scale analysis all through the galactic disk allows to establish the kinematic behavior near resonances and the correlation between the kinematic parameters and properties of the non-axisymmetric components, such as its transient nature or its mass overdensity. N-body simulaions are being run in order to test these results in self-consistent models.

Original language	English
Title of host publication	Assembling the Puzzle of the Milky Way
Subtitle of host publication	EPJ Web of Conferences
Editors	C. Reylé, A. Robin, M. Schultheis
Number of pages	3
Volume	19
DOIs	https://doi.org/10.1051/epjconf/20121905011
Publication status	Published - Feb-2012

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title = "Large scale characterization of the stellar velocity distribution in the galactic disk",

abstract = "Test particle simulations of Milky Way type galactic disks are being conducted to map the evolution of the stellar large scale kinematic response to the bar and spiral structure. Second and third order moments of the velocity distribution function prove to be good indicators of both, the velocity ellipsoid misalignment near the arms and the bar, and the degree of kinematic substructure in the UV plane, that is, the presence of moving groups. A large scale analysis all through the galactic disk allows to establish the kinematic behavior near resonances and the correlation between the kinematic parameters and properties of the non-axisymmetric components, such as its transient nature or its mass overdensity. N-body simulaions are being run in order to test these results in self-consistent models.",

author = "S. Roca-F{\`a}brega and O. Valenzuela and F. Figueras and M. Romero-G{\'o}mez and T. Antoja",

note = "M1 - Conference Proceedings",

year = "2012",

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doi = "10.1051/epjconf/20121905011",

language = "English",

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Large scale characterization of the stellar velocity distribution in the galactic disk. / Roca-Fàbrega, S.; Valenzuela, O.; Figueras, F. et al.
Assembling the Puzzle of the Milky Way: EPJ Web of Conferences. ed. / C. Reylé; A. Robin; M. Schultheis. Vol. 19 2012. 05011.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - Large scale characterization of the stellar velocity distribution in the galactic disk

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AU - Figueras, F.

AU - Romero-Gómez, M.

AU - Antoja, T.

N1 - M1 - Conference Proceedings

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N2 - Test particle simulations of Milky Way type galactic disks are being conducted to map the evolution of the stellar large scale kinematic response to the bar and spiral structure. Second and third order moments of the velocity distribution function prove to be good indicators of both, the velocity ellipsoid misalignment near the arms and the bar, and the degree of kinematic substructure in the UV plane, that is, the presence of moving groups. A large scale analysis all through the galactic disk allows to establish the kinematic behavior near resonances and the correlation between the kinematic parameters and properties of the non-axisymmetric components, such as its transient nature or its mass overdensity. N-body simulaions are being run in order to test these results in self-consistent models.

AB - Test particle simulations of Milky Way type galactic disks are being conducted to map the evolution of the stellar large scale kinematic response to the bar and spiral structure. Second and third order moments of the velocity distribution function prove to be good indicators of both, the velocity ellipsoid misalignment near the arms and the bar, and the degree of kinematic substructure in the UV plane, that is, the presence of moving groups. A large scale analysis all through the galactic disk allows to establish the kinematic behavior near resonances and the correlation between the kinematic parameters and properties of the non-axisymmetric components, such as its transient nature or its mass overdensity. N-body simulaions are being run in order to test these results in self-consistent models.

U2 - 10.1051/epjconf/20121905011

DO - 10.1051/epjconf/20121905011

M3 - Conference contribution

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BT - Assembling the Puzzle of the Milky Way

A2 - Reylé, C.

A2 - Robin, A.

A2 - Schultheis, M.

ER -

Large scale characterization of the stellar velocity distribution in the galactic disk

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