The intrinsic shape and dynamical structure of the bulges of lenticular galaxies

L. Costantin; E.M. Corsini; Jairo Mendez Abreu; E.D. Bontà; L. Morelli; A. Pizzella

doi:10.1088/1742-6596/566/1/012009

The intrinsic shape and dynamical structure of the bulges of lenticular galaxies

L. Costantin, E.M. Corsini, Jairo Mendez Abreu, E.D. Bontà, L. Morelli, A. Pizzella

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Several scenarios have been proposed to account for the formation and evolution of galactic bulges and to explain the variety of their observed properties. Both the intrinsic shape and dynamical structure of bulges depend on the mechanisms and timescales of their formation. We are deriving the intrinsic axial ratios of the bulges of a sample of unbarred lenticular galaxies to look for a possible relationship with their known orbital structure. Preliminary results show that the orbits of stars of the triaxial bulge of NGC 4476 are more anisotropic than those in the axisymmetric bulge of NGC 4249 hinting at a different formation process.

Original language	English
Article number	012009
Journal	Journal of Physics: Conference Series
Volume	566
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/566/1/012009
Publication status	Published - 12 Dec 2014
Event	5th Young Researcher Meeting - Trieste, United Kingdom Duration: 14 Jul 2014 → 15 Jul 2014

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10.1088/1742-6596/566/1/012009

Abreu_2015_JoPCS_TheIntrinsic_CC
Copyright 2014, The Authors. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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Starting Grant - SEDmorph: Starting Grant 2012 SEDMorph
Wild, V. (PI)
European Research Council
1/09/12 → 31/01/18
Project: Standard

Cite this

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title = "The intrinsic shape and dynamical structure of the bulges of lenticular galaxies",

abstract = "Several scenarios have been proposed to account for the formation and evolution of galactic bulges and to explain the variety of their observed properties. Both the intrinsic shape and dynamical structure of bulges depend on the mechanisms and timescales of their formation. We are deriving the intrinsic axial ratios of the bulges of a sample of unbarred lenticular galaxies to look for a possible relationship with their known orbital structure. Preliminary results show that the orbits of stars of the triaxial bulge of NGC 4476 are more anisotropic than those in the axisymmetric bulge of NGC 4249 hinting at a different formation process.",

author = "L. Costantin and E.M. Corsini and {Mendez Abreu}, Jairo and E.D. Bont{\`a} and L. Morelli and A. Pizzella",

note = "This work was supported by Padua University through grants 60A02-5052/11, 60A02-4807/12, 60A02-5857/13, and CPDA133894. J.M.A. acknowledges support from the European Research Council Starting Grant (SEDmorph; P.I. V. Wild). L.M. received financial support from Padua University grant CPS0204.; 5th Young Researcher Meeting ; Conference date: 14-07-2014 Through 15-07-2014",

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doi = "10.1088/1742-6596/566/1/012009",

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T1 - The intrinsic shape and dynamical structure of the bulges of lenticular galaxies

AU - Costantin, L.

AU - Corsini, E.M.

AU - Mendez Abreu, Jairo

AU - Bontà, E.D.

AU - Morelli, L.

AU - Pizzella, A.

N1 - This work was supported by Padua University through grants 60A02-5052/11, 60A02-4807/12, 60A02-5857/13, and CPDA133894. J.M.A. acknowledges support from the European Research Council Starting Grant (SEDmorph; P.I. V. Wild). L.M. received financial support from Padua University grant CPS0204.

PY - 2014/12/12

Y1 - 2014/12/12

N2 - Several scenarios have been proposed to account for the formation and evolution of galactic bulges and to explain the variety of their observed properties. Both the intrinsic shape and dynamical structure of bulges depend on the mechanisms and timescales of their formation. We are deriving the intrinsic axial ratios of the bulges of a sample of unbarred lenticular galaxies to look for a possible relationship with their known orbital structure. Preliminary results show that the orbits of stars of the triaxial bulge of NGC 4476 are more anisotropic than those in the axisymmetric bulge of NGC 4249 hinting at a different formation process.

AB - Several scenarios have been proposed to account for the formation and evolution of galactic bulges and to explain the variety of their observed properties. Both the intrinsic shape and dynamical structure of bulges depend on the mechanisms and timescales of their formation. We are deriving the intrinsic axial ratios of the bulges of a sample of unbarred lenticular galaxies to look for a possible relationship with their known orbital structure. Preliminary results show that the orbits of stars of the triaxial bulge of NGC 4476 are more anisotropic than those in the axisymmetric bulge of NGC 4249 hinting at a different formation process.

U2 - 10.1088/1742-6596/566/1/012009

DO - 10.1088/1742-6596/566/1/012009

M3 - Article

AN - SCOPUS:84920053907

SN - 1742-6588

VL - 566

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012009

T2 - 5th Young Researcher Meeting

Y2 - 14 July 2014 through 15 July 2014

ER -

The intrinsic shape and dynamical structure of the bulges of lenticular galaxies

Abstract

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Projects

Starting Grant - SEDmorph: Starting Grant 2012 SEDMorph

Cite this