Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-23T11:10:43.205Z Has data issue: false hasContentIssue false
  • English
  • Français

Constraining the internal dynamics of stellar systems using the NMAGIC particle code

Published online by Cambridge University Press:  01 July 2007

Flavio De Lorenzi ,
Ortwin Gerhard ,
Victor P. Debattista ,
Niranjan Sambhus ,
L. Coccato ,
M. Arnaboldi ,
M. Capaccioli ,
N. G. Douglas ,
K. C. Freeman  and
K. Kuijken
...Show all authors
Flavio De Lorenzi*
Affiliation:
Max-Planck-Institut für Ex. Physik, Giessenbachstraße, D-85741 Garching, Germany Astron. Institut, Universität Basel, Venusstrasse 7, Binningen, CH-4102, Switzerland
Ortwin Gerhard
Affiliation:
Max-Planck-Institut für Ex. Physik, Giessenbachstraße, D-85741 Garching, Germany
Victor P. Debattista
Affiliation:
Centre for Astrophysics, University of Central Lancashire, Preston, UK PR1 2HE
Niranjan Sambhus
Affiliation:
Astron. Institut, Universität Basel, Venusstrasse 7, Binningen, CH-4102, Switzerland
L. Coccato
Affiliation:
Max-Planck-Institut für Ex. Physik, Giessenbachstraße, D-85741 Garching, Germany Kapteyn Astronomical Institute, University of Groningen, the Netherlands
M. Arnaboldi
Affiliation:
ESO, Karl-Schwarzschild-Str. 2, D-85748 GarchingGermany INAF, Observatory of Turin, Strada Osservatorio 20, 10025 Pino Torinese, Italy
M. Capaccioli
Affiliation:
Osservatorio di Capodimonte, Naples, Italy
N. G. Douglas
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, the Netherlands
K. C. Freeman
Affiliation:
Research School of Astronomy & Astrophysics, ANU, Canberra, Australia
K. Kuijken
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, the Netherlands University of Leiden, The Netherlands
M. R. Merrifield
Affiliation:
School of Physics & Astronomy, University of Nottingham, UK
N. R. Napolitano
Affiliation:
Osservatorio di Capodimonte, Naples, Italy
E. Noordermeer
Affiliation:
School of Physics & Astronomy, University of Nottingham, UK
A. J. Romanowsky
Affiliation:
Departamento de Física, Universidad de Concepsión, Casilla 160-C, Concepción, Chile
*
†email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

NMAGIC is a parallel implementation of our made-to-measure (χ2M2M) algorithm for constructing N-particle models of stellar systems from observational data, which extends earlier ideas by Syer & Tremaine (1996). The χ2M2M algorithm properly accounts for observational errors, is flexible, and can be applied to various systems and geometries. We show its ability to reproduce the internal dynamics of an oblate isotropic rotator model and report on the modeling of the dark matter (DM) halo of NGC 3379 combining SAURON and PN.S kinematic data. The χ2M2M algorithm is practical, reliable and can be applied to various dynamical systems without symmetry restrictions. We conclude that χ2M2M holds great promise for unraveling the internal dynamics of bulges.

Keywords

galaxies: elliptical and lenticularcDgalaxies: kinematics and dynamicsgalaxies: individual: NGC 3379methods: numericalmethods: n-body simulations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S245: Formation and Evolution of Galaxy Bulges , July 2007 , pp. 27 - 30
Copyright
Copyright © International Astronomical Union 2008

References

Bissantz, N., Debattista, V. P., & Gerhard, O. 2004, ApJ 601, L155CrossRefGoogle Scholar
Capaccioli, M., Held, E. V., Lorenz, H., & Vietri, M. 1990, AJ 99, 1813CrossRefGoogle Scholar
Debattista, V. P. & Sellwood, J. A. 2000, ApJ 543, 704CrossRefGoogle Scholar
Dehnen, W. & Gerhard, O. E. 1994, MNRAS 268, 1019CrossRefGoogle Scholar
De Lorenzi, F., Debattista, V. P., Gerhard, O., & Sambhus, N. 2007, MNRAS 376, 71CrossRefGoogle Scholar
De Lorenzi, F., Gerhard, O., Saglia, R. P., Sambhus, N., Debattista, V. P., Panella, M., & Méndez, R. H. 2008, submitted to MNRASGoogle Scholar
Douglas, N. G., Napolitano, N. R., Romanowsky, A. J., Coccato, L., Kuijken, K., Merrifield, M. R., Arnaboldi, M., Gerhard, O., Freeman, K. C., Merrett, H. R., Noordermeer, E., & Capaccioli, M. 2007, ApJ 664, 257CrossRefGoogle Scholar
Gebhardt, K., Richstone, D., Kormendy, J., Lauer, T. R., Ajhar, E. A., Bender, R., Dressler, A., Faber, S. M., Grillmair, C., Magorrian, J., & Tremaine, S. 2000, AJ 119, 1157CrossRefGoogle Scholar
Magorrian, J. & Binney, J. 1994, MNRAS 271, 949CrossRefGoogle Scholar
Méndez, R. H., Riffeser, A., Kudritzki, R.-P., Matthias, M., Freeman, K. C., Arnaboldi, M., Capaccioli, M., & Gerhard, O. E. 2001, ApJ 563, 135CrossRefGoogle Scholar
Romanowsky, A. J., Douglas, N. G., Arnaboldi, M., Kuijken, K., Merrifield, M. R., Napolitano, N. R., Capaccioli, M., & Freeman, K. C. 2003, Science 301, 1696CrossRefGoogle Scholar
Shapiro, K. L., Cappellari, M., de Zeeuw, T., McDermid, R. M., Gebhardt, K., van den Bosch, R. C. E., & Statler, T. S. 2006, MNRAS 370, 559CrossRefGoogle Scholar
Statler, T. S. 2001, AJ 121, 244CrossRefGoogle Scholar
Syer, D. & Tremaine, S. 1996, MNRAS 282, 223CrossRefGoogle Scholar