Highlights of Science by GRAPE
Copyright 1999 Piet Hut & Jun Makino
Note: This is quite preliminary and yet to be completed
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The existence of gravothermal oscillations in N-body systems has been
demonstrated on the GRAPE-4 by
Makino (1996).
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A comparison between N-body simulations, up to N=32k, and
Fokker-Planck calculations, by
Portegies Zwart et. al. (1998)
showed unexpectedly large differences between the two methods.
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In future GRAPE version, Smooth Particle Hydrodynamics could be implemented
in hardware, leading to an additional speed-up of one or two orders of
magnitude, as discussed by
Hut et al. (1997).
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Cross sections for galaxy-galaxy scattering were obtained, through 500
scattering simulations on the GRAPE-3A, by
Makino and Hut (1997)
- R. Spurzem, H. Baumgardt
A parallel implementation of
an Aarseth N-body integrator on general and special purpose supercomputers
(176 kb ps.gz)
in preparation, revised version for MNRAS
- Ch. Theis, R. Spurzem
On the evolution of shape in N-body simulations (230 kb ps.gz)
Astron. Astroph. 341, p. 361, 1999
- C. Einsel, R. Spurzem
Dynamical evolution of rotating stellar systems:
I. Pre-collapse, equal mass systems (304kb ps.gz)
Mon. Notices Royal astron. Soc. 302, p. 81, 1999
- R. Spurzem
Astrophysical N-body simulations: algorithms and challenges
(54 kb ps.gz)
to appear in Proc. Int. Symp. on Supercomputing - New Horizon of Comp. Science,
Tokyo, Japan, Sept. 1997, ed T. Ebisuzaki, Kluwer, Dordrecht.
- D.C. Heggie, M. Giersz, R. Spurzem, K. Takahashi
Dynamical simulations: methods and comparisons (105 kb ps.gz)
to appear in Highlights of Astronomy Vol. 11 ed. Johannes Andersen, Kluwer, Dordrecht.
- R. Spurzem
Fluid techniques
and evolution of anisotropy (404 kb ps.gz)
in ``Dynamical Evolution of Star Clusters'', IAU Symp. No. 174, eds. P. Hut & J. Makino, Kluwer, Dordrecht, p. 111
- R. Spurzem, S. J. Aarseth
Direct
collisional simulation of 10000 particles past core collapse (1.17 Mb ps.gz)
Mon. Notices Royal astron. Soc. 282, p. 19, 1996
- R. Spurzem, M. Giersz
A
stochastic Monte-Carlo aproach to model real star cluster evolution
(658kb ps.gz)
Mon. Notices Royal astron. Soc. 283, p. 805, 1996
- R. Spurzem, K. Takahashi
Comparison
between Fokker-Planck and gaseous models of star clusters in the multi-mass
case revisited (579 kb ps.gz)
Mon. Notices Royal astron. Soc. 272, p. 772, 1995
- Steinmetz, M. & Navarro, J.F.
The cosmological origin of the Tully-Fisher relation
(ApJ 513, in press)
- Frenk, C.S., et al.
The Santa Barbara cluster comparison project: a test of
cosmological hydrodynamics codes
(submitted to ApJ)
- Andreas Huss, Bhuvnesh Jain & Matthias Steinmetz
How universal are the density profiles of dark halos?
(ApJ, in press)
- Matthias Steinmetz
Model Predictions for Clustering and Morphologies at HDF depths
(to appear in Proc. of the STScI May Symposium (May 6-9, 1997) "The Hubble
Deep Field")
- Andreas Huss, Bhuvnesh Jain & Matthias Steinmetz
The Formation and
Evolution of Clusters of Galaxies in Different Cosmogonies
(MNRAS, in press and preprint MPA 1013)
- Gertrud Contardo, Matthias Steinmetz & Uta Fritze-von Alvensleben
Photometric Evolution of Galaxies in Cosmological Scenarios
(ApJ 507, 497)
[PDF-file]
- Martin G. Haehnelt & Matthias Steinmetz:
Probing the thermal history of the intergalactic medium with
Ly-alpha absorption lines
(1998, MNRAS 298, L21-L24)
[PDF-file]
- Martin G. Haehnelt, Matthias Steinmetz & Michael Rauch:
Damped Lyman Alpha Absorbers at High Redshift - Large Disks or Galactic
Building Blocks?
(1998, ApJ 495, 647-658)
[PDF-file]
- M. Steinmetz & S.D.M. White: Two-body Heating in Numerical Galaxy
Formation Experiments (1997, MNRAS 288, 545-550)
- Michael Rauch, Martin G. Haehnelt & Matthias Steinmetz: QSO Metal
Absorption Systems at High Redshift and the Signature of Hierarchical Galaxy
Formation (1997, ApJ 481, 601-624)
[PDF-file]
- Julio Navarro & Matthias Steinmetz: The Effects of a Photoionizing
Ultraviolet Background on the Formation of Disk Galaxies (1997, ApJ 478,
13-28)
[PDF-file]
- Matthias Steinmetz:
GRAPESPH: Cosmological SPH simulations
with the special purpose hardware GRAPE
(1996, MNRAS 278, 1005)