Highlights of Science by GRAPE

Note: This is quite preliminary and yet to be completed

The existence of gravothermal oscillations in N-body systems has been demonstrated on the GRAPE-4 by Makino (1996).
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.
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).
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)