##
Unigrid Excision Results

### (May 2001)

###

__Merger__

#### equal mass, v=0.05 boosted scalar field initial data

scalar field: phi_bf_05.mpg (note that a variable colour scale is used)

Psi: psi_bf_05.mpg

Newman-Penrose scalar Psi4: psi4_bf_05.mpg,
sampled waveform: psi4_bf.eps
(id file: id_bh_bf_05)

Psi4 from v=0.1 scalar field boost for comparison (shorter run time):
psi4_bf_1.mpg

Note: I used M=8 for to define the time/coordinate scale. However at the resolution
at which these results were obtained this number is fairly uncertain, and there
is also some mass loss due to dissipation.

old merger page

excision in spherical symmetry

__Prolate scalar field collapse__

Scalar field, visualized with different color/height mappings:

sf_cyl2_phi_cm1.mpg

sf_cyl2_phi_cm2.mpg

sf_cyl2_phi_cm3.mpg
Older mpegs, from partially completed run:

scalar field: sf_cyl2_phi.mpg

Psi: sf_cyl2_psi.mpg

Psi4: sf_cyl2_psi4.mpg

Apparent horizon coordinate shape (reflection about z=0): sf_cyl2_AH.mpg

(dissipation tends to cause mass loss, and hence the
horizon starts to shrink a bit after the initial accretion of matter.)

(id file: id_bh_sf_cyl2)

Notes: I used M=5 to scale the coordinates (though in the AH mpeg the spatial coordinates
aren't scaled). The animations for psi4 (including mergers) were truncated a
few grid-points away from the rho_max boundary, to avoid the 'mess' at the outer
boundary from obscuring the animation interior (though luckily for the most part this
stuff does not propagate inwards)