PROFILE(1) TIPSY COMMANDS PROFILE(1)
NAME
profile - write physical profiles as a funtion of radius
SYNOPSIS
profile box-number center-box-number particle projection
binning bin-number filename minimum_radius
DESCRIPTION
profile is a command that produces a file of name, file-
name, that contains various physical profiles as a func-
tion of radius for particles of type particle in box, box-
number. If the box box-number or center-box-number are
not loaded an error is generated. Boxes can be loaded
using either the makebox, setbox, or setsphere commands.
The center of the radial distribution is taken to be the
center of mass of the particles of the type particle in
box center-box-number. If the string "pot" is given
instead of a box number for the argument center-box-number
the particle in box box with the lowest potential energy
is used as the center of the radial bins.
The projection argument refers to the shape of the bins
and the binning argument refers to how the particles are
binned, either linearly or log in radius. There are bin-
number bins distributed equally in either radius or log
radius between minimum_radius and the size of box box-num-
ber.
The output file has the following columns: radius, number
in bin, density, cumulative mass (M(<r)), circular veloc-
ity (sqrt(M(<r)/r)), radial velocity, radial velocity dis-
persion, tangential velocity, tangential velocity disper-
sion, specific angular momentum (j),j_theta, j_phi. The
j_theta and j_phi angles specify the direction of the spe-
cific angular momentum vector (in degrees). If particle
is either gas, baryon, mark, unmark, or all four addi-
tional columns containing the mean mass weighted gas den-
sity, mass weighted gas temperature, mass weighted gas
pressure, and mass weighted gas entropy are added. If
particle is either star, baryon, mark, unmark, or all an
additional column containing the stellar luminosity in the
Johnson V band is added. This is calculated using the
ages of the star particles as in Katz (Ap.J. 391: 502,
1992).
OPTIONS
Particle
The possible choices for particle are:
all
Use the all the particles in box box-number.
Adds columns containing the mean mass weighted
gas density, mass weighted gas temperature, and
mass weighted gas pressure.
mark
Use the marked particles in box box-number.
Adds columns containing the mean mass weighted
gas density, mass weighted gas temperature, and
mass weighted gas pressure.
unmark
Use the unmarked particles in box box-number.
Adds columns containing the mean mass weighted
gas density, mass weighted gas temperature, and
mass weighted gas pressure.
baryon
Use the gas and star particles in box box-num-
ber. Adds columns containing the mean mass
weighted gas density, mass weighted gas tempera-
ture, and mass weighted gas pressure, and stel-
lar luminosity.
dark
Use only the dark matter particles in box box-
number
gas
Use only the gas particles in box box-number.
Adds columns containing the mean mass weighted
gas density, mass weighted gas temperature, and
mass weighted gas pressure.
star
Use only the star particles in box box-number.
Adds a column containing the stellar luminosity.
Projection
The possible choices for projection are:
sphere
Make spherical bins centered on the center of
mass of the particles of type particle in box
center-box-number. The option can be abbrevi-
ated sph.
cylinder
Make cylindrical bins centered on the center of
mass of the particles of type particle in box
center-box-number. The radii of the cylinders
are oriented perpendicular to the angular momen-
tum axis of the particles of type particle in
box box-number. The option can be abbreviated
cyl.
ellipse
Make similar elliptical bins centered on the
center of mass of the particles of type particle
in box center-box-number. When this option is
used you will be prompted for the radius where
the shape and orientation of the ellipses will
be determined. This is determined as in the
moments command. The option can be abbreviated
ell.
Binning
The possible choices for binning are:
lin
Make bin-number bins spaced equally in radius
between minimum-radius and the size of box box-
number
log
Make bin-number bins spaced equally in log
radius between minimum-radius and the size of
box box-number
SEE ALSO
makebox(1), moments(1), rotationcurve(1), setbox(1), set-
sphere(1)
KQ Release 2.0 22 MARCH 1994 PROFILE(1)
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