PROFILE(1)TIPSY COMMANDSPROFILE(1)

profile - write physical profiles as a funtion of radius

profilebox-numbercenter-box-numberparticleprojectionbinningbin-numberfilenameminimum_radius

profileis a command that produces a file of name,file-name,that contains various physical profiles as a func- tion of radius for particles of typeparticlein box,box-number.If the boxbox-numberorcenter-box-numberare not loaded an error is generated. Boxes can be loaded using either themakebox,setbox,orsetspherecommands. The center of the radial distribution is taken to be the center of mass of the particles of the typeparticlein boxcenter-box-number.If the string "pot" is given instead of a box number for the argumentcenter-box-numberthe particle in boxboxwith the lowest potential energy is used as the center of the radial bins. Theprojectionargument refers to the shape of the bins and thebinningargument refers to how the particles are binned, either linearly or log in radius. There arebin-numberbins distributed equally in either radius or log radius betweenminimum_radiusand the size of boxbox-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). Ifparticleis eithergas,baryon,mark,unmark,orallfour 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. Ifparticleis eitherstar,baryon,mark,unmark,orallan additional column containing the stellar luminosity in the JohnsonVbandis added. This is calculated using the ages of the star particles as in Katz (Ap.J. 391: 502, 1992).

ParticleThe possible choices forparticleare:allUse the all the particles in boxbox-number.Adds columns containing the mean mass weighted gas density, mass weighted gas temperature, and mass weighted gas pressure.markUse the marked particles in boxbox-number.Adds columns containing the mean mass weighted gas density, mass weighted gas temperature, and mass weighted gas pressure.unmarkUse the unmarked particles in boxbox-number.Adds columns containing the mean mass weighted gas density, mass weighted gas temperature, and mass weighted gas pressure.baryonUse the gas and star particles in boxbox-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.darkUse only the dark matter particles in boxbox-numbergasUse only the gas particles in boxbox-number.Adds columns containing the mean mass weighted gas density, mass weighted gas temperature, and mass weighted gas pressure.starUse only the star particles in boxbox-number.Adds a column containing the stellar luminosity.ProjectionThe possible choices forprojectionare:sphereMake spherical bins centered on the center of mass of the particles of typeparticlein boxcenter-box-number.The option can be abbrevi- atedsph.cylinderMake cylindrical bins centered on the center of mass of the particles of typeparticlein boxcenter-box-number.The radii of the cylinders are oriented perpendicular to the angular momen- tum axis of the particles of typeparticlein boxbox-number.The option can be abbreviatedcyl.ellipseMake similar elliptical bins centered on the center of mass of the particles of typeparticlein boxcenter-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 themomentscommand. The option can be abbreviatedell.BinningThe possible choices forbinningare:linMakebin-numberbins spaced equally in radius betweenminimum-radiusand the size of boxbox-numberlogMakebin-numberbins spaced equally in log radius betweenminimum-radiusand the size of boxbox-number

makebox(1),moments(1),rotationcurve(1),setbox(1),set-sphere(1)KQ Release 2.0 22 MARCH 1994PROFILE(1)

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