Software
Please read the following
before downloading and using software from this
page
Analysis of Galaxy Spectra
-
Gauss-Hermite Fourier Fitting Software
- Authors: Roeland van der Marel (1991-1993) and
Marijn Franx (1988-1991)
- Purpose: extract stellar kinematics from galaxy
spectra
- Information:
read this manual
to get started, or
consult the following paper for details:
[R5]
- Availability:
Download
(save to your disk as fourfit.uu; to unpack
issue: csh fourfit.uu)
-
Gauss-Hermite Pixel Fitting Software
- Author: Roeland van der Marel (1992-1994)
- Purpose: extract stellar kinematics from galaxy
spectra
- Information:
read this manual
to get started, or
consult Appendix A of the following paper for details:
[R9]
- Availability: Download
(save to your disk as pixfit.uu; to unpack
issue: csh pixfit.uu)
Stellar Dynamical Models
-
Spherical Anisotropic Jeans Modeling Software
- Author: Roeland van der Marel (1992-1994)
- Purpose: predict the velocity dispersion profile of a
spherical galaxy model with an arbitrary velocity
anisotropy profile.
- Information: I developed programs to solve this
problem in the context of my study of M87, described
in detail in the following paper:
[R9]
- Availability: These programs are not currently
available in an organized form suitable for
distribution. However, feel free to
email me
if you think that I should work on this.
-
Scale-free Modeling Software
- Authors: Roeland van der Marel (1994-1995) and
Jos de Bruijne (1994-1995)
- Purpose: predict intrinsic and projected kinematical
quantities of axisymmetric mass densities
with anisotropic velocity distributions in
spherical potentials. Useful for studying asymptotic
behavior near a black hole or in an isothermal halo.
- Information:
read this manual
to get started, or
consult the following paper for details:
[R15]
- Availability:
Download
(save to your disk as scalefree.uu; to unpack
issue: csh scalefree.uu)
-
Two-integral Jeans Modeling Software
- Authors: Roeland van der Marel (1989-1992) and
James Binney (1985-1989)
- Purpose: interpret the observed kinematics of
(early-type) galaxies with axisymmetric f(E,Lz)
models.
- Information: read this manual
to get started, or
consult the following papers for details:
[R2],
[R4],
[C3],
[R7]
- Availability:
Download
(save to your disk as jeans.uu; to unpack
issue: csh jeans.uu)
-
Other Two-integral Modeling Software
- Authors: Roeland van der Marel (1992-1997),
Wyn Evans (1992), Eddy Qian (1993-1994)
- Purpose: interpret the observed kinematics of
(early-type) galaxies with axisymmetric f(E,Lz)
models.
- Information: I have (co-)developed several other
programs (in addition to those listed above)
to study the properties of axisymmetric
two-integral models.
Consult the following papers for details:
[R8],
[R12],
[R21]
- Availability: These programs are not currently
available in an organized form suitable for
distribution. However, feel free to
email me
if you think that I should work on this.
-
Three-integral Orbit Superposition Software
- Author: Roeland van der Marel (1995-1997), in a
collaboration with Nicolas Cretton, Hans-Walter Rix
and Tim de Zeeuw
- Purpose: predict intrinsic and projected kinematical
quantities of axisymmetric galaxy models with a
fully general dynamical structure.
- Information: read the following paper for details:
[R21]
- Availability: These programs are not currently
available in an organized form suitable for
distribution. However, feel free to
email me
if you think that I should work on this.
Instrument Specific Software
-
HST/FOS ACQ/PEAK target acquisition software
- Author: Roeland van der Marel (1994-1995)
- Purpose: to test acquisition strategies and prepare
observations with the HST/FOS (obsolete since 1997)
- Information: read the following paper to get started:
[C5]
- Availability:
Download
(save to your disk as fosacqpeak.uu; to unpack
issue: csh fosacqpeak.uu),
or run the program directly from
this website
-
HST/NICMOS Pedestal Estimation & Quadrant
Equalization Software
- Author: Roeland van der Marel (1998)
- Purpose: Estimate an unknown constant bias level
(the `pedestal') in HST/NICMOS images, and make
the transitions at the quadrant boundaries continuous.
- Information: read this information
to get started.
- Availability:
Download
version 5.0 (July 26, 1998)
(save to your disk as pedestal.uu; to unpack
issue: csh pedestal.uu)
- IMPORTANT NOTE (August 31, 2000): This software
is now available as the IRAF task PEDSUB in the STSDAS
package (stsdas.hst_calib.nicmos). You are advised to
use that task instead of the (UNIX/FORTRAN) version
included here.
Return to my home page.
Last modified August 31, 2000.
Roeland van der Marel,
marel@stsci.edu.
Copyright Notice.