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Animation: GALFIT strips away NGC 4111 layer by layer.

GALFIT Version 3 is now available with the following new features.

I. Download:

• Email to GALFIT users

• The most recent version of GALFIT (version 3, June 27, 2009), in binary form.

  (Due to copyright patent of Numerical Recipes, the GALFIT source code itself is currently not available. But I am looking for ways to work around this issue by replacing the relevant copyright codes to make the GALFIT source available again. In the meanwhile, I can distribute the binary code, which is both good and bad. Good: you don't have to compile the code yourself. Bad: the operating systems below represent only those to which I have access. Contact me if yours is not in one of them and we'll find a solution.)

  1. Redhat Enterprise 64 bit Linux Version (Courtesy of Vardha Nicola Bennert)

  2. Redhat Fedora Linux Version

  3. Debian 5/Ubuntu Version (Courtesy of Fernando Avila Castro)

  4. Mac OS X (Snow) Leopard Version

  5. Suse Version

• An Example Tar File -- Try out GALFIT on this first

• Paper on GALFIT (Peng et al. 2002, Astronomical Journal (AJ), 124, 266)

• Instructions on using GALFIT

• Keynote presentation for the Jan. 2010 AAS High-z Galaxy Morphology Special Session

• Sample input files:

  NOTA BENE: The input file has changed between Version 3 and Version 2. Parameters 8, 9, and 10 in Version 2 are now called 9, 10, and C0 in Version 3. C0 is now an optional parameter, so it is only visible when specified explicitly and given a value.

  Bare bones

  All possible function types

  Constraints file

II. Please Read Advisory on using GALFIT and Top 10 Rules of Thumb before fitting.

This work is made possible by support from friends and colleagues, including Chris Impey, Hans-Walter Rix, Luis Ho, team members on GEMS, STAGES, CASTLES, CINGS, and the GALFIT users who have contacted me either to seek help or to offer suggestions and comments. This work is also made possible by financial support from the Herzberg Institute of Astrophysics Plaskett Fellowship, STScI Institute/Giacconi Fellowship, the NASA JPL Michelson Fellowship, Jamieson grant (who supported my graduate work at the University of Arizona), and by NASA via Hubble Space Telescope grants provided through the Space Telescope Science Institute (operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555).

Chien Peng ()