Abstract: GRID-core is a core-finding method using the contours of the local gravitational potential to identify core boundaries. The GRID-core method applied to 2D surface density and 3D volume density are in good agreement for bound cores. We have implemented a version of the GRID-core algorithm in IDL, suitable for core-finding in observed maps. The required input is a two-dimensional FITS file containing a map of the column density in a region of a cloud.
Credit: Gong, Hao; Ostriker, Eve C.
Site: https://www.astro.princeton.edu/~eco/co ... D_core.htm
Preferred citation method: http://adsabs.harvard.edu/abs/2011ApJ...729..120G
Reason: Updated code entry.