Making CMDs and color-color diagrams

From CoolWiki
Jump to navigationJump to search

To make a color-magnitude diagram (CMD) or a color-color diagram, you need to (1) convert any fluxes/flux densities you have to magnitudes; (2) compute colors by taking bluer color minus redder color (e.g., B-V or K-[24]); (3) if a CMD, plot magnitudes on the y-axis, with brighter objects (smaller numbers) on the top, so reversing the 'standard' y-axis; (4) if a CMD, colors should be on the x-axis and increase to the right; if a color-color diagram, colors should be on both axes, increasing to the top and right.

Most coherent, developed, tested materials

need tutorial on doing this in IRSA tools


Other important CoolWiki pages

Somewhat less coherent (or less standalone) materials

See IRSA's YouTube channel for more updated versions of these videos if these links are broken.


Other sources of interest