Difference between revisions of "Making CMDs and color-color diagrams"

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(Created page with "=Most coherent, developed, tested materials= *[https://www.youtube.com/watch?v=T8tksfNMwbU&list=PLjCjDYabTFm9b9jQd4hcZPAnFWYsIjs2D&index=9&t=0s Movie (15:18) on Optical Color-...")
 
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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.
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=Most coherent, developed, tested materials=
 
=Most coherent, developed, tested materials=
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*[https://www.youtube.com/watch?v=T8tksfNMwbU&list=PLjCjDYabTFm9b9jQd4hcZPAnFWYsIjs2D&index=9&t=0s Movie (15:18) on Optical Color-Mag and Color-Color Diagrams], part of the "Filters, Magnitudes, Colors, Oh My!" playlist -- -- Dr. Luisa Rebull, 2020
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*[https://www.youtube.com/watch?v=i781YPu4VRQ&list=PLjCjDYabTFm9b9jQd4hcZPAnFWYsIjs2D&index=10&t=0s Movie (10:40) on IR Color-Color and Color-Mag Diagrams], part of the "Filters, Magnitudes, Colors, Oh My!" playlist -- -- Dr. Luisa Rebull, 2020
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<font color="red">need tutorial on doing this in IRSA tools</font>
  
  
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*[[Photometry (finding it)]]
 
*[[Photometry (finding it)]]
 
*[[Color-color and color-magnitude diagrams]]
 
*[[Color-color and color-magnitude diagrams]]
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*[[Color selection]]
  
 
=Somewhat less coherent (or less standalone) materials=
 
=Somewhat less coherent (or less standalone) materials=
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*[[Color-Magnitude and Color-Color plots Overview]] - Dr. Luisa Rebull, 2011
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*[[Another CMD explanation attempt]] - Dr. Luisa Rebull, 2012
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See [https://www.youtube.com/channel/UCIysJbamhNnlu0Bgdrwxn_w IRSA's YouTube channel] for more updated versions of these videos if these links are broken.
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*[https://youtu.be/2ku4PKPetbY IRSA tutorial on making plots in IRSA Viewer]
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*[https://youtu.be/LBjcL1S67hE  IRSA tutorial on catalogs and plots in Finder Chart]
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*[https://youtu.be/hPZFYDDpvsk IRSA tutorial on making plots with error bars]
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=Other sources of interest=
 
=Other sources of interest=
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*http://www.noao.edu/education/arbse/arpd/oc
 
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*http://www.astro.washington.edu/labs/clearinghouse/labs/Clusterhr/cluster.html
 
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*http://cas.sdss.org/dr4/en/proj/advanced/hr/
 
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*https://sites.google.com/a/uw.edu/introductory-astronomy-clearinghouse/activities/stars
 
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*http://lcogt.net/en/book/observing-open-clusters-and-making-h-r-diagrams
 

Latest revision as of 01:51, 12 August 2020

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

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