Difference between revisions of "File talk:Ysobyclassoni4.png"

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http://coolwiki.ipac.caltech.edu/index.php/Color-Magnitude_and_Color-Color_plots  [http://coolwiki.ipac.caltech.edu/index.php/Color-Magnitude_and_Color-Color_plots]--
 
http://coolwiki.ipac.caltech.edu/index.php/Color-Magnitude_and_Color-Color_plots  [http://coolwiki.ipac.caltech.edu/index.php/Color-Magnitude_and_Color-Color_plots]--
  
Class 0: these are very young stars, still buried deep inside their cocoon of gas. These do not appear on the diagram at left, because they are so buried, they do not appear even at 3.6 or 4.5 microns.
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Class 0: these are very young stars, still buried deep inside their cocoon of gas.  
 +
 
 
--Class I: these are protostars surrounded by an infalling envelope of gas.
 
--Class I: these are protostars surrounded by an infalling envelope of gas.
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--Class II: these protostars, now in the T-Tauri stage, have developed protoplanetary disks.
 
--Class II: these protostars, now in the T-Tauri stage, have developed protoplanetary disks.
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--Class III: these are nearly fully developed stars, with just a remnant disk (and possibly planets) surrounding them.
 
--Class III: these are nearly fully developed stars, with just a remnant disk (and possibly planets) surrounding them.

Latest revision as of 08:59, 21 December 2010

http://coolwiki.ipac.caltech.edu/index.php/Color-Magnitude_and_Color-Color_plots [1]--

Class 0: these are very young stars, still buried deep inside their cocoon of gas.

--Class I: these are protostars surrounded by an infalling envelope of gas.

--Class II: these protostars, now in the T-Tauri stage, have developed protoplanetary disks.

--Class III: these are nearly fully developed stars, with just a remnant disk (and possibly planets) surrounding them.