Difference between revisions of "Triggers:RCrB"
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| + | == R Corona Borealis stars == | ||
Only around 50 known in the Galaxy and Magellanic Clouds. | Only around 50 known in the Galaxy and Magellanic Clouds. | ||
| + | |||
| + | Characteristics: | ||
| + | * sudden and non-periodic drops in magnitude | ||
| + | * drops by up to 8 magnitudes | ||
| + | * some small variation in the baseline | ||
| + | * the "dark" stage can last from days to years | ||
| + | * recovers slowly to the baseline | ||
[[File:figure_rcrb.png|400px|right|thumb|Example of RCrB star in the LMC as seen by OGLE-II]] | [[File:figure_rcrb.png|400px|right|thumb|Example of RCrB star in the LMC as seen by OGLE-II]] | ||
| + | |||
| + | == DY Persei == | ||
| + | Some people claim it is a similar type to RCrB, however the drops in magnitude are much smaller and seem to be periodical (P~1000d). | ||
| + | [[File:DYPer.png|400px|left|thumb|Example light curve of DY Per-type candidate]] | ||
Revision as of 14:31, 24 August 2009
R Corona Borealis stars
Only around 50 known in the Galaxy and Magellanic Clouds.
Characteristics:
- sudden and non-periodic drops in magnitude
- drops by up to 8 magnitudes
- some small variation in the baseline
- the "dark" stage can last from days to years
- recovers slowly to the baseline
DY Persei
Some people claim it is a similar type to RCrB, however the drops in magnitude are much smaller and seem to be periodical (P~1000d).
