What are Some Important Effects or Phenomena in Astrophysics?

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Key phenomena in astrophysics include the Rossiter effect, which relates to the orbital dynamics of exoplanets, and the Yarkovsky effect, which describes how an asteroid's orbit is altered by thermal radiation. Recent discoveries also highlight gravitational waves, which provide insights into cosmic events, and dark energy, influencing the universe's expansion. Other significant effects include the Doppler effect in light from moving objects and the lensing effect caused by massive objects bending light. Understanding these phenomena is crucial for advancing knowledge in astronomy and astrophysics. This information is essential for preparing for competitions like the IOAA.
soumyashant
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hi friends
can you help me in collecting systematically some important phenomenon or 'effects' in astronomy and astrophysics like rossiter effect, yarkovsky effect.:cool:

even recently discovered phenomenon and related explanations are welcome.:approve:
 
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actually i am preparing for IOAA 2007 (international olympiad on astronomy and astrophysics.

so i am looking forward to your help
 
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