Those of you who have been following our blogs would know that last week we spoke about the formation of the Red Giant and in this edition we will speak about what occurs after the stage of Red Giant. Like we discussed in the earlier blog a star burns due to the fusion reaction between Hydrogen and Helium and this fusion reaction exerts an outward pressure but due to the immense gravity there exists a balance between the two and once all the Hydrogen runs out in about 10 billion years of burning, gravity takes over and the helium present in the core gets fused into carbon and the fusion that occurs there causes the star expand further and we observe this celestial object as a red giant. After it's finished its helium, it isn't quite hot enough to be able to burn the carbon it created, it will succumb to gravity again and the core of the star contracts, it will cause a release of energy that makes the envelope of the star expand. Now the star has become an even bigger giant than before. The star will not be stable at this point and will lose mass. This continues until the star finally blows its outer layers off. The core of the star, however, remains intact, and becomes a white dwarf.
Here at MathsOne, one of the Best Tuition Centres in Kerala we educate our students in celestial objects and broaden their horizons