Question 1 Please describe each of the following dwarf types

Question 1: Please describe each of the following dwarf types: red, brown, and white. Which one is the largest?

Question 2: Please, describe a difference between a nova and an X-ray burst.

***Please answer with full detail and explanations

Solution

1. Red dwarf

The size of the red dwarf stars are smaller than our sun. Because of its size, it has less mass and burning of fuel is very slow. these are not shine brightly. and these stars having longer life time.

Brown dwarf: Mass range between twice the mass of Jupiter and 0.08 times the mass of our sun.

These stars arevery dim and cool compared with other stars. These stars are observed by infrared telescope.

White dwarf: these stars are much smaller than normal stars, mass of the white dwarf is only slightly larger than the Earth.

Brown dwarf is a largest one.

2.  Nova : a) the fusion occurs on the surface of a white dwarf.

, b) the fusion is hydrogen fusion

X ray burster:a) it occurs on the surface of a neutron star

b) the fusion is helium fusion

In a nova, , but in an X-ray burster, the hydrogen has fused into helium on the neutron star surface, so the burst comes from helium fusion.