Astronomy Chapter 15 and 16

Solar wind particles can be captured by the Earth's magnetosphere. When these particles spiral down along the magnetic field into the atmosphere, they are responsible for:

The Northern and Southern Aurourae

When did scientist begin to understand how the Sun produces all the energy that it does?

The process was not well understood until the 1930's

In the Sun, when a positron and an electron collide, they will produce

energy in the form of a gamma ray

At the end of the p-p chain of nuclear fusion in the Sun, hydrogen nuclei have been converted into

helium

The antimatter version of an electron is called a

positron

Astronomers now realize that active regions on the Sun are connected with

strong magnetic fields

Which part of the Sun has the greatest density?

the core

The hotter region directly above the Sun's visible surface is called the

the corona

In the formula E=mc2, the letter c stands for

the speed of light