Ap and Bp stars are peculiar stars (hence the “p”) of types A and B which show overabundances of some metals, such as strontium, chromium and europium; in addition, larger overabundances are often seen in praseodymium and neodymium. These stars have a much slower rotation than normal for A and B type stars, although some exhibit rotation velocities up to about 100 kilometers per second.
Read more about Ap And Bp Stars: Magnetic Fields, Abundance Spots, Rapidly Oscillating Ap Stars
Famous quotes containing the word stars:
“The day in his hotness,
The strife with the palm;
The night in her silence,
The stars in their calm . . .”
—Matthew Arnold (1822–1888)