were discovered over thirty years ago by
Here, she describes some of the characteristics of these objects
Actually, the first
was first identified in the
because of its
regular pulses of radio energy
. This behavior was somewhat
unexpected, and the radio source was
first thought to be artificial
. One of the first pulsars studied was the
. The constellation of
is in the southern sky, so many of you northern hemisphere types have probably never heard of it. Listen to this
recording of the Vela pulsar
Not all pulsars emit at radio frequencies. We now have evidence of X-Ray pulsars, which are made to spin as fast as
one thousand times
by accreting material from a companion star. In orbit around the Earth right now is the Chandra X-Ray observatory. The scientists
at that facility present a wealth of information about neutron stars on
So what, exactly, is going on inside a neutron star?
Here’s one possible description
If the original star is massive enough, the ultimate end in that case would be a
Looking for a particular star?
Find it here!
Here’s the list of all 88 recognized constellations