Conjoined twins used to be called ‘Siamese’ twins. They were
connected somewhere; the chest, the hip, the top of the head. Sometimes they
can be separated, but other times they share some vital organ that can’t be
separated. Fraternal twins come from 2 different eggs, so the resulting babies
are not identical.
But what I really want to talk about is this cool binary
star system I heard about a few weeks ago. When you want to write science
fiction, you have to try to keep up with science, so I dip into that huge pool
of information every chance I get.
I already knew about binary stars. Two stars orbit some spot
between them. But this particular binary star system had stars that were far
closer than any that had been found before. Really close!
The stars were not identical; one was larger, the other
smaller. That’s pretty common with binary stars, so let’s call them fraternal
twins.
But when the astrophysicists studied the ‘output’ of this
particular pair of stars, expecting them to have different brightness because
of the difference in size, they found that the smaller star had the same corona
signature as its big brother. These two stars are actually sharing corona
matter! To me, that says ‘conjoined’.
Who would have ever believed that a pair of stars could
exist so close to each other than they could share ‘skin’, and yet remain
separate entities? Why doesn’t their mutual gravity make them merge into one
star? They have to be racing around each other at a super speed in order for that
outward force to counter-balance the gravity.
Now I’m wondering, ‘Are these stars still spheroid?’ Or are
they mis-shapened by the horrendous forces they must contend with every second?
And if they are mis-shapened, what shape are they? Teardrops with the points
aimed at each other? Or are they oblate spheroids, spheres that have been
squashed?
The neat thing about science is that it doesn’t just answer
questions, it raises even more questions for you to ponder. I’m going to
speculate about this particular pair of conjoined fraternal twins for some
time.
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