| |
KA9LCF > NEWS 07.09.12 21:34l 44 Lines 1443 Bytes #999 (0) @ ALLIN
BID : 38395-KA9LCF
Read: GUEST
Subj: ARN: That Final Item
Path: IZ3LSV<IK6IHL<IK6ZDE<F1OYP<N9PMO<XE1FH<J39BS<9Y4PJ<N9LYA<KA9LCF
Sent: 120904/2137Z 38395@KA9LCF.#NEIN.IN.USA.NOAM [169469]FBB7.01.35 alpha $:38
From: KA9LCF@KA9LCF.#NEIN.IN.USA.NOAM
To : NEWS@ALLIN
THAT FINAL ITEM: STAR FOUND DEVOURING PLANET
And finally this week, radio and radio astronomy have
brought some new light on the way nature works out in the
cosmos. Amateur Radio Newsline's Cheryl Lasek, K9BIK, takes
us to the far reaches of space:
--
Astronomers have found evidence of a planet being devoured
by its star, yielding insights into the fate that will
befall Earth several billions years in the future.
The team uncovered the signature of the planet that had been
absorbed by looking at the chemistry of the host star. They
also think a surviving planet circling this star may have
been kicked into its unusual orbit by the destruction of a
neighboring world.
The US-Polish-Spanish team made the discovery when they were
studying the star BD+48 740 - which is one of a stellar
class known as red giants. Rising temperatures near the
cores of red giants cause these elderly stars to expand in
size. This in turn results in any nearby planets to be
absorbed by the expanding star or otherwise destroyed.
It's the way of the universe now brought to us thanks to the
art of radio and the science of Astronomy.
For the Amateur Radio Newsline, I'm Cheryl Lasek, K9BIK, in
Zion, Illinois.
--
Details of the work have been published in Astrophysical
Journal Letters. The complete story is on-line at
tinyurl.com/planet-hungry-star. (ScienceToday, BBC,
others)
Read previous mail | Read next mail
| |
