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No Really Big Worlds Beyond The Kuiper Belt? |
 Oct 17 2005, 12:53 AM
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 Senior Member  Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430  |
No Kuiper Belt Jupiters; No Nemesis
Astronomers have long wondered whether the solar system might have an unseen giant planet far out in the darkness beyond Pluto and the Kuiper Belt. If so, it must be very far out indeed. Nadia Zakamska and Scott Tremaine have set new limits on the existence of any such massive object.... Earlier this year, Varun Bhalerao and M. N. Vahia showed that no red-dwarf companion of the Sun (a so-called "Nemesis" object) can exist within 25,000 astronomical units.... http://SkyandTelescope.com/news/article_1609_1.asp -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Oct 17 2005, 12:23 PM
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Junior Member Group: Members Posts: 45 Joined: 8-August 05 Member No.: 457 |
Hum,
Cool, yesterday’s news, brought to you today. No Nemesis no planet X http://au.arxiv.org/PS_cache/astro-ph/pdf/0506/0506548.pdf |
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ljk4-1 No Really Big Worlds Beyond The Kuiper Belt? Oct 17 2005, 12:53 AM
abalone QUOTE (ljk4-1 @ Oct 17 2005, 11:53 AM)No... Oct 17 2005, 10:14 AM
Richard Trigaux If we read the paper, we find that the accuracy of... Oct 17 2005, 03:14 PM blobrana QUOTE (Richard Trigaux @ Oct 17 2005, 07:44 P... Oct 17 2005, 09:32 PM Richard Trigaux QUOTE (blobrana @ Oct 17 2005, 09:32 PM)Indee... Oct 18 2005, 07:31 AM Marz In 2011, ALMA should be getting first light in Chi... Oct 19 2005, 03:13 PM ljk4-1 QUOTE (Marz @ Oct 19 2005, 10:13 AM)In 2011, ... Oct 19 2005, 04:34 PM
ljk4-1 Paper: astro-ph/0510826
Date: Sat, 29 Oct 2005 19... Nov 4 2005, 03:42 AM Richard Trigaux QUOTE (ljk4-1 @ Oct 19 2005, 04:34 PM)Pa... Nov 5 2005, 08:37 AM ljk4-1 QUOTE (Marz @ Oct 19 2005, 10:13 AM)In 2011, ... Nov 4 2005, 04:44 PM |
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