61344

神经网络昆斯林的新闻组分类2006

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From: [e-mail] (Ethan Bradford)
Newsgroups: sci.astro,sci.space
Subject: Re: Gamma Ray Bursters. WHere are they.
Message-ID: <[e-mail]>
Date: 29 Apr 93 07:16:20 GMT
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To: [e-mail] (Walker Andrew John)
In-reply-to: [e-mail]'s message of 29 Apr 1993 13:31:32 +1000

[e-mail] (Walker Andrew John) writes:
	   Also,if they did come from the Oort cloud we would expect to
   see the same from other stars Oort Clouds.

That's a very good point.  Perhaps none of the nearby stars have Oort
clouds?  Alpha-centauri is a multiple-star system; you wouldn't expect
an Oort cloud in it.  What's the nearest single-star that is likely to
have a planetary system?