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[vsnet-rcb 570] Re: [vsnet-campaign-rcb 115] (fwd) Re: R CrB deepest minimum

Date: Wed, 12 Mar 2003 20:06:37 -0600 (CST)
To: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>
From: "First in war, first in peace, last in the American League. (gclayton)" <gclayton@fenway.phys.lsu.edu>
Subject: [vsnet-rcb 570] Re: [vsnet-campaign-rcb 115] (fwd) Re: R CrB deepest minimum
Cc: vsnet-campaign-rcb@ooruri.kusastro.kyoto-u.ac.jp,vsnet-rcb@ooruri.kusastro.kyoto-u.ac.jp
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You can see from the BAAVSS plot and also from the AAVSO plot of
1843-1972:

http://vsnet.aavso.org/images/HISTRCRB.GIF

that the typical RCB lightcurve hits bottom at ~8 mag below max. The
lightcurve actually shows a flat bottom that it can't go below. At this
point, we are seeing no direct light from the star and only scattered
light from around the star. Other RCB stars show similar behaviour.

Geoff Clayton

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