Comments on: Noise Floor http://oklo.org/2006/11/20/noise-floor/ characterizing planetary systems Wed, 18 Apr 2012 18:53:22 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: greg http://oklo.org/2006/11/20/noise-floor/comment-page-1/#comment-453 greg Mon, 20 Nov 2006 19:29:34 +0000 http://oklo.org/?p=172#comment-453 Hi Darin, I was wondering about the solar cycle as well, but there's no evidence of an oscillation in that time-series. It looks more like an exponentially increasing envelope. Also, a 25m/s half-amplitude for the noise variation would presumably be huge for a solar-type star... Greg Hi Darin,

I was wondering about the solar cycle as well, but there’s no evidence of an oscillation in that time-series. It looks more like an exponentially increasing envelope. Also, a 25m/s half-amplitude for the noise variation would presumably be huge for a solar-type star…

Greg

]]> By: darin http://oklo.org/2006/11/20/noise-floor/comment-page-1/#comment-452 darin Mon, 20 Nov 2006 18:35:00 +0000 http://oklo.org/?p=172#comment-452 Greg- I would guess that the variation in amplitude of the radial velocity is due to the 11-year solar cycle. The last maximum was in 2000, and we are in solar minimum now. The intrinsic radial velocity scatter doesn't line up, but synthetic datasets may want to include such a periodic noise... making the planets even harder to detect. Darin Greg-

I would guess that the variation in amplitude of the radial velocity is due to the 11-year solar cycle. The last maximum was in 2000, and we are in solar minimum now. The intrinsic radial velocity scatter doesn’t line up, but synthetic datasets may want to include such a periodic noise… making the planets even harder to detect.

Darin

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