Uncertainties are a bit different in counting experiments - this lesson explains how. It also covers averaging and how that affects uncertainties. Back Main Uncertainties Page .

Session 9 - The Hubble Deep Field. ... The Hubble Deep Field (HDF) experiment is a unique project to explore at unprecedented depth and angular resolution the faintest and most distant galaxies. ... This allows study of broad-band spectral energy distribution, morphology and number count statistics for galaxies that span the largest, if not the whole, time interval of galaxy history. ... Here we present preliminary number counts, color-magnitude and color-color diagrams for the 4 HDF frames. ...

... Up: Real-Time Systems . ... The Rossi X-ray Timing Explorer ( RXTE ) spacecraft contains a large Proportional Counter Array (PCA) experiment which produces high count rates for many X-ray sources. ... This allows opportunity for some serious real time interpretation and decision making by the experiment controller, duty scientist, and Guest Observer (GO), if present. ... This paper briefly describes the available Science Monitoring subsystem display options. ...

1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/AstroStat/slog/2008/dark-matter-modulation/comment-page-1/#comment-214 vlk Fri, 25 Apr 2008 13:41:28 +0000 http://hea-www.harvard.edu/AstroStat/slog/?p=279#comment-214 Indeed, it is the likelihood of systematic effects that will control our belief in the result I am not sure, Count Iblis, that [1] is all that persuasive -- all it may mean is that the relevant effect was not identified with either experiment. ...