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BLAST: Resolving the Cosmic Submillimeter Background

  • Authors: Gaelen Marsden, Peter A. R. Ade, James J. Bock, Edward L. Chapin, Mark J. Devlin, Simon R. Dicker, Matthew Griffin, Joshua O. Gundersen, Mark Halpern, Peter C. Hargrave, David H. Hughes, Jeff Klein, Philip Mauskopf, Benjamin Magnelli, Lorenzo Moncelsi, Calvin B. Netterfield, Henry Ngo, Luca Olmi, Enzo Pascale, Guillaume Patanchon, Marie Rex, Douglas Scott, Christopher Semisch, Nicholas Thomas, Matthew D. P. Truch, Carole Tucker, Gregory S. Tucker, Marco P. Viero, and Donald V. Wiebe

MARSDEN et al. 2009 The Astrophysical Journal 707 1729.

  • Provider: AAS Journals

Caption: Figure 1.

Distribution of the pixel S/N in BGS-Deep map at 500 μm (histogram). The scale on the y-axis is the number of pixels per bin of width 0.1. The positive tail is due to bright sources in the map. Because the map has a mean of zero, the peak of the distribution is shifted to the left of zero, as indicated by the vertical dotted line. A Gaussian (thick solid curve) is fit to the negative side of the histogram. For reference, the measured instrument noise (a Gaussian, with width 1.0 in units of S/N) is overplotted (thin dashed line). The map is clearly dominated by confusion noise.

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