- Timestamp:
- Jan 28, 2020, 12:00:34 PM (6 years ago)
- Location:
- trunk/doc/release.2015/ps1.detrend
- Files:
-
- 2 edited
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Makefile (modified) (2 diffs)
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detrend.tex (modified) (10 diffs)
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trunk/doc/release.2015/ps1.detrend/Makefile
r40725 r41238 44 44 images/stack_3956997_num.png \ 45 45 images/stack_3956997_exp.png \ 46 images/stack_3956997_expwt.png 46 images/stack_3956997_expwt.png \ 47 images/warp.and.stack.demo.pdf 47 48 48 49 APICS = \ … … 73 74 images/stack_3956997_num_sm.png \ 74 75 images/stack_3956997_exp_sm.png \ 75 images/stack_3956997_expwt_sm.png 76 images/stack_3956997_expwt_sm.png \ 77 images/warp.and.stack.demo.pdf 76 78 77 79 FILES = \ -
trunk/doc/release.2015/ps1.detrend/detrend.tex
r41223 r41238 30 30 % \def\plotopt{_mt} 31 31 32 %% set to '.' for the journal and arxiv versions: 32 33 % use this to make the figure picture path flexible: 33 \def\picdir{images}34 %\def\picdir{.}34 % \def\picdir{images} 35 \def\picdir{.} 35 36 36 37 % CZW commands from my previous draft. … … 254 255 will be made available in a future data release. 255 256 256 In this article, we use the following type-faces to distinguish257 different concepts: 257 \textadd{In this article, we use the following type-faces to distinguish 258 different concepts:} 258 259 \begin{itemize} 259 260 \item \ippstage{Small caps} for the analysis stages. … … 385 386 \hline 386 387 Burntool repair & registration & \ref{sec:burntool} \\ 387 Non-linearity correction & c ell& \ref{sec:nonlinearity} \\388 Overscan Subtraction & c ell& \ref{sec:overscan} \\389 Dark \& Bias Subtraction & c ell& \ref{sec:dark} \\390 Pattern Row correction & c ell& \ref{sec:pattern.row} \\391 Noisemap & c ell& \ref{sec:noisemap} \\388 Non-linearity correction & chip & \ref{sec:nonlinearity} \\ 389 Overscan Subtraction & chip & \ref{sec:overscan} \\ 390 Dark \& Bias Subtraction & chip & \ref{sec:dark} \\ 391 Pattern Row correction & chip & \ref{sec:pattern.row} \\ 392 Noisemap & chip & \ref{sec:noisemap} \\ 392 393 Flat-field Correction & chip & \ref{sec:flat} \\ 393 394 Fringe Correction$^1$ & chip & \ref{sec:fringe} \\ … … 1759 1760 \subsection{Astrophysical vs Other Backgrounds} 1760 1761 1761 The model of the background light is subtracted from each chip image1762 \textadd{The model of the background light is subtracted from each chip image 1762 1763 during the \IPPstage{chip}-stage processing before source detection 1763 1764 begins. The decision to subtract a background model is somewhat 1764 1765 tricky as the trade-offs are not clear in all possible cases. It is 1765 1766 helpful to consider the types of sources which contribute to the 1766 background light in astronomical images. 1767 background light in astronomical images.} 1767 1768 1768 1769 \begin{table*}[tpb] … … 1787 1788 \end{table*} 1788 1789 1789 First, there is ``scattered'' light\footnote{We put the term ``scattered'' in quotes because this1790 \textadd{First, there is ``scattered'' light\footnote{We put the term ``scattered'' in quotes because this 1790 1791 background may include light which reaches the detector directly 1791 1792 from the sky or other light source rather than scattering off … … 1804 1805 ``scattered'' background light source would be the large out-of-focus 1805 1806 pupil image observed in \eg, the NOAO and CTIO wide-field imagers 1806 \citep{2007ASPC..376..269S}. 1807 1808 Second, there are direct terrestrial contributions to the background1807 \citep{2007ASPC..376..269S}.} 1808 1809 \textadd{Second, there are direct terrestrial contributions to the background 1809 1810 light. This source of light follows the same path as the light from 1810 1811 the stars to the detector, but has an origin much closer to the … … 1816 1817 are not expected to be repeatable for a given location on the sky, 1817 1818 though the pupil ghost image may well be the same for a fixed 1818 telescope pointing and night sky brighness. 1819 1820 Finally, there are astrophysical contributions to the background1819 telescope pointing and night sky brighness.} 1820 1821 \textadd{Finally, there are astrophysical contributions to the background 1821 1822 light. These range from the (relatively) nearby zodiacal light to the 1822 1823 extragalactic background. Depending on the context and the source … … 1827 1828 object, e.g., a well-resolved galaxy, it is necessary to 1828 1829 decide what portion of the large-scale flux is a background and what 1829 is part of the flux of the object being measured. 1830 1831 When one measures the flux of an object in an image, two approaches to1830 is part of the flux of the object being measured.} 1831 1832 \textadd{When one measures the flux of an object in an image, two approaches to 1832 1833 the background light are possible. On the one hand, one could attempt 1833 1834 to include the background as part of the model-fitting parameters at … … 1841 1842 Second, by subtracting a background model, we remove varying 1842 1843 backgrounds from the image so that the resulting pixels can later be 1843 combined to make a deep stack. 1844 1845 The IPP background subtraction works well to remove the large-scale1844 combined to make a deep stack. } 1845 1846 \textadd{The IPP background subtraction works well to remove the large-scale 1846 1847 background structures from the terrestrial and scattered-light 1847 1848 sources, and to subtract the background light of large-scale … … 1859 1860 M31, which covers an entire pointing of GPC1, the measured background 1860 1861 was added back to the \IPPstage{chip} stage images. This special 1861 processing was not used for the large scale $3\pi$ PV3 reduction. 1862 processing was not used for the large scale $3\pi$ PV3 reduction.} 1862 1863 1863 1864 \section{GPC1 Detrend Construction}
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