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Changeset 40097 for trunk


Ignore:
Timestamp:
Jul 14, 2017, 6:27:03 AM (9 years ago)
Author:
eugene
Message:

convert to release Makefile model; update cites

Location:
trunk/doc/release.2015/systematics.20140411
Files:
1 added
1 edited

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  • trunk/doc/release.2015/systematics.20140411/systematics.tex

    r40096 r40097  
    77%\documentclass[preprint2]{aastex}
    88%\documentclass[preprint2,longabstract]{aastex}
     9
     10\RequirePackage{graphicx}
    911\RequirePackage{color}
     12\RequirePackage{code}
    1013\input{astro.sty}
     14
     15\usepackage[T1]{fontenc}% (2) specify encoding
    1116
    1217% online version may use color, but print version needs b/w
     
    1722\def\plotext{ps}
    1823
    19 %\def\picdir{/home/eugene/chipresid.20140404}
    20 \def\picdir{/data/kukui.2/eugene/chipresid.20140404}
     24\def\picdir{/home/eugene/chipresid.20140404}
     25%\def\picdir{/data/kukui.2/eugene/chipresid.20140404}
    2126
    2227% Pick a terse version of the title here;
     
    108113The 1.8m Pan-STARRS\,1 telescope (PS1), located on the summit of
    109114Haleakala on the Hawaiian island of Maui, has been surveying the sky
    110 regularly since May 2010 \citep{chambers.2017}.  From May 2010 through
     115regularly since May 2010 \citep{chambers2017}.  From May 2010 through
    111116March 2014, PS1 was run under the aegis of the Pan-STARRS Science
    112117Consortium to perform a set of wide-field science surveys; since March
     
    118123observations were distributed over five filters, \grizy, and have been
    119124astrometrically and photometrically calibrated to good precision
    120 \citep{magnier.2017.calibration}.
    121 
    122 The wide-field PS1 telescope optics \citep{PS1.optics} image a 3.3
    123 degree field of view on a 1.4 gigapixel camera \citep[GPC1][]{PS1.GPC1}, with
    124 low distortion and generally good image quality.  The median seeing
    125 for the \TPS\ data vary somewhat by filter, with (\grizy) = (XXXX).
    126 Routine observations are conducted remotely from the Advanced
    127 Technology Research Center in Kula, the main facility of the
    128 University of Hawaii's Institute for Astronomy operations on Maui.
    129 
    130 GPC1 \citep{PS1.GPCA}, currently the largest astronomical camera in
     125\citep{magnier2017.calibration}.
     126
     127% 2004SPIE.5489..667H == PS1.optics
     128% 2008SPIE.7014E..0DO == PS1.GPCB
     129% 2009amos.confE..40T == PS1.GPCA
     130% 2012ApJ...756..158S == ubercal
     131The wide-field PS1 telescope optics \citep{2004SPIE.5489..667H} image
     132a 3.3 degree field of view on a 1.4 gigapixel camera
     133\citep[GPC1][]{2009amos.confE..40T}, with low distortion and generally
     134good image quality.  The median seeing for the \TPS\ data vary
     135somewhat by filter, with (\grizy) = (XXXX).  Routine observations are
     136conducted remotely from the Advanced Technology Research Center in
     137Kula, the main facility of the University of Hawaii's Institute for
     138Astronomy operations on Maui.
     139
     140GPC1 \citep{2009amos.confE..40T}, currently the largest astronomical camera in
    131141terms of number of pixels, consists of a mosaic of 60 edge-abutted
    132142$4800\times4800$ pixel detectors, with 10~$\mu$m pixels subtending
     
    135145readout time of 7 seconds for a full unbinned image. \note{details
    136146  about the voltages?}  Initial performance assessments are presented
    137 in \cite{PS1.GPCB}. The active, usable pixels cover $\sim 80$\% of the
     147in \cite{2008SPIE.7014E..0DO}. The active, usable pixels cover $\sim 80$\% of the
    138148FOV.
    139149
    140150\subsection{Data Processing and Calibration}
    141151
     152% PS1_IPP = \bibitem[Magnier(2006)]{PS1.IPP} Magnier, E.\ 2006,
     153% Proceedings of The Advanced Maui Optical and Space Surveillance
     154% Technologies Conference, Ed.: S. Ryan, The Maui Economic Development
     155% Board, p.E5
     156
    142157Images obtained by PS1 are processed by the Pan-STARRS Image
    143 Processing Pipeline (IPP; \citealp{PS1_IPP,
    144   magnier.etal.2016.datasystem}).  All observations are processed
     158Processing Pipeline (IPP; \citealp{PS1_IPP,magnier2017.datasystem}).  All observations are processed
    145159nightly, with results sent to groups within the science consortium
    146160(i.e., PS1SC during the \TPS) performing short-term science projects
     
    157171The data processing and calibration operations are discussed in detail
    158172in elsewhere
    159 \citep{magnier.etal.2017.analysis,magnier.etal.2017.calibration,waters.2017}.
     173\citep{magnier2017.analysis,magnier2017.calibration,waters2017}.
    160174We re-visit here a number of points that are of significance to this
    161175study.  Images are processed following a fairly standard sequence of
     
    168182the initial analysis steps.
    169183
    170 As discussed in \cite{waters.2017}, image detrending includes
     184% Magnier.belgium:
     185% \bibitem[Magnier(2007)]{PS1.photometry} Magnier, E.\ 2007, The Future
     186% of Photometric, Spectrophotometric and Polarimetric Standardization, ASP Conference Series {\bf 364}, 153
     187
     188%IPP astrometry (NOT USED)
     189% \bibitem[Magnier {\it et al.}(2008)]{PS1.astrometry} Magnier, E.~A., Liu,
     190% M., Monet, D.~G., \& Chambers, K.~C.\ 2008, IAU Symposium, {\bf 248}, 553
     191
     192As discussed in \cite{waters2017}, image detrending includes
    171193flat-field processing with a single epoch flat-field image for each
    172194filter.  The flat-field image used for this analysis has been
     
    180202factors which may make the flat-field image inconsistent with stellar
    181203photometry, e.g., SED, filter band-pass variations, etc
    182 \citep[see][]{waters.2017,magnier.cuillandre,magnier.belgium}.  This
     204\citep[see][]{waters2017,2004PASP..116..449M,magnier.belgium}.  This
    183205correction was made on a relatively coarse grid across the focal plane
    184206in order to accumulate sufficient statistics from the stars in the
     
    192214Photometry of the PS1 images is performed using a
    193215point-spread-function (PSF) model as well as multiple kinds of
    194 apertures \citep{magnier.etal.2017.analysis}.  In this analysis, we
     216apertures \citep{magnier2017.analysis}.  In this analysis, we
    195217refer to aperture photometry performed using an aperture defined based
    196218on the image quality observed for a given chip.  The aperture diameter
     
    201223photometry is re-calibrated within the databasing system based on the
    202224properties of the measured photometry.  The calibration process is
    203 discussed by \cite{ubercal,photladder,magnier.etal.2017.calibration}.
     225discussed by \cite{2012ApJ...756..158S,2013ApJS..205...20M,magnier2017.calibration}.
    204226As part of this process, several flat-field corrections have been
    205227determined.  For the PV2 analysis discussed here, a flat-field
    206228correction determined during the ubercal analysis
    207 \citep[see][]{ubercal} consisted of an $8\times 8$ grid of corrections
     229\citep[see][]{2012ApJ...756..158S} consisted of an $8\times 8$ grid of corrections
    208230for each GPC1 chip and filter for each of 4 seasons.  The boundaries
    209231of those seasons are \note{tentatively} identified with modifications
     
    218240brighter sources (using a non-linear fitting process) and from a
    219241simple centroid (1st moment) for the fainter source
    220 \citep{magnier.etal.2017.analysis}.  These position measurements are
     242\citep{magnier2017.analysis}.  These position measurements are
    221243used in the astrometric analysis.  The astrometric calibration is
    222 discussed by \cite{magnier.etal.2017.calibration}; for the PV2
     244discussed by \cite{magnier2017.calibration}; for the PV2
    223245dataset, the typical systematic floor is \approx 15 - 20
    224246milliarcsecond for individual measurements of brighter stars.
     
    428450\end{figure*}
    429451
     452% 2012ApJ...750...99T = Tonry et al PS1 phot system
    430453Figure~\ref{fig:flats.by.filter} shows the high-spatial-frequency
    431454structures in the flat-field images.  For this measurement, we have
     
    434457then observed by the PS1 telescope.  These flat-field images were
    435458obtained 2011 Feb 09 as part of a campaign to study the PS1 system
    436 response \citep{tonry.phot}.  Flats were obtain in a set of 4nm steps,
     459response \citep{2012ApJ...750...99T}.  Flats were obtain in a set of 4nm steps,
    437460with \note{XXnm} band-pass.  To enhance the signal-to-noise, we have
    438461median-combined a set of 6 flats at the center of the corresponding filter.
     
    511534objects is biased down by the weighting function, this is not quite
    512535the same as having $\sigma_{w} = 1.6$ times the true PSF $\sigma$, see
    513 discussion in \citealt{magnier.etal.2017.analysis}).  For each stellar
     536discussion in \citealt{magnier2017.analysis}).  For each stellar
    514537detection, we extract the values $M_{xx,xy,yy} = \sum F_i w_i (x^2, x
    515538y, y^2) / \sum F_i w_i$.  For each exposure, we find the mean second
     
    522545
    523546Using the second moment images, we can construct certain interesting
    524 combinations, inspired by discussions of lensing measurements \citep{kaiser.1995}:
     547combinations, inspired by discussions of lensing measurements \citep{1995ApJ...449..460K}:
    525548\begin{eqnarray}
    526549R^2 & = & \delta M_{xx} + \delta M_{yy} \\
     
    828851deviations are correlated with the radial derivative of the smearing.
    829852
     853\acknowledgments
     854
     855The Pan-STARRS1 Surveys (PS1) have been made possible through
     856contributions of the Institute for Astronomy, the University of
     857Hawaii, the Pan-STARRS Project Office, the Max-Planck Society and its
     858participating institutes, the Max Planck Institute for Astronomy,
     859Heidelberg and the Max Planck Institute for Extraterrestrial Physics,
     860Garching, The Johns Hopkins University, Durham University, the
     861University of Edinburgh, Queen's University Belfast, the
     862Harvard-Smithsonian Center for Astrophysics, the Las Cumbres
     863Observatory Global Telescope Network Incorporated, the National
     864Central University of Taiwan, the Space Telescope Science Institute,
     865the National Aeronautics and Space Administration under Grant
     866No. NNX08AR22G issued through the Planetary Science Division of the
     867NASA Science Mission Directorate, the National Science Foundation
     868under Grant No. AST-1238877, the University of Maryland, and Eotvos
     869Lorand University (ELTE) and the Los Alamos National Laboratory.
     870
     871\bibliographystyle{apj}
     872\bibliography{lib}{}
     873%\input{analysis.bbl}
     874
    830875\end{document}
    831876
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