https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 https://pfspipe.ipmu.jp/jira/browse/PIPE2D-384 DRP 2-D Pipeline <p>To get a feel for how many spectrophotometric standards we have across the HSC footprint, we collect stars from the HSC database and apply magnitude + color cuts to select F-stars and estimate their spatial density.  The density is of course dependent on the cuts we apply, but it would be useful to get a feel at this point and also to setup a machinery to estimate the stellar density for a given set of mag + color cuts.</p> <p> </p> <p> </p> PIPE2D-384

Estimate density of F-stars as a fn of (RA, Dec)

Task Normal Done Done Takuji Yamashita Masayuki Tanaka flux-calibration Thu, 7 Mar 2019 06:47:49 +0000 Wed, 18 Sep 2019 12:43:24 +0000 Tue, 17 Sep 2019 02:43:53 +0000 0 2 <p>Using the “crude” selection defined at <a href="https://pfspipe.ipmu.jp/jira/browse/PIPE2D-383" class="external-link" rel="nofollow">PIPE2D-383</a> and the HSC objects with g &lt; 23 at <a href="https://pfspipe.ipmu.jp/jira/browse/PIPE2D-382" class="external-link" rel="nofollow">PIPE2D-382</a>, F star candidates are selected and their density maps are created at each survey field. The figure is an example of the density maps. (A high density at R.A. ~ 31 deg is due to a star cluster. )</p> <p><span class="image-wrap" style=""><a id="11929_thumb" href="https://pfspipe.ipmu.jp/jira/secure/attachment/11929/11929_HSCFstar_DensityMap_pW02_20190426.png" title="HSCFstar_DensityMap_pW02_20190426.png" file-preview-type="image" file-preview-id="11929" file-preview-title="HSCFstar_DensityMap_pW02_20190426.png"><img src="https://pfspipe.ipmu.jp/jira/secure/thumbnail/11929/_thumb_11929.png" style="border: 0px solid black" /></a></span></p> <p>The methodology to estimate the spatial density of the selected F-stars was studied. We will re-make the density map using an updated selection criteria for F-stars.</p> Relates PIPE2D-361 Development Epic Link PIPE2D-303 Rank 0|02qpt6:508yl03zc09 Reviewers msyktnk Sprint 2DDRP-2019 C 2DDRP-2019 D 2DDRP-2019 E 2DDRP-2019 F 2DDRP-2019 G Story Points 4.0