PFS-JIRA https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 [PIPE2D-538] Stellar typing using broad band photometries https://pfspipe.ipmu.jp/jira/browse/PIPE2D-538 DRP 2-D Pipeline <p>This is a collection of stories/tasks for broad-band stellar typing. </p> PIPE2D-538 Stellar typing using broad band photometries Story Normal Done Done Takuji Yamashita Takuji Yamashita Tue, 7 Apr 2020 09:35:38 +0000 Mon, 4 Jan 2021 20:23:14 +0000 Tue, 13 Oct 2020 00:02:38 +0000 0 2 <p>This is a figure including all the cases of broad band stellar typing using PS1, SDSS, and Gaia. The sample consists of 22 stars with no photometry problems in all the catalogs. The stars meet the crude color selection for F-stars defined in <a href="https://pfspipe.ipmu.jp/jira/browse/PIPE2D-383" title="Define crude criteria to select F-stars from HSC photometry" class="issue-link" data-issue-key="PIPE2D-383"><del>PIPE2D-383</del></a>. </p> <p><span class="image-wrap" style=""><a id="13114_thumb" href="https://pfspipe.ipmu.jp/jira/secure/attachment/13114/13114_stats_sigmclipRMS.png" title="stats_sigmclipRMS.png" file-preview-type="image" file-preview-id="13114" file-preview-title="stats_sigmclipRMS.png"><img src="https://pfspipe.ipmu.jp/jira/secure/thumbnail/13113/_thumb_13113.png" height="59" width="281" style="border: 0px solid black" /></a></span></p> <p>There are five cases that use a different photometry set: PS1 grizy, PS1 grizy + SDSS u-band, SDSS ugriz, SDSS griz (without u), Gaia GBpRp.</p> <p>The robust (sigma clipping) RMSs of fractional residuals of each case are about 3-4%. There is no big difference among the cases. If we add SDSS-u to PS1, we can get a bit better result.  <span class="image-wrap" style=""><a id="13114_thumb" href="https://pfspipe.ipmu.jp/jira/secure/attachment/13114/13114_stats_sigmclipRMS.png" title="stats_sigmclipRMS.png" file-preview-type="image" file-preview-id="13114" file-preview-title="stats_sigmclipRMS.png"><img src="https://pfspipe.ipmu.jp/jira/secure/thumbnail/13114/_thumb_13114.png" style="border: 0px solid black" /></a></span></p> <p>The largest RMS at PS1 g-r~0.33 is due to a double peak of its probability distribution in log g. This could be improved by a spectral typing. </p> <p> </p> <p> </p> <p>We can close this ticket and all of the blocking tickets. There were no concerns in 2DDRP telecons. In the future, we will revisit broad band stellar typing tasks (new tickets) to do the code implementation and to fix problems (if needed).</p> Blocks PIPE2D-539 PIPE2D-634 PIPE2D-642 Development Rank 0|02qps0:1 Reviewers hassan Sprint 2DDRP-2021 A