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-564 DRP 2-D Pipeline <p>When doing preliminary analysis of the solution in <a href="https://pfspipe.ipmu.jp/jira/browse/PIPE2D-521" title="Create global PSF solutions for the July 2019, using 2020 improvments" class="issue-link" data-issue-key="PIPE2D-521"><del>PIPE2D-521</del></a> I noticed that some nearby lines have quite different solutions in the wings. For example, this can be seen for fibers 339 and 401 around the y-position of 400. Investigate what is the cause of this effect. </p> PIPE2D-564

Investigate discontinuity in some of the April 2020 PSF solutions

Task Normal Done Done ncaplar ncaplar Wed, 22 Apr 2020 16:09:37 +0000 Mon, 4 Jan 2021 20:23:16 +0000 Tue, 12 May 2020 02:08:24 +0000 0 1 <p>The reason why there is some discontinuity is that there are more broad lines. Out of 4 HgI lines in the red, I have identified two HgAr lines, at 690 and 708 are obviously broader then nearby Neon lines. The flux for other lines is too low to make firm conclusions.</p> <p> </p> <p>I have been using the line at 690 in my solutions. I will have to artificially narrow that line (as in <a href="https://pfspipe.ipmu.jp/jira/browse/PIPE2D-561" title="Broad lines are messing up global PSF solutions " class="issue-link" data-issue-key="PIPE2D-561"><del>PIPE2D-561</del></a>). I will close this ticket when I have done so.</p> <p> </p> <p>Talked with Jim this morning (Mon, April 27, 2020). Jim suggests:</p> <p> </p> <ol> <li>Checking if this is allowed transition to the ground state i.e., if this is the same effect as seen in Argon lines. To do this, calculate the energy of the transition from NIST line list, transform to wavelength, and then compare with a list of known transition lines from the ``literature''.</li> <li>Compare the widths of Hg lines in the blue and see if only some lines exhibit this new broadening. </li> </ol> <p>I will close this ticket and put the suggestion by Jim in new tickets for future work. </p> Relates PIPE2D-582 Development Rank 0|02qps1:1 Sprint 2DDRP-2021 A Story Points 2.0