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-1004 DRP 2-D Pipeline <p>When examining the new features to be included in the future release, some questions came up about two lambda and flux calibration parts, namely at which stage (1D or 2D) shall be done the following (if needed) :</p> <ul> <li>The Milky Way ISM absorption. If not taken into account in the 2D calibration, we have to apply it in the 1D to get a better estimation of the continuum shape</li> <li>The referential in which the redshift is to be calculated. If solar or galactocentric, the transformation from the Earth value has to be treated either in 2D or 1D</li> </ul> PIPE2D-1004

Calibrations questions

Task Normal Open Unresolved Unassigned vlebrun Tue, 15 Mar 2022 13:57:12 +0000 Fri, 13 Jan 2023 01:24:46 +0000 0 3 <p>2-D will not be correcting for Milky Way absorption, we will attempt to estimate the spectrum at the top of the atmosphere. 2-D only handles things that it knows better than 1-D (e.g. fibre extractions, PSFs, sky, standard stars), and the ISM absorption for a given object is not one of them.</p> <p>Making RHL's statement more explicit with regards to the second question: I understand that 2D has responsibility for the barycentric correction, but that is not yet implemented.</p> <p>That was indeed quite implicit, then we'll take care of ISM and will leave you with velocities.</p> <p>Not just implicit, I read your words about "solar or galactocentric" and stopped paying attention.</p> <p>Paul is correct: 2-D should reduce wavelengths to barycentric. It's up to 1-D to choose a coordinate system and calculate velocities.</p> Development Rank 0|zzst9o:r