Knowledgebase:
How can I learn to work with PACS Spectroscopy?
Posted by Mark Kidger on 13 September 2018 08:55 AM

There are two excellent starting points for learning how to use PACS spectroscopy data. We recommend strongly that you start by reading the Quick Start Guide to Spectroscopy (also known as the PACS Data Reduction Launchpad: Spectroscopy), which summarises the PACS spectroscopy observing modes, data products, calibration uncertainties and science-readiness of the different PACS spectroscopy products.

There is also a Herschel Science Centre short videotutorial called Starting with PACS Spectroscopy, which will walk you through the basics of PACS Spectroscopy. You can find the short videotutorial here:

https://www.youtube.com/watch?v=rcY487Z9Kyg

This short videotutorial will explain the three basic observing modes for PACS spectroscopy and their uses, how to determine from the Herschel Science Archive (HSA), or from the FITs header in which observing mode an observation was made, detailing the main keywords that users should be familiar with. For each product, you will find out which data products you need and what products are available at different levels for the different observing modes. You will learn what the PACS cubes are and their contents for different modes, PACS data tables and so-called slices for each mode, which are the different presentations of the cubes and tables. You will learn what a PACS spectroscopy observation looks like in the HSA and what post-processing (if any) is required for sources of different sizes. Finally, you will see which Highly Processed Data Products (Expert Reduced Data Products) have been prepared by the experts at the Herschel Science Centre for particularly difficult cases.

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