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DESI tutorials
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Tutorial on subselecting and combining spectra #95

Closed sbailey closed 10 months ago

sbailey commented 11 months ago

This PR adds a new getting_started tutorial on how to read in multiple spectra files, slice them to selected objects, combine them, and re-write to a new spectra file with an associated redshift catalog. The idea is that this can be used to subselect objects of interest for future analysis work without having to re-read + re-filter every file every time.

This tutorial is motivated by part of @deisenstein 's question on Slack from a few weeks ago about how to combine spectra and Prospect plot them (though it doesn't cover the Prospect part, which could be another tutorial).

I'll add our new tutorial coordinator Farnik after I have his GitHub ID, but in the meantime I'll mention @forero and @stephjuneau as our former tutorial coordinators.