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Spectral Type
The OT offers three kinds of spectral observation:
- Spectral Line - offers maximum flexibility as almost any number of spectral windows can be defined, with user-defined centre frequencies and correlator modes
- Single Continuum - automatically defines a maximum bandwidth (7.5 GHz), low spectral resolution correlator setup. This is most useful for measuring a continuum, but can also be used for observing broad lines
- Spectral Scan - automatically defines a set of multiple tunings which cover a continuous frequency range. This is particularly useful for observations of sources with dense forests of lines, or for redshift searches.
The ALMA OT Team, 2018 Sep 25