(EMIR Multi-line Probe of the ISM Regulating Galaxy Evolution)
(survey of gas in M51a to follow up PAWS)
The EMPIRE Survey
(EMIR Multi-line Probe of the Interstellar Medium Regulating Galaxy Evolution)
is a Survey of gas Spectral Lines in Whirlpool Galaxy,
a Grand Design Spiral Galaxy.
It uses the EMIR instrument on the Gran Telescopio Canarias (GTC).
Whereas PAWS mapped the Carbon Monoxide(1-0) line, this
survey maps molecular lines in the 3mm Atmospheric Window, specifically,
HCN, HCO+, and HNC lines within that window. I gather the
Angular Resolution is about half an arcminute.
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