Stephanie Zonak's Research

Stephanie Zonak

I am a part of the Laboratory for Millimeter Astronomy at the University of Maryland in College Park. The focus of my research is in instrumentation, specifically geared towards the observations of high-redshift CO in galaxies.

ADS Listing for past 5 years

Research work
We have built an ultra-wideband spectrometer, the Zpectrometer, that is currently installed on the Green Bank Telescope in West Virginia. The Zpectrometer is designed to interface with the Ka-band receiver (26 - 40 GHz). The fabrication was completed in the summer of 2006. My specific task in the fabrication was to build a four-channel downconverter that takes the signal from the Ka-band receiver, splits it four ways, filters it into four separate bands and then outputs four signals with a band stretching from 4 - 8 GHz. The output of the downconverter is then fed into 4 correlator backends. The Zpectrometer is now online with the most recent observations being taken in February 2008.

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