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Abstract Detail

14 January, 2006 - 1:55 PM

Redshift Determination Algorithms from Broadband Spectroscopy Data

M. Yun & M. Heyer (University of Massachusetts/FCRAO)

Advent of receiver systems with a broad bandwidth and new spectrometers that can take advantage of their full bandwidth have broadened the parameter space for radio/mm/submm spectroscopy to the traditional regime of optical and infrared spectroscopy, and entirely new scientific analysis such as blind redshift searches and multi-transition excitation analysis has become feasible for extragalactic systems even at cosmological distances. Most traditional optical spectroscopy techniques such as emission line identification and cross-correlation techniques may be adopted directly for redshift determination, but there are enough distinct advantages and disadvantages to the radio/mm/submm data to warrant some additional considerations. We will review traditional redshift determination algorithms used in the optical regime and identify special concerns for applying them to broadband radio/mm/submm spectroscopic data. We will discuss some of the specific approaches that might work well for the Redshift Receiver System being constructed by the University of Massachusetts group.


Conference Photo by Jim Condon - Click to enlarge