THOR Extended Observations: Spectral Line (3D)

This dataset consists of extended spectral line observations taken by the Very Large Array (VLA), over l = 15° − 67°, |b| ≤ 1°. There are a variety of data products available. The first includes HI 21 cm observations with a bandwidth of 2 MHz and a channel width of 1.953 kHz. This yields a velocity range of ±200 km/s and a spectral resolution of 0.41 km/s. Additional data products available include 4 OH lines (1612, 1665, 1667 and 1720 MHz) and 19 Hα radio recombination lines. As of Fall 2016, they provide the first half of the survey data (HI, OH, and RRL data, along with continuum data) for public download here.