TOGS and

TOGS (Turn On GALFA Survey) covers the majority of the Arecibo sky with commensal drift scan observations. (See sky coverage link below.) It is part of the GALFA-HI Survey (Galactic Arecibo L-band Feed Array HI Survey) which will map the Galaxy, Galactic Halo, and Local Group (+/- 700 km/s) over the entire Arecibo sky (Decl. -1 to +38 deg) with a resolution of 3.5' and 0.2 km/s. (See also the Arecibo GALFA page.) TOGS offers up to 5 times the sensitivity of previous surveys at much better spatial and kinematic resolution.

Overview of TOGS (ppt document in pdf format)

TOGS Proposal

TOGS Folks

TOGS Observing Links

Other Related Links

Sky Coverage Images




The contrast in resolution of LDS/LAB data (0.6 deg beam; Kalberla et al. 2005) to GALFA data (3.4 arcminute beam). (Figure created by C. Heiles.)