A robotic wide-angle Hα survey of the southern sky

Details A robotic wide-angle Hα survey of the southern sky A robotic wide-angle Hα survey of the southern sky

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000kfnts...3..136g&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, Suppl, no. 3, p. 136-139

Computer Science

Scientific paper

We are conducting a wide-angle imaging survey of the southern sky at 656.3 nm wavelength, the Hα emission line of hydrogen. Each image of the survey covers an area of the sky 13o square at an angular resolution of approximately one arcminute, and reaches a sensitivity level of 0.5 Rayleigh (3×10-18 erg cm-2 s-1 arcsec-2), corresponding to an emission measure of 1 cm-6 pc, and to a brightness temperature for microwave free-free emission of 3 μ K at 30 GHz. The survey is being done with a CCD detector, a commercial camera lens, and narrow-band interference filters, mounted on a robotic telescope platform located at Cerro Tololo Inter-American Observatory in Chile. As of June 2000 the data-gathering phase of the survey was 96% complete, and publication is expected by early 2001.

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