A Robotic Wide-Angle H-Alpha Survey of the Southern Sky

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dc.creatorGaustad, J. E.
dc.creatorMcCullough, P. R.
dc.creatorRosing, W.
dc.creatorVan Buren, D.
dc.date2001-08-31
dc.date.accessioned2026-07-07T11:45:59Z
dc.date.available2026-07-07T11:45:59Z
dc.descriptionWe have completed a robotic wide-angle imaging survey of the southern sky (declination less than +15 degrees) at 656.3 nm wavelength, the H-alpha emission line of hydrogen. Each image of the resulting Southern H-Alpha Sky Survey Atlas (SHASSA) covers an area of the sky 13 degrees square at an angular resolution of approximately 0.8 arcminute, and reaches a sensitivity level of 2 rayleigh (1.2 x 10^-17 erg cm^-2 s^-1 arcsec^-2) per pixel, corresponding to an emission measure of 4 cm^-6 pc, and to a brightness temperature for microwave free-free emission of 12 microkelvins at 30 GHz. Smoothing over several pixels allows features as faint as 0.5 rayleigh to be detected.
dc.descriptionLATEX, 33 pages, 15 figures. Accepted for publication in PASP, 113, November 2001. Further information at http://amundsen.swarthmore.edu/SHASSA/
dc.identifierhttps://arxiv.org/abs/astro-ph/0108518
dc.identifierhttp://arxiv.org/abs/astro-ph/0108518
dc.identifierPubl.Astron.Soc.Pac.113:1326-1348,2001
dc.identifierdoi:10.1086/323969
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202067
dc.subjectAstrophysics
dc.titleA Robotic Wide-Angle H-Alpha Survey of the Southern Sky
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