The Rapid Oscillations in the Solar Atmosphere (ROSA) instrument is a synchronized, six-camera high-cadence solar imaging instrument developed by Queen's University Belfast. The system is available on the Dunn Solar Telescope at the National Solar Observatory in Sunspot, New Mexico, USA, as a common-user instrument. Consisting of six 1k x 1k Peltier-cooled frame-transfer CCD cameras with very low noise (0.02 -aEuro parts per thousand 15 e s(-1) pixel(-1)), each ROSA camera is capable of full-chip readout speeds in excess of 30 Hz, or 200 Hz when the CCD is windowed. Combining multiple cameras and fast readout rates, ROSA will accumulate approximately 12 TB of data per 8 hours observing. Following successful commissioning during August 2008, ROSA will allow for multi-wavelength studies of the solar atmosphere at a high temporal resolution.
Bibliographical noteThis work was supported by the U.K. Science and Technology Facilities Council
and D.B.J. wishes to thank the Science and Technology Facilities Council for the award of a Post-Doctoral
Fellowship. F.P.K. is grateful to AWE Aldermaston for the award of a William Penney Fellowship. P.J.C.
thanks the Northern Ireland Department for Employment and Learning for a PhD studentship. Observations
were obtained at the National Solar Observatory, operated by the Association of Universities for Research in
Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation. Finally, we
would like to thank the technical staff at the DST for perseverance in the face of seemingly endless camera
and ?lter arrangements
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics