UA Science

Courtesy Caltech and Steward

SPHEREx MIDEX Mission Approved: Krause and Eifler Are Team Members

On Feb 13 NASA announced the selection of a new space mission that will help astronomers understand both how our universe evolved and how common are the ingredients for life in our galaxy’s planetary systems. The SPHEREx mission (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) is a planned two-year endeavor funded at $242 million (not including launch costs) and targeted to launch in 2023. SPHEREx will survey the sky in optical as well as near-infrared light and serve as a powerful tool...

Beijing-Arizona Sky Survey Completed

The Beijing-Arizona Sky Survey (BASS) completed its observations on the Bok Telescope on February 13, 2019, after surveying the sky for 375 nights over the last four years. The BASS survey is an ambitious wide-field multicolor survey of 5000 square degrees of the Northern Galactic Cap, using Steward Observatory's 2.3m Bok Telescope and its 90Prime imager at Kitt Peak. It is an international collaboration between the Chinese team led by NAOC and the US team led by Steward Observatory. The survey is led by Drs. Xu Zhou and Hu Zou at NAOC and Dr. Xiaohui Fan at UA.

The BASS survey is part of the DESI Legacy Imaging Surveys, which use three telescopes: the 4-meter Blanco Telescope in Chile (the DECam Legacy Survey, or DECaLS), the Mayall 4-meter telescope at Kitt Peak (the Mosaic z-band Legacy Survey, or MzLS), and Bok, to image about 14,000 square degrees of the sky to approximately 24 magnitude in 3 optical bands, to a depth of...

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