Current and Future IFU Instrumentation at the Sloan 2.5 m Telescope
Abstract
I will discuss the IFU fiber feed system in use for the MaNGA survey in SDSS-IV, which is in the process of obtaining integral field spectroscopy at R~2000 covering 360-1000nm for and unbiased sample of 10k low-redshift galaxies. The bare-fiber IFUs are fabricated using novel hex-ferrule technology which produces very uniform dense hex packaged fiber arrays scalable from 7 fiber up to hundreds or thousands of fibers. MaNGA uses fiber arrays ranging from 19 to 127 fibers. For future projects at the Sloan Foundation 2.5 m telescope as well as other observatories, we are developing large lenslet-coupled hex-ferrule based IFUs of ~1500 fibers (> one arcmin diameter at the 2.5m) as well as scalable fiber array technologies allowing arbitrarily large IFUs made out of smaller abuttable units. I will discuss technologies and plans for such future instrumentation which can be matched to small-aperture telescopes up to ELTs.
- Publication:
-
American Astronomical Society Meeting Abstracts #227
- Pub Date:
- January 2016
- Bibcode:
- 2016AAS...22731212D