Transit telescope designs optimized for multiple object spectroscopy with fibersInstruments to simultaneously study the spectra of many objects in the field of view of a telescope can be made using fused silica fibers. The spectrograph at the 2.3m telescope of the University of Arizona has been modified for such operation, and is used routinely to study the dynamics of galaxy clusters. Consideration has been given to how the multifiber technique can best be used to obtain spectra of the many faint objects identified by deep transit survey instruments and new space and radio telescopes. A transit survey such as that planned by McGraw et al. (1980), with CCDs at the focus of a 2m transit telescope, will identify objects down to 24th magnitude, and down to 22nd magnitude will give very complete data on variability and optical energy distribution. A telescope with much larger aperture is required for spectroscopic follow up. It is suggested that large telescopes dedicated to this type of work can be made and operated for only a fraction of the cost of a general-purpose telescope.
Document ID
19820064182
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Angel, J. R. P. (Steward Observatory Tucson, AZ, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Subject Category
Astronomy
Meeting Information
Meeting: Instrumentation for astronomy with large optical telescopes