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Andromeda: A mission to determine the gamma-ray burst distance scale

Harrison, Fiona A. and Cook, W. R. and Prince, Thomas A. and Schindler, S. M. and Hailey, C. J. and Thorsett, S. E. (1995) Andromeda: A mission to determine the gamma-ray burst distance scale. In: EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI. Proceedings of SPIE. No.2518. International Society for Optical Engineering , Bellingham, WA, pp. 223-234.

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Andromeda is a wide-field, imaging, hard x-ray/soft gamma-ray instrument capable of detecting gamma-ray bursts (GRBs) a factor approximately 20 times fainter than GRO/BATSE. During one-year of a two-year mission, it could determine whether GRBs are Galactic or cosmological in origin by searching for an excess of bursts towards the nearby Andromeda galaxy (M31). As a pointed, imaging instrument with sensitivity in the 10 - 200 keV band significantly better than previous coded-aperture instruments, Andromeda is capable of carrying out important secondary science objectives: for example, studying the soft-gamma- repeater and x-ray transient populations of M31 and the Galactic bulge. Andromeda is a coded aperture gamma-ray telescope consisting of a hexagonal coded mask coupled to an alkali- halide imaging scintillation detector, a flight-proven technology adapted from the balloon- borne Caltech gamma-ray imaging payload (GRIP). The new instrument is optimized for the 10 - 200 keV band and has 1.5 degree angular resolution over a 17 degree FWHM field of view. Andromeda is designed to be a small, low-cost mission, and draws its design largely from existing instrumentation. Andromeda was submitted to the STEDI program, and will also be proposed as a NASA Small Explorer.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Harrison, Fiona A.0000-0003-2992-8024
Prince, Thomas A.0000-0002-8850-3627
Additional Information:© 1995 SPIE--The International Society for Optical Engineering. We thank all of the members of the Andromeda Working Group (B. Pacynski, D. Chakrabarty, W. Craig, T. T. Hamilton, D. W. Hogg, S. R. Kulkarni, W. H. G. Lewin, P. Podsiadlowski, P. S. Ray, G. Sprehn, H. Tannenbaum) for their contributions to this. work. FAH acknowledges support from a Robert A. Millikan Fellowship.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
Robert A. Millikan FellowshipUNSPECIFIED
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1996-08
Series Name:Proceedings of SPIE
Issue or Number:2518
Record Number:CaltechAUTHORS:20140703-212040890
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46823
Deposited By: Deborah Miles
Deposited On:10 Jul 2014 03:29
Last Modified:10 Nov 2021 17:29

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