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A new-speckle interferometry system for the MAMA detectorWe have developed a new system for making speckle observations with the multianode microchannel array (MAMA) detector. This system is a true photon-counting imaging device which records the arrival time of every detected photon and allows for reconstruction of image features near the diffraction limit of the telescope. We present a description of the system and summary of observational results obtained at the Lick Observatory 1-m reflector in 1991 September. The diffraction limit of the 1-m telescope at 5029 A is about 0.125 arcsec and we have successfully resolved the catalogued interferometric binary HD 202582 with a separation of 0.157 +/- 0.031 arcsec. A pair of stars in the open cluster Chi Persei separated by 2.65 +/- 0.22 arcsec with approximate V magnitudes 8.6 and 11.5 has also been successfully analyzed with the speckle technique.
Document ID
19930029662
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Horch, E.
(Stanford Univ. CA, United States)
Morgan, J. S.
(Washington Univ. Seattle, United States)
Giaretta, G.
(Stanford Univ. CA, United States)
Kasle, D. B.
(NASA Goddard Space Flight Center Greenbelt, MD; Stanford Univ., CA, United States)
Date Acquired
August 15, 2013
Publication Date
October 1, 1992
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 104
Issue: 680
ISSN: 0004-6280
Subject Category
Instrumentation And Photography
Accession Number
93A13659
Funding Number(s)
CONTRACT_GRANT: NAGW-1140
CONTRACT_GRANT: NAS5-29389
Distribution Limits
Public
Copyright
Other

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