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Discovery of a nitrogen-rich UV-bright star in the globular cluster M5Observations of a UV bright source in the globular cluster M5 using instrumentation on the Black Brant rocket are reported. Imagery was obtained by two cameras operating at 1540 A and 2360 A and bandpasses of 350 A and 880 A. The instruments are prototypes for cameras to be flown with the Spacelab. The UV-emitting object in the cluster was located off-center. Comparison of the data with data from the IUE for short-wavelength radiation indicated a temperature in the range 25,000-50,000 K, with a dereddened flux for the continuum near 1550 A of 4.2 x 10 to the -13th ergs/sq cm per sec per A. The object is concluded to be a post-AGB star with an envelope which has experienced CNO processing.
Document ID
19830050227
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/184009
Authors
Bohlin, R. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Smith, A. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stecher, T. P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sweigart, A. V. (NASA Goddard Space Flight Center Labortory for Astronomy and Solar Physics, Greenbelt, MD, United States)
Cornett, R. H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hill, J. K. (Systems and Applied Sciences Corp. Bladensburg, MD, United States)
Date Acquired
August 11, 2013
Publication Date
April 15, 1983
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 267
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
83A31445
Distribution Limits
Public
Copyright
Other

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