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The pursuit of heavy elements in the HgMn-type star Chi Lupi: Observations with the GHRS in the COSTAR eraObservations of the ultra-sharp-lined HgMn star Chi Lupi made with the Goddard High Resolution Spectrograph (GHRS) after the Hubble Space Telescope (HST) First Servicing Mission display the effect of the Corrective Optics Space Telescope Axial Replacement instrument (COSTAR) upon the spectral resolution of several observing modes. The resolution is restored to levels expected in the absence of the telescope spherical aberration for all observations made through the GHRS Large Science Aperture (LSA). The Small Science Aperture (SSA) spectra are nearly identical in resolution to the pre-COSTAR values while benefiting from higher throughput. The line spread function for the LSA relative to the SSA shows little wavelength dependence and reflects a Gaussian profile approximately 20%-30% broader than for SSA spectra. Absorption features containing components of As II and Bi II represent upper limit enhancements of 2.9 and 2.1 dex for As II and Bi II, respectively, relative to meteoritic abundance determinations.
Document ID
19950040563
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Wahlgren, Glenn M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brage, Tomas
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gilliland, Ronald L.
(Space Telescope Science Inst. Baltimore, MD, United States)
Johansson, Sveneric G.
(Univ. of Lund Lund, Sweden)
Leckrone, David S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lindler, Don J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Litzen, Ulf
(Univ. of Lund Lund, Sweden)
Date Acquired
August 16, 2013
Publication Date
November 1, 1994
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 435
Issue: 1
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
95A72162
Funding Number(s)
CONTRACT_GRANT: NAS5-26555
CONTRACT_GRANT: NAS5-30523
Distribution Limits
Public
Copyright
Other

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