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(1999)Conference PaperLinking and loading are the final steps in preparing a program for execution. This paper assesses issues concerning dynamic and static linking in traditional as well as single-address-space operating systems (SASOS). Related loading issues are also addressed. We present the dynamic linking model implemented in the Mungi SASOS and discuss its strengths and limitations. Benchmarking shows that dynamic linking in Mungi carries less overhead than dynamic linking in SGI`s Irix operating system
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(1999)Conference Paper
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(1999)Journal ArticleUsing near-infrared imaging and spectroscopy, we discuss the discovery of six emission-line sources within 20 pc of Sgr A West but outside of the central parsec. The objects are coincident with stars seen in the J, H, and K images; all have Brγ (2.166 μm) in emission, several also have He i (2.058 and 2.112/3 μm), and some have He ii (2.189 μm) emission lines. Comparison of the H- and K-band spectra of the newly discovered stars with recently published infrared spectral atlases of optically classified stars suggests that most of these stars are similar to massive stars in transition (e.g., Ofpe/WN9, B[e], and LBV), although one is definitely a WN6 star. Two of the potential stars are associated with the radio emission regions A–D near Sgr A East, three are near or within the radio emission regions H1–H8 (nomenclature from Yusef-Zadeh & Morris), the last is near G0.10+0.02 and is likely to be associated with the G0.12+0.02 (Arches) cluster of stars, discussed in a previous paper. The stars are shown to be significant sources of ionization for their associated radio emission regions, with several capable of completely ionizing the regions. These results provide additional support for the idea that these thermal radio regions, and similar such regions in the Galactic center, are indeed photoionized by hot young stars.
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