A Chandra Catalog of X-Ray Sources in the Central 150 pc of the Galaxy
作者： M. P. Muno , F. E. Bauer , R. M. Bandyopadhyay , Q. D. Wang
DOI: 10.1086/504798
关键词:
摘要: We present the catalog of X-ray sources detected in a shallow Chandra survey inner 2° × 08 Galaxy and two deeper observations Radio Arches Sgr B2. The contains 1352 objects that are highly absorbed (NH 4 1022 cm-2) therefore likely to lie near Galactic center (D ≈ 8 kpc), 549 less within 6 kpc Earth. On basis inferred luminosities expected numbers various classes objects, we suggest with LX 1033 ergs s-1 comprise ≈90% cataclysmic variables ≈100 brighter accreting neutron stars black holes, young isolated pulsars, Wolf-Rayet O (WR/O) colliding-wind binaries. find spatial distribution matches old stellar population observed infrared, which supports our suggestion most variables. However, there is an apparent excess ≈10 bright region. That region already known be site recent star formation, so this high-mass binaries, or WR/O briefly discuss some astrophysical questions can used address.
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