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- W2916859393 abstract "Abstract We present an unprecedented, deep study of the primordial low-mass X-ray binary population in an isolated, lower metallicity environment. We perform follow-up observations of previously identified X-ray binary candidates in the Sculptor Dwarf Galaxy by combining a second Chandra observation with Spitzer and Gemini photometry, as well as Gemini spectroscopy of selected targets. Of the original nine bright X-ray sources identified, we are able to classify all but one as quasars, active galactic nuclei, or background galaxies. We further discover four new X-ray sources in the second-epoch Chandra observation. Three of these new sources are background sources and one is a foreground flaring star. We have found that Sculptor is effectively devoid of X-ray sources above a few 1034 erg s−1. If Sculptor is able to retain primordial binaries at a similar rate to globular clusters, this implies that bright X-ray binaries observed in globular clusters in the present epoch are all formed dynamically." @default.
- W2916859393 created "2019-03-02" @default.
- W2916859393 creator A5023447906 @default.
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- W2916859393 date "2019-02-25" @default.
- W2916859393 modified "2023-09-24" @default.
- W2916859393 title "Multiwavelength survey of X-ray sources in the Sculptor Dwarf Spheroidal Galaxy" @default.
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- W2916859393 doi "https://doi.org/10.1093/mnras/stz554" @default.
- W2916859393 hasPublicationYear "2019" @default.
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