Time-resolved X-Shooter spectra and RXTE light curves of the ultra-compact X-ray binary candidate 4U 0614+091★
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چکیده
منابع مشابه
The Uv Spectrum of the Ultra-compact X-ray Binary– 4u 1626-67
We have obtained Hubble Space Telescope/STIS low-resolution ultraviolet spectra of the Xray pulsar 4U1626-67 (=KZ TrA); 4U 1626-67 is unusual even among X-ray pulsars due to its ultra-short binary period (P=41.4 min) and remarkably low mass-function (≤ 1.3 × 10 M⊙). The far-UV spectrum was exposed for a total of 32ks and has sufficient signal-to-noise to reveal numerous broad emission and promi...
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To confirm the nature of the donor star in the ultra-compact X-ray binary candidate 47 Tuc X9, we obtained optical spectra (3,000–10,000Å) with the Hubble Space Telescope / Space Telescope Imaging Spectrograph. We find no strong emission or absorption features in the spectrum of X9. In particular, we place 3σ upper limits on the H α and He ii λ4686 emission line equivalent widths −EWHα . 14 Å a...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2013
ISSN: 1365-2966,0035-8711
DOI: 10.1093/mnras/sts550