Polarimetric and spectroscopic optical observations of the ultra-compact X-ray binary 4U 0614+091
نویسندگان
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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Context. The X–ray burster 4U 1850−087, located in the Galactic globular cluster NGC 6712, is an ultracompact binary (orbital period ∼21 minutes), likely harbouring a degenerate companion. Aims. The source has been observed at soft γ-rays several times with the INTEGRAL satellite, during the monitoring of the Galactic plane, with an unprecedented exposure time. We analysed all available INTEGRA...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2014
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201424665