منابع مشابه
Swift , RXTE , and INTEGRAL observation of Swift J 1922 . 7 - 1716
the date of receipt and acceptance should be inserted later Abstract. We report the results of analyzing Swift, RossiXTE, and INTEGRAL data of Swift J1922.7-1716, a likely transient X-ray source discovered by Swift/BAT. Both the fast variability measured by the RXTE/PCA and the combined Swift/XRT, RXTE/PCA, and INTEGRAL/ISGRI (0.5–100 keV) energy spectrum suggest that the system is a neutron-st...
متن کاملHigh - redshift blazar identification for Swift J 1656 . 3 − 3302 ⋆
We report on the high-redshift blazar identification of a new gamma–ray source, Swift J1656.3−3302, detected with the BAT imager onboard the Swift satellite and the IBIS instrument on the INTEGRAL satellite. Follow-up optical spectroscopy has allowed us to identify the counterpart as an R ∼ 19 mag source that shows broad Lyman-α, Si iv, He ii, C iv, and C iii] emission lines at redshift z = 2.4...
متن کاملSwift Observations of 1 Fgl J 1018 . 6 − 5856
We report on X-ray properties of the gamma-ray binary 1FGL J1018.6−5856 using observations obtained with the Swift X-ray telescope. Using 54 observations made between MJD 55575 and 55984, we find that the X-ray flux is modulated at a period of 16.57 ± 0.11 days, consistent with previous reports based on gamma-ray data. We find that the X-ray maximum at phase 0 previously reported may not be a p...
متن کاملJ. M. Rattray
The death of Dr. John Moysey Rattray on November 4th, aged 65, causes a gap among our older medical colleagues ; for although he had retired from his practice at Frome, he retained his untiring interest in all that concerned the profession he had served so well, and that cheerful, bright, conversational power that rendered him always a delightful companion, and made one forget that he was no lo...
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ژورنال
عنوان ژورنال: Nature
سال: 1942
ISSN: 0028-0836,1476-4687
DOI: 10.1038/150762a0