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The superorbital variability and triple nature of the X-ray source 4U 1820–303

✍ Scribed by Andrzej A. Zdziarski; Linqing Wen; Marek Gierliński


Book ID
110841852
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
633 KB
Volume
377
Category
Article
ISSN
0035-8711

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The spectral and temporal variability of
✍ A. N. Parmar; L. Stella; N. E. White 📂 Article 📅 1985 🏛 Springer Netherlands 🌐 English ⚖ 377 KB

We present the results of four observations made by the European Space Agency's EXOSAT Observatory of the X-ray transient 4U1630-47 during its 1984 outburst. We observed marked spectral changes as the source decayed from a maximum observed intensity of 8x10 -9 erg/cm2/sec (1.5-10 keV). The spectrum