منابع مشابه
The new long-period AM Herculis system RX J0203.8+2959
We present the first detailed multi-wavelength study of the ROSAT-discovered AM Herculis binary RX J0203.8+2959 comprising extended CCD and photoelectric photometry, phase-resolved spectroscopy with high and low spectral resolution and pointed ROSAT observations with the PSPC and the HRI. Between 1992 and 1997 the system displayed states of high and low accretion with mean brightness levels of ...
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Thirty-one meningococcal isolates from carriers and disease cases belonging to the sequence type (ST) 162 complex, isolated in Greece in 1999 and 2000, were studied by the use of variable-number tandem repeat analysis. Our study demonstrated that the isolates belonging to the ST-162 clonal complex were a heterogeneous group. Based on this heterogeneity, it is unlikely that the disease-associate...
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When accretion temporarily ceases in the polar AMHer, the emission-line profiles are known to develop several distinct components, whose origin remains poorly understood. The new low-state spectra reported here have a more favorable combination of spectral resolution (R 4500), time resolution ( 3 minute exposures), and S/N than earlier work, revealing additional details of the orbital dependenc...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1904
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19041661805