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X-ray Energy Spectra of the Super-soft X-ray Sources CAL87 and RXJ0925.7-4758 Observed with ASCA
K. Ebisawa, K. Mukai, T. Kotani +7
We report observation results of the super-soft X-ray sources (SSS) CAL87 and RXJ0925.7-4758 with the X-ray CCD cameras (Solid-state Imaging Spectrometer; SIS) on-board the ASCA sa…
X-Ray Flux Decrease of the Accretion-Powered Millisecond Pulsar SAX J1808.4-3658 in Quiescence Detected by ASCA
Tadayasu Dotani, Kazumi Asai, Rudy Wijnands
The accretion-powered millisecond X-ray pulsar, SAX J1808.4-3658, was observed in quiescence with ASCA in September 1999. We detected a dim X-ray source in the SIS data at the posi…
Search for Millisecond Periodicities in Type I X-ray Bursts of the Rapid Burster
D. W. Fox, W. H. G. Lewin, R. E. Rutledge +8
We have searched the rising portion of type I X-ray bursts observed from the Rapid Burster with the Rossi X-ray Timing Explorer for the presence of periodicities. The 95 per cent c…
Observations of Spectral and Time Variabilities from MCG-2-58-22
Chul-Sung Choi, Tadayasu Dotani, Insu Yi +1
We present results from analysis of the X-ray archive data of MCG-2-58-22, acquired with ROSAT from 1991 to 1993 and with ASCA from 1993 to 1997. By analyzing light curves, we find…
A Giant Glitch in the Energetic 69 ms X-ray Pulsar AXS J161730-505505
K. Torii, E. V. Gotthelf, G. Vasisht +2
We present new results on the recently discovered 69 ms X-ray pulsar AXS J161730-505505, the sixth youngest sample of all known pulsars. We have undertaken a comprehensive X-ray ob…
Erratum: ASCA Observations of the Absorption-Line Features from the Super-Luminal Jet Source GRS 1915+105
Taro Kotani, Ken Ebisawa, Tadayasu Dotani +4
We have discovered errors in the calculation of some of the Einstein coefficients in Table 5 and some plots in Figure 3. Due to the errors, the square-root section of the curves of…