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Publications (1)2.07 Total impact

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    ABSTRACT: We report on the ASCA results of a featureless X-ray spectrum from RX J1713.7–3946, a new shell-like SNR discovered with the ROSAT all-sky survey. The northwest part of RX J1713.7–3946 was in the field of the ASCA Galactic Plane Survey Project, and was found to exhibit a shell-like structure. The spectrum, however, shows neither line emission nor any signature of a thermal origin. Instead, a power-law model with a photon index of 2.4–2.5 gives a reasonable fit to the spectrum, suggesting a non-thermal origin. Together with the similarity to SN 1006, we propose that RX J1713.7–3946 is the second example, after SN 1006, of synchrotron X-ray radiation from a shell of SNRs. Since the synchrotron X-rays suggest the existence of extremely high energy charged particles in the SNR shell, our discovery should have a strong impact on the origin of cosmic X-rays.
    Full-text · Article · May 1997 · Publications- Astronomical Society of Japan