Chandra reveals the Dynamic Structure of the Inner Crab Nebula

Details Chandra reveals the Dynamic Structure of the Inner Crab Nebula Chandra reveals the Dynamic Structure of the Inner Crab Nebula

2001-12-11

arxiv.org/abs/astro-ph/0112250v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, To appear in "Neutron Stars in Supernova Remnants" (ASP Conference Proceedings), eds P. O. Slane and B. M.

Scientific paper

We present a series of monitoring observations of the Crab Nebula with the Chandra X-ray Observatory, focusing on the temporal evolution of the structure. This series of 8 observations, spanning a period of approximately six months, shows the dynamic nature of the inner X-ray structures. We detected outward moving ``wisps'' from the recently discovered inner ring seen in optical observations. We also find that the inner ring itself shows temporal variations in structure. The torus also appears to be expanding. Such temporal variations generally match the canonical scenario that an expanding synchrotron nebula injected from the pulsar is confined by the supernova ejecta.

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