The Early Onset of X-ray Emission from Planetary Nebulae

Details The Early Onset of X-ray Emission from Planetary Nebulae The Early Onset of X-ray Emission from Planetary Nebulae

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1380k&link_type=abstract

Chandra Proposal ID #05200140

Physics

Chandra Proposal Id #05200140

Scientific paper

CXO has ushered in a new era in the study of planetary nebulae (PNs), with its discoveries of diffuse X-ray emission from a handful of PNs. These first results have raised fundamental questions concerning the varied optical and X-ray morphologies of PNs. Our small survey targets a PN parameter space --- specifically, young PNs with Wolf-Rayet central stars --- that should provide answers. These ``[WC] PNs'' are presently driving fast, massive winds into material ejected during their (recently terminated) red giant evolution. High-resolution X-ray imaging of WC PNs will offer unique insight into the early onset of PN X-ray emission and, hence, the wind collision processes that shape PNs. HST images will establish whether and how absorption determines X-ray morphology.

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