The Earliest Production of Hot Gas in Young Planetary Nebulae

Details The Earliest Production of Hot Gas in Young Planetary Nebulae The Earliest Production of Hot Gas in Young Planetary Nebulae

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop...95g&link_type=abstract

XMM-Newton Proposal ID #04023801

Physics

Stars, White Dwarfs, Solar System, Hen 3-1357, Xmm-Newton Proposal 04023801

Scientific paper

Planetary nebulae (PNe) consist of stellar material ejected by stars with masses lower than 8-10 solar masses. Both fast stellar winds and collimated outflows contribute to the shaping of PN shells and fill the shell interiors with shock-heated gas at temperatures higher than 10E6 K. XMM- Newton and Chandra observations have produced the first unambiguous detections of diffuse X- ray emission from PNe, but the observed X-ray luminosities of PNe are generally much lower than theoretical expectations. Observations of a few young PNe hint at a short-lived phase of bright X- ray emission in early evolutionary stages. We request XMM-Newton observations of 4 very young PNe to further investigate the earliest history and physical conditions of hot gas produced by fast winds and collimated outflows in PNe.

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