Significance of Plasma Levels of N-Terminal Pro-B-Type Natriuretic Peptide on Left Ventricular Remodeling in Non-Obstructive Hypertrophic Cardiomyopathy Attributable to the Asp175Asn Mutation in the &

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• 作者：Jarkko Magga ; Petri Sipola ; Olli Vuolteenaho ; Juha Risteli ; Pertti Jä ; ä ; skelä ; inen ; Keijo Peuhkurinen ; Johanna Kuusisto
• 关键词：Stars ; mass loss ; ISM ; planetary nebulae ; general ; ISM ; jets and outflows ; X-rays ; ISM
• 刊名：The American Journal of Cardiology
• 出版年：2008
• 出版时间：15 April 2008
• 年：2008
• 卷：101
• 期：8
• 页码：1185-1190
• 全文大小：149 K

文摘

We conduct 2D numerical simulations of jets expanding into the slow wind of asymptotic giant branch stars. We show that the post-shock jets’ material can explain the observed extended X-ray emission from some planetary nebulae (PNs). Such jets are thought to shape many PNs, and therefore it is expected that this process will contribute to the X-ray emission from some PNs. In other PNs (not simulated in this work) the source of the extended X-ray emission is the shocked spherical wind blown by the central star. In a small fraction of PNs both sources might contribute, and a two-temperatures gas will fit better the X-ray properties than a one-temperature gas. A spatial separation between these two components is expected.