U.S.-Poland Astronomical Research on Physics of Alfven Wave Reflection in Atmospheres of Late-Type Giants and Supergiants

阿拉巴马大学的Zdzislaw Musielak博士和格但斯克大学的Marceli KRogulec博士开展的这项美国-波兰研究项目的主要目标是研究冷恒星将物质返回星际介质的机制。为了做到这一点，研究人员将研究阿尔芬波在晚型巨星和超巨星(恒星)大气中的传播、反射和捕获。这些发现将被用来构建凉爽的大质量恒星风的模型，这些模型解释了观测到的风能和辐射损失。这些结果有望为恒星质量损失提供一个解释，并有助于我们对这类恒星大气中发生的复杂物理现象的基本理解。这个关于恒星和恒星演化的项目通过使美国和波兰的顶尖研究人员能够在平等互利和互惠互利的基础上，在基础科学研究领域共同感兴趣和能力强的领域结合互补的努力和能力，实现了促进科学知识的计划目标。

The primary objective of this U.S.-Poland research project between Dr. Zdzislaw Musielak of the University of Alabama and Dr. Marceli Krogulec of the University of Gdansk is to study the mechanism by which cool stars return matter to the interstellar medium. To do this, the researchers will examine the propagation, reflection and trapping of Alfven waves in atmospheres of late-type giants and supergiants (stars). Findings will be used to construct models of cool massive stellar winds which account for observed wind energetics and radiation losses. Results are expected to provide an explanation of stellar mass loss and contribute to our basic understanding of the complex physics occurring in the atmospheres of such stars. This project on stars and stellar evolution fulfills the program objective of advancing scientific knowledge by enabling leading researchers in the United States and Poland to combine complementary efforts and capabilities in areas of strong mutual interest and competence in the field of basic scientific research on the basis of equality, reciprocity, and mutuality of benefit.