Support for a Scientific Meeting on Eta Carinae and the Fate of the MOST Massive Stars; May 23-28, 2004; Jackson Lake Lodge , Grand Teton National Park, Wyoming

支持关于海山二和最大质量恒星命运的科学会议；

基本信息

批准号：
0403638
负责人：
Roberta Humphreys
金额：
$ 1.5万
依托单位：
University of Minnesota-Twin Cities
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2004
资助国家：
美国
起止时间：
2004-04-01 至 2006-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0403638&HistoricalAwards=false
关键词：
Support Scientific Meeting Eta Carinae

项目摘要

AST-0403638PI Humphreys, Roberta M.Eta Carinae is the most massive and most luminous star (5 million times brighter than the Sun) in our region of the Milky Way, and it has received considerable attention by astronomers in the past decade. The cause of its basic instability and its great eruption in the 1840's are still a mystery. It is a very evolved, highly unstable star with an initial mass nearly 150 times greater than the Sun and we think it is nearing the end of its short life. Eta Carinae is also the site of a spectacular bipolar nebula, has the highest continuous mass loss rate for massive stars (about a thousandth of a solar mass each year), and a peculiar 5.5 year cycle of its spectral energy distribution. Furthermore recent extensive surveys for supernovae have also produced a growing class of objects that may not be true supernovae at all, but objects very much like Eta Carinae. This meeting will explore the behavior and characteristics of Eta Carinae and objects related to it, the origin of their instabilities, the final stages of the most massive stars and their relation to large, though not extreme, stellar explosions (hypernovae) and the mysterious Gamma-ray Bursters. It will bring together people working on the most massive stars with those studying their final stages as supernovae and Gamma-ray Bursters. ***

AST-0403638PI HUMPHREYS，Roberta M.Eta Carinae是我们银河系地区最庞大，最发光的恒星（比太阳亮500万倍），并且在过去的十年中，它受到了天文学家的极大关注。其基本不稳定的原因及其在1840年代的巨大喷发仍然是一个谜。这是一个非常发展的，高度不稳定的恒星，最初的质量比太阳大近150倍，我们认为它快到了寿命的尽头。 Eta Carinae也是壮观的双极星云的位置，其巨大恒星的连续质量损失率最高（每年约为太阳能质量的千分之一），并且其光谱能量分布的5.5年周期奇特。此外，最近对超新星的广泛调查也产生了一类越来越多的物体，这些物体可能根本不是真正的超新星，但是对象非常像Eta Carinae。这次会议将探讨ETA Carinae的行为和特征以及与之相关的对象，其不稳定性的起源，最庞大的恒星的最后阶段以及它们与大型但不是极端的巨大爆炸（Hypernovae）和神秘的Gamma-ray攻击者的关系。它将聚集在一起，从事最庞大的恒星工作的人，他们以超新星和伽马射线助攻的最终阶段学习。 ***