The Transformation of SN1987A into a Supernova Remnant

SN1987A 转变为超新星遗迹

基本信息

批准号：
0206048
负责人：
Arlin P. Crotts
金额：
$ 20.81万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2002
资助国家：
美国
起止时间：
2002-07-01 至 2005-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0206048&HistoricalAwards=false
关键词：
Transformation SN1987A into Supernova Remnant

项目摘要

AST-0206048CrottsSupernova 1987A, the closest SN seen in nearly four centuries, and the most intenselystudied ever, is rapidly turning into a SN remnant as the ejecta from the explosion nowstrikes the circumstellar envelope shed by the star over the last million years. We proposeto observe this process using a combination of optical, IR and UV programs, plus furtherspace-based studies (supported by NASA). These will allow us to map the structure ofthe envelope, both in its unperturbed state and as it is destroyed by the ejecta. Thiswill allow the first complete study of SN remnant formation evolution ever undertaken.Our previous observations of the 3-D structure, velocities, density and composition willestablish the nature of the pre-explosion nebula and the mass loss processes that created it,while the excitation of this nebula by the X and EUV flux created in the collision will allowus to re-analyze it once more. In addition to these unprecedented studies of a SN remnant,will continue to use light echoes from the SN explosion to explore the interstellarmedium in the 30 Doradus star-formation region, to study the echo of the UV pulse fromSN shock breakout through the progenitor star's surface, and to accurately determine thedistance to the Large Magellanic Cloud { a fundamental rung on the extragalactic distanceladder.***

AST-0206048 Crottssupernova 1987a，是近四个世纪以来最接近的SN，也是有史以来最深刻的SN，正迅速变成SN残留物，因为爆炸现在从爆炸中弹出，这是在过去一百万年内，恒星散发出的恒星。我们建议使用光学，IR和UV程序的组合以及基于空间的研究（由NASA支持）来观察此过程。这些将使我们能够以其不受干扰的状态以及被喷射销毁的状态绘制信封的结构。这意想会允许对SN残留形成进化进行首次完整的研究。我们先前对3-D结构，速度，密度和成分的观察将意志建立前探索前的NEBULA的性质以及创造它的大规模损失过程，而X和EUV在碰撞中产生的Nebula激励会允许RE-anyaly re-anyaly collux frux frux frux the the collux frux允许它更多。 In addition to these unprecedented studies of a SN remnant,will continue to use light echoes from the SN explosion to explore the interstellarmedium in the 30 Doradus star-formation region, to study the echo of the UV pulse fromSN shock breakout through the progenitor star's surface, and to accurately determine thedistance to the Large Magellanic Cloud { a fundamental rung on the extragalactic Distanceladder。***