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首页> 外文期刊>The Journal of the American Association of Variable Star Observers >Abstracts of Papers and Posters Presented at the 99th Annual Meeting of theAAVSO, Held in Woburn, Massachusetts, October 29-30,2010
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Abstracts of Papers and Posters Presented at the 99th Annual Meeting of theAAVSO, Held in Woburn, Massachusetts, October 29-30,2010

机译：在2010年10月29日至30日在美国马萨诸塞州沃本市举行的AAVSO第99届年会上发表的论文和海报摘要

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摘要

We report on the 2010 eruption of the recurrent nova U Scorpii. This outburst was predicted in 2005 and discovered independently by AAVSO observers Barbara G. Harris and Shawn Dvorak on 28 January 2010 as a result of a monitoring program coordinated by our group at LSU in conjunction with theAAVSO. The eruption lasted approximately 64 days, over the course of which more than 35,000 pre-arranged and serendipitous observations were made in all wavelengths from radio to x-ray. We present multi-wavelength light curves (UBVRIJHKby-FUV+x-ray) of the entire eruption which show the overall speed of the event, the expected first plateau, the unexpected second plateau, and the return to quiescence. As anticipated, the onset ofthe optical plateau coincided with the turn-on of the supersoft x-ray emission and the re-emergence of the eclipses. Our comprehensive coverage shows fine-scale phenomena as well, such as flares of up to 0.5 magnitude in amplitude during the initial fast decline which are as yet unexplained and late aperiodic dips (distinct from the well-known eclipses) that are likely caused by accretion disk geometry.
机译：我们报告了2010年复发的新星U Scorpii的爆发。由于我们小组在路易斯安那州立大学（LSU）与AAVSO共同协调的监测计划的结果，这一爆发是在2005年预测的，并由AAVSO观察员Barbara G. Harris和Shawn Dvorak在2010年1月28日独立发现。喷发持续了大约64天，在此过程中，从无线电到X射线的所有波长下，都进行了超过35,000次的预先安排和偶然的观测。我们给出了整个喷发的多波长光曲线（UBVRIJHKby-FUV + x射线），显示了事件的总体速度，预期的第一个平稳期，意外的第二个平稳期以及恢复到静止状态。如预期的那样，光学平台的开始与超软X射线发射的开启和日食的再次出现相吻合。我们全面的覆盖范围还显示了精细的现象，例如尚未解释的初始快速下降期间振幅高达0.5级的耀斑，以及可能由增生引起的后期非周期性下降（与众所周知的月食不同）磁盘几何。

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