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arXiv 1306.6933astro-ph.SRphysics.hist-ph
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复发新星T CrB没有在1842年爆发

The Recurrent Nova T CrB Did Not Erupt in 1842

Bradley E. Schaefer

摘要:

复发新星T CrB是1866年第一次被观测到的新星爆发之一,80年后,它在1946年再次爆发。在1866年爆发后不久,约翰·赫歇尔爵士向《月报》报告说,他在1842年6月9日的天空中肉眼看到了同一颗恒星,这意味着24年前有一次爆发。不幸的是,《月报》中的图表含糊不清,令人误解,因此长期以来一直不清楚T CrB是否真的在1842年爆发过。为了解决这个问题,我搜索了各种档案与赫歇尔材料,并找到了他的原始信件。在1866年给威廉·哈金斯的一封信中,赫歇尔附上了他自己的原始观察结果的副本,所有的歧义都解决了。事实证明,赫歇尔所指示的恒星与一颗稳定的背景星(BD+25°3020,V=7.06,G8 V)处于同一位置,而不是T CrB的位置,而且赫歇尔经常看到V=7.5等的恒星,因为他使用了一个歌剧玻璃。因此,没有证据表明1842年发生过T-CrB喷发。

英文摘要:

The recurrent nova T CrB was one of the first well observed nova eruptions in 1866, and 80 years later it erupted again in 1946. Just after the 1866 eruption, Sir John Herschel reported to the Monthly Notices that he had seen the same star in his naked-eye charting of the sky on 1842 June 9, implying that there was a prior eruption 24 years earlier. Unfortunately, the chart in the Monthly Notices was ambiguous and misleading, so it has long been unclear whether T CrB did indeed have an eruption in 1842. To resolve this, I have searched the various archives with Herschel material, and have found his original correspondence. In one letter from 1866 to William Huggins, Herschel enclosed his own copy of his original observations, and with this all the ambiguities are resolved. It turns out that Herschel's indicated star was at the same position as a steady background star (BD+25°3020, V=7.06, G8V) and not that of T CrB, and Herschel regularly was seeing stars as faint as V=7.5 mag because he was using an opera glass. With this, there is no evidence for a T CrB eruption in 1842.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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