南极洲10 Be光谱中的银河系爆发特征揭示了气候转换的宇宙起源
Galactic-bursts signatures in Antarctica 10Be spectra reveal cosmogenesis of climate switching
摘要：
从东方冰芯原始数据中检测到10 Be沉积速率的3592 ± 57年的非常强的周期，并与泰勒穹和东方冰芯的浓度原始数据进行了验证。数据显示Hallstadzeit太阳周期为2296 ± 57年，LaViolette周期为12500年。采用99%置信度的Gauss Vanicek谱分析，避免了数据的篡改，从而实现了反映银河系边界宇宙线背景条件的数据分离。在分离之后，只有新的周期仍然存在并收敛，因此它是太阳系外和银河系的起源。由于10 Be的主要光谱峰只能用宇宙射线的过度涌入来解释，因此发现的特征表明在单一来源中定期发生爆发。根据最近的天空调查，银河系核心是爆发的最佳候选宿主。先前报道的地磁场磁偏角的3600年周期意味着所发现的相位可以在银河系核心到地球的距离上压倒天文磁场。最近的10 Be最大值的时代估计为1085+-57，与1054到1056年的蟹状超新星的说法一致。下一个最大的10 Be在地球上的预测是在4463+-57年，这意味着地球气候交替由于地球物理或非太阳宇宙强迫。
英文摘要：
A very strong period of 3592+-57 yrs in 10Be deposition rates from Vostok ice core raw data was detected and verified against concentration raw data at Taylor Dome and Vostok. Data show Hallstadzeit Solar cycle at 2296+-57 yrs, and indicate LaViolette period at 12500 yrs. The 99% confidence Gauss Vanicek spectral analysis was used, making data alteration avoidable thus enabling data separation that reflected cosmic ray background conditions at Galactic boundary. After the separation only the new period remains and converges, hence it is of extrasolar and Galactic origin. Since dominant spectral peaks from 10Be can only be explained by excesses in cosmic ray influx, the discovered signature indicates bursts occurring regularly in a single source. Based on recent sky surveys, Galactic Core makes the best candidate host for the bursts. A previously reported 3600 yrs period in geomagnetic field declinations means the discovered phase can overpower astronomical magnetic fields at distances such as Galactic Core to Earth. The epoch of the most recent 10Be maximum is estimated as 1085+-57, coinciding with 1054 to 1056 alleged account of Crab supernova. The next maximum 10Be on Earth is predicted in year 4463+-57, meaning Earth climate alternates due to geophysical or nonsolar cosmic forcing.
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