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参宿四亮度有了明显的变化,是否即将爆发成为焦点

Recently,there has been a significant change in the brightness of the four places.Whether this famous red superstar is about to explode has become the focus of discussion.Many astronomers will choose a more"gentle"theory to explain the brightness variation of Sansui:One theory is that the surrounding dust particles absorb part of the light;another hypothesis is that Sansui 4 is like the sun,and its The huge convection space inside sends the hot material to the surface,where it cools down before falling back to the inside.A recent recent study provides strong evidence for the former.

最近,参宿四的亮度有了明显的变化,这位著名的红色巨星是否即将爆发成为人们讨论的焦点。很多天文学家会选择一种更“温和”的理论来解释三穗的亮度变化:一种理论是周围的尘埃粒子吸收了部分光线;另一种假设是三穗四号像太阳一样,其内部巨大的对流空间将热物质送到地表,在它冷却之后再回到里面。最近的一项研究为前者提供了有力的证据。 纽约时报中英文网 http://www.qqenglish.com

Measuring the surface temperature of Sansui is a simple way to distinguish between these two hypotheses.If the second hypothesis holds,its surface temperature should be lower than expected.

测量三水的表面温度是区分这两种假设的简单方法。如果第二个假设成立,它的表面温度应该低于预期。

However,measuring the temperature of a star is not easy.The light emitted by a star is usually too strong to form a detailed spectrum.The researchers used a filter to effectively"suppress"other signals before digging out from the spectrum.A special signal-the ability of titanium oxide molecules to absorb light.Titanium oxide absorbs light of a specific wavelength,leaving"traces"in the red giant's spectrum that scientists can use to determine the surface temperature of the star.

然而,测量恒星的温度并不容易。恒星发出的光通常太强而无法形成详细的光谱。研究人员在从频谱中挖掘之前使用了一个滤波器来有效地“抑制”其他信号。氧化钛分子吸收光的能力。氧化钛吸收特定波长的光,在红巨星的光谱中留下“痕迹”,科学家可以用来确定恒星的表面温度。

According to calculations,the average surface temperature on February 14 was about 3325 degrees Celsius,which was only 50-100 degrees Celsius lower than the surface temperature calculated in 2004.There was no significant change in temperature.So the"answer"seems to be more biased towards the dust particles blocking the light.

据计算,2月14日的平均地表温度约为3325摄氏度,仅比2004年计算的地表温度低50-100摄氏度。温度没有明显变化。所以“答案”似乎更偏向于阻挡光线的尘埃粒子。
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