论文标题
开普勒光度法的太阳能振荡的热极限
The hot limit of solar-like oscillations from Kepler photometry
论文作者
论文摘要
在6000-10000 K范围内具有有效温度的2347颗恒星的开普勒短体光度法用于寻找太阳样振荡的存在。目的是建立随机对流激发机制的热端的位置，并在多大程度上重叠Delta Scuti/Gamma Doradus不稳定性区域。描述了一种简单但有效的自相关方法，该方法能够检测低振幅太阳能振荡，但具有错误检测的巨大风险。最大振荡功率频率的位置，$ν_ {\ rm max} $，并且大于$Δν$的大频率分离比6000 K高的167颗星确定，其中70个是新的检测。结果表明，太阳能振荡激发的热边缘似乎并未扩展到Delta Scuti/Gamma Doradus不稳定条中。
Kepler short-cadence photometry of 2347 stars with effective temperatures in the range 6000-10000 K was used to search for the presence of solar-like oscillations. The aim is to establish the location of the hot end of the stochastic convective excitation mechanism and to what extent it may overlap the delta Scuti/gamma Doradus instability region. A simple but effective autocorrelation method is described which is capable of detecting low-amplitude solar-like oscillations, but with significant risk of a false detection. The location of the frequency of maximum oscillation power, $ν_{\rm max}$, and the large frequency separation, $Δν$, is determined for 167 stars hotter than 6000 K, of which 70 are new detections. Results indicate that the hot edge of excitation of solar-like oscillations does not appear to extend into the delta Scuti/gamma Doradus instability strip.
