当前位置: X-MOL 学术Astrophys. J. Suppl. Ser. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Detection of Solar-like Oscillations in Subgiant and Red Giant Stars Using 2 minute Cadence TESS Data
The Astrophysical Journal Supplement Series ( IF 8.7 ) Pub Date : 2024-02-22 , DOI: 10.3847/1538-4365/ad18db
Jianzhao Zhou , Shaolan Bi , Jie Yu , Yaguang Li , Xianfei Zhang , Tanda Li , Liu Long , Mengjie Li , Tiancheng Sun , Lifei Ye

Based on all 2 minute cadence TESS light curves from Sector 1 to 60, we provide a catalog of 8651 solar-like oscillators, including frequency at maximum power ( νmax , with its median precision σ = 5.39%), large frequency separation (Δν, σ = 6.22%), and seismically derived masses, radii, and surface gravity values. In this sample, we have detected 2173 new oscillators and added 4373 new Δν measurements. Our seismic parameters are consistent with those from Kepler, K2, and previous TESS data. The median fractional residual in νmax is 1.63%, with a scatter of 14.75%, and in Δν it is 0.11%, with a scatter of 10.76%. We have detected 476 solar-like oscillators with νmax exceeding the Nyquist frequency of Kepler long-cadence data during the evolutionary phases of subgiants and the base of the red giant branch, which provide a valuable resource for understanding angular momentum transport.

中文翻译:

使用 2 分钟节奏 TESS 数据检测亚巨星和红巨星中的类太阳振荡

基于从第 1 区到第 60 区的所有 2 分钟节奏 TESS 光变曲线,我们提供了 8651 个类太阳振荡器的目录,包括最大功率时的频率( ν最大限度 ,及其中位数精度σ= 5.39%),大频率间隔(Δν,σ= 6.22%),以及通过地震得出的质量、半径和表面重力值。在此示例中,我们检测到 2173 个新振荡器并添加了 4373 个新 Δν测量。我们的地震参数与开普勒、K2 和之前的 TESS 数据一致。中位残差分数 ν最大限度 为 1.63%,分散度为 14.75%,Δν为 0.11%,分散度为 10.76%。我们已经检测到 476 个类太阳振荡器 ν最大限度 超过了亚巨星演化阶段和红巨星分支底部开普勒长节奏数据的奈奎斯特频率,为理解角动量输运提供了宝贵的资源。
更新日期:2024-02-22
down
wechat
bug