论文标题
苔丝在120秒和20秒的节奏中观察到的太阳能振荡器的目录
A Catalogue of Solar-Like Oscillators Observed by TESS in 120-second and 20-second Cadence
论文作者
论文摘要
过境系外行星调查卫星(TESS)任务为几乎整个天空的恒星提供了光度光曲线。这允许将星空学应用于尺寸前所未有的潜在太阳能振荡器池。我们旨在生产苔丝在120秒和20秒的节奏模式下观察到的太阳能振荡器的目录。该目录旨在突出显示恒星以30分钟的苔丝节奏Nyquist频率振荡,目的是涵盖主序列和次巨头进化阶段。我们旨在为全局的Asterosis参数提供估计值$ν_ {\ mathrm {max}}} $和$Δν$。我们将新的概率检测算法应用于超过250,000星的120秒和20秒的光曲线。该算法标志的目标是显示出太阳样振荡的特征特征。我们手动审查所得目标列表,以确认存在类似太阳能振荡的存在。使用算法计算的概率密度,我们测量了全局的Asterossismic参数$ν_ {\ Mathrm {max}} $和$Δν$。我们生产一个由4,177个太阳能振荡器的目录,报告$Δν$和$ν_ {\ mathrm {max}} $,价格为$ 98 \%\%$ nater star Count。 Asterosic数据揭示了人力资源图的巨大覆盖范围,填充了红色巨型分支,次巨人制度,并延伸到主序列。与外部目录的交叉匹配表明,检测到的太阳样振荡器中有25个是光谱二进制的组成部分,而28个已确认的行星宿主星。这些结果为这些结果和任何其他感兴趣的苔丝目标提供了精确,独立的强烈震中的潜力。
The Transiting Exoplanet Survey Satellite (TESS) mission has provided photometric light curves for stars across nearly the entire sky. This allows for the application of asteroseismology to a pool of potential solar-like oscillators that is unprecedented in size. We aim to produce a catalogue of solar-like oscillators observed by TESS in the 120-second and 20-second cadence modes. The catalogue is intended to highlight stars oscillating at frequencies above the TESS 30-minute cadence Nyquist frequency with the purpose of encompassing the main sequence and subgiant evolutionary phases. We aim to provide estimates for the global asteroseismic parameters $ν_{\mathrm{max}}$ and $Δν$. We apply a new probabilistic detection algorithm to the 120-second and 20-second light curves of over 250,000 stars. This algorithm flags targets that show characteristic signatures of solar-like oscillations. We manually vet the resulting list of targets to confirm the presence of solar-like oscillations. Using the probability densities computed by the algorithm, we measure the global asteroseismic parameters $ν_{\mathrm{max}}$ and $Δν$. We produce a catalogue of 4,177 solar-like oscillators, reporting $Δν$ and $ν_{\mathrm{max}}$ for $98\%$ of the total star count. The asteroseismic data reveals vast coverage of the HR diagram, populating the red giant branch, the subgiant regime and extending toward the main sequence. A crossmatch with external catalogs shows that 25 of the detected solar-like oscillators are a component of a spectroscopic binary, and 28 are confirmed planet host stars. These results provide the potential for precise, independent asteroseismic constraints on these and any additional TESS targets of interest.