论文标题
银河系和恒星天体物理学的前景，具有巨大星星的星星学，{tess} $连续观看区域及以后
Prospects for Galactic and stellar astrophysics with asteroseismology of giant stars in the $\it{TESS}$ Continuous Viewing Zones and beyond
论文作者
论文摘要
NASA - $ \ it {tess} $ Mission提出了一个宝库，以了解其观察到的星星和居住的银河系。我们首先介绍了银河系和恒星天体物理学的前景，通过在$ \ it {tess} $南部连续观看区（SCVZ）中对明亮的（$ g <11 $）红色巨星进行初始的星号（$ G <11 $）红色巨星。使用三个独立管道，我们检测$ν_ {\ MathRM {max}} $和$Δν$和$Δν$在15,405星级父样本中的41％中，其一致性为$ \ sim 2 \％2 \％$ in $ n $ n $ n $ nmmain {基于此，我们预测，对于$ \ sim 3 \ times10^{5} $巨人，可以实现地震学，但要取决于分析和减少数据减少技术的改进。最优质的$ \ it {tess} $ - CVZ数据，对于5,574星，管道返回一致的结果，在许多恒星进化状态下提供了高质量的功率谱。这使得例如渐近巨型分支凹凸（AGBB）的研究可能。我们证明了混合$ \ ell = 1 $模式，并且在1年数据集中可以清晰地观察到旋转分裂。 By combining $\it{TESS}$-CVZ data with $\it{TESS}$-HERMES, $\it{SkyMapper}$, APOGEE and $\it{Gaia}$ we demonstrate the potential for Galactic archaeology studies using the data, which provides good age precision and accuracy that reproduces the age of high $\mathrm{[α/Fe]}$基于$ \ it {kepler} $的研究的质量与运动学之间的星星与运动关系之间的关系。与$ \ it {kepler} $样本相比，质量质量优质的天体和更简单的目标选择使得该数据非常适合研究当地恒星形成历史记录和银河盘的演变。这些结果为CVZ中详细的光谱随访提供了有力的案例，以补充当前调查（或将）收集的。 [简略]
The NASA-$\it{TESS}$ mission presents a treasure trove for understanding the stars it observes and the Milky Way, in which they reside. We present a first look at the prospects for Galactic and stellar astrophysics by performing initial asteroseismic analyses of bright ($G < 11$) red giant stars in the $\it{TESS}$ Southern Continuous Viewing Zone (SCVZ). Using three independent pipelines, we detect $ν_{\mathrm{max}}$ and $Δν$ in 41% of the 15,405 star parent sample (6,388 stars), with consistency at a level of $\sim 2\%$ in $ν_{\mathrm{max}}$ and $\sim 5\%$ in $Δν$. Based on this, we predict that seismology will be attainable for $\sim 3\times10^{5}$ giants across the whole sky, subject to improvements in analysis and data reduction techniques. The best quality $\it{TESS}$-CVZ data, for 5,574 stars where pipelines returned consistent results, provide high quality power spectra across a number of stellar evolutionary states. This makes possible studies of, for example, the Asymptotic Giant Branch bump (AGBb). We demonstrate that mixed $\ell=1$ modes and rotational splitting are cleanly observed in the 1-year data set. By combining $\it{TESS}$-CVZ data with $\it{TESS}$-HERMES, $\it{SkyMapper}$, APOGEE and $\it{Gaia}$ we demonstrate the potential for Galactic archaeology studies using the data, which provides good age precision and accuracy that reproduces the age of high $\mathrm{[α/Fe]}$ stars and relationships between mass and kinematics from studies based on $\it{Kepler}$. Better quality astrometry and simpler target selection than the $\it{Kepler}$ sample makes this data ideal for studies of the local star formation history and evolution of the Galactic disc. These results provide a strong case for detailed spectroscopic follow-up in the CVZs to complement that which has been (or will be) collected by current surveys. [Abridged]
