Variability Properties of 4 Million Sources in the $TESS$ Input Catalog Observed with the Kilodegree Extremely Little Telescope Survey
Ryan J. Oelkers, Joseph E. Rodriguez, Keivan G. Stassun, Joshua Pepper, Garrett Somers, Stella Kafka, Daniel J. Stevens, Thomas G. Beatty, Robert J. Siverd, Mic… 展开作者
Ryan J. Oelkers, Joseph E. Rodriguez, Keivan G. Stassun, Joshua Pepper, Garrett Somers, Stella Kafka, Daniel J. Stevens, Thomas G. Beatty, Robert J. Siverd, Michael B. Lund, Rudolf B. Kuhn, David James, B. Scott Gaudi
备注:
26 pages, 16 figures, 6 tables, accepted for publication in the Astronomical Journal. The catalog is maintained as a living database on the Filtergraph visualization portal at https://filtergraph.com/kelt_vars
The Kilodegree Extremely Little Telescope (KELT) has been surveying more than $70\%$ of the celestial sphere for nearly a decade. While the primary science goal of the survey is the discovery of transiting, large-radii planets around bright host stars, the survey has collected more than $10^6$ images, with a typical cadence between $10-30$ minutes, for more than $4$ million sources with apparent visual magnitudes in the approximate range $7<V<13$. Here we provide a catalog of 52,741 objects showing significant large-amplitude fluctuations likely caused by stellar variability and 62,229 objects identified with likely stellar rotation periods. The detected variability ranges in $rms$-amplitude from 3 mmag to 2.3 mag, and the detected periods range from $\sim$0.1 days to $\gtrsim$2000 days. We provide variability upper limits for all other $\sim$4 million sources. These upper limits are principally a function of stellar brightness, but we achieve typical 1$σ$ sensitivity on 30-minute timescales down to $\sim5$ mmag at $V\sim 8$, and down to $\sim43$ mmag at $V\sim 13$. We have matched our catalog to the $TESS$ Input catalog and the AAVSO Variable Star Index to precipitate the follow up and classification of each source. The catalog is maintained as a living database on the Filtergraph visualization portal at the URL https://filtergraph.com/kelt$\_$vars
The Revised TESS Input Catalog and Candidate Target List
我们描述了组装的目录和用于填充修订后的TESS输入目录(TIC)的算法,基于盖亚第二次数据发布的合并。我们还描述了一个修订后的排名系统,优先考虑2分钟的节奏观察明星,并组装一个修订后的候选目标列表(CTL)使用该排名。TIC可在Mikulski Archive for Space Telescopes(MAST)服务器上获得,增强的CTL可通过网址http://filtergraph.vanderbilt.edu/tess_ctl上的Filtergraph数据可视化门户系统获得。
The Gaia-Kepler-TESS-Host Stellar Properties Catalog: Uniform Physical Parameters for 7993 Host Stars and 9324 Planets
我们提出了第一个同质目录的$Kepler$,$K2$,和$TESS$主机恒星和相应的目录的系外行星的属性,其中包含7993恒星和9324行星,分别。我们使用等时线拟合和$Gaia$ DR 3光度测定法、视差和分光光度金属丰度,分别计算了3248、565和4180颗$Kepler$、$K2$和$TESS$恒星的精确、均匀的$T_{\mathrm{eff}}$、$\log g$、质量、半径、平均恒星密度、光度、年龄、距离和V波段光度。我们将我们的恒星特性与使用基本和精确约束(如干涉测量和星震学)的研究进行了比较,发现剩余散射为2.8%,5.6%,5.0%和31%,我们的$T_{\mathrm{eff}}$,半径,质量和年龄与文献中的偏移分别为0.2%,1.0%,1.2%和0.7%。此外,我们分别计算了4281、676和4367 $Kepler$、$K2$和$TESS$行星的行星半径、半长轴和入射通量,发现$K2$、$TESS$和组合样本中的系外行星半径差距不如单独的$Kepler$样本中那么突出。我们怀疑这种差异很大程度上是由于行星与恒星的半径比不均匀,$K2$和$TESS$的时间基线较短,以及样本量较小。最后,我们确定了一个明确的半径膨胀的趋势,在我们的大样本的热彗星,并找到150个热的亚海王星沙漠行星,除了人口超过400年轻的宿主恒星作为潜在的机会,测试理论的行星形成和演化。
COUNTESS I: A Uniformly Vetted Catalog of Known and New Transiting Exoplanets in the TESS Northern Continuous Viewing Zone
University of Florida(佛罗里达大学);Penn State(宾夕法尼亚州立大学);Center for Exoplanets and Habitable Worlds(系外行星与宜居世界中心);Caltech/IPAC-NASA Exoplanet Science Institute(加州理工学院/IPAC-NASA 系外行星科学研究所);California Institute of Technology(加州理工学院)
The TESS Objects of Interest Catalog from the TESS Prime Mission
我们提出了2,241颗系外行星候选者,这些候选者是在其为期两年的主要任务期间通过凌日系外行星调查卫星(TESS)的数据确定的。我们将这些候选者列入TESS感兴趣天体(TOI)目录,其中包括TESS发现的新行星候选者和TESS观测发现的已知行星。我们描述了用于识别TOI和调查新行星候选者的特征的过程,并讨论了一些显着的TESS行星发现。TOI目录包括了数量空前的围绕在附近明亮恒星周围的小行星候选者,这些候选者非常适合进行详细的后续观测。主要任务(扇区1 - 26)的TESS数据产品,包括TOI目录,光变曲线,全帧图像和目标像素文件,可在Mikulski Archive for Space Telescopes上公开获取。
Variability classification of TESS targets in LOPS2, the first long-term pointing field of PLATO. Version 1 of the public variability catalogue
KU Leuven(荷语鲁汶大学);MIT Kavli Institute for Astrophysics & Space Research, Massachusetts Institute of Technology(麻省理工学院卡弗里天体物理与空间研究所);Astronomical Institute of the Czech Academy of Sciences(捷克科学院天文研究所);Newcastle University(纽卡斯尔大学);University of Southern Queensland(南昆士兰大学)
The TEQUILA catalog of variables in TESS full-frame images: Differential photometry light curves from the first two years of observations
Ariel University(阿里埃勒大学);Massachusetts Institute of Technology(麻省理工学院);Weizmann Institute of Science(魏茨曼科学研究所);Deutsches Elektronen-Synchrotron DESY(德国电子同步加速器);Hamburg University of Applied Sciences(汉堡应用科技大学)
The TESS All-Sky Rotation Survey: Periods for 1,046,317 Stars Within 500 pc
Department of Physics and Astronomy, The University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校物理与天文系);Observatories of the Carnegie Institution for Science(卡内基科学研究所天文台)
Temperature and Distance Dependence of Tidal Circularization in Close Binaries: A Catalog of Eclipsing Binaries in the Southern Hemisphere Observed by the TESS Satellite
The Phenomenological Classification of TESS Eclipsing Binaries
Shandong University(山东大学);National Astronomical Observatories, Chinese Academy of Sciences(中国科学院国家天文台);University of the Chinese Academy of Sciences(中国科学院大学)
The TESS Ten Thousand Catalog: 10,001 uniformly-vetted and -validated Eclipsing Binary Stars detected in Full-Frame Image data by machine learning and analyzed by citizen scientists
NASA Goddard Space Flight Center(美国国家航空航天局戈达德空间飞行中心);SETI Institute(搜寻地外文明计划研究所);Department of Astronomy, University of Virginia(弗吉尼亚大学天文系);Department of Astronomy, San Diego State University(圣地亚哥州立大学天文系);Department of Physics, Kavli Institute for Astrophysics and Space Research, M.I.T.(麻省理工学院物理系、Kavli天体物理与空间研究所);Department of Computer Science, Princeton University(普林斯顿大学计算机科学系);Institute of Plant Physiology and Genetics, Bulgaria(保加利亚植物生理与遗传学研究所)
Homogeneous stellar parameters for 717,807 TESS FGK stars using Gaia DR3
Mullard Space Science Laboratory, University College London(穆拉德空间科学实验室,伦敦大学学院);Sydney Institute for Astronomy, School of Physics, University of Sydney(悉尼天文研究所,物理学院,悉尼大学)
An all-sky catalog of solar-type dwarfs for exoplanetary transit surveys
未来大多数旨在发现凌日系外行星的巡天,包括TESS和PLATO,将瞄准明亮(V<13)和附近的太阳型恒星,其光谱型晚于F5。为了提高识别凌日的概率,这些巡天必须覆盖天空中非常大的区域,因为明亮目标的面密度本来就很低。不幸的是,没有一个现有的恒星参数目录既深又宽,足以提供一个均匀的输入列表。由于第一个可用于此目的的盖亚数据发布预计不会早于2017年底发布,我们设计了一种改进的减少自行方法,通过将UCAC 4自行与APASS DR 6测光相结合,并依赖RAVE DR 4作为外部校准器来区分后期场矮星和巨星。这个名为UCAC 4-RPM的输出,是一个公开的、完整的太阳型矮星的全天目录,最低可达V<13.5,加上logg>3.0的亚巨星。相对较低的污染量(定义为假阳性的比例; <30%)也使UCAC 4-RPM成为过去和正在进行的地面凌日调查的有用工具,这些调查需要丢弃来自早期类型或巨星的候选信号。作为一个应用程序,我们展示了UCAC 4-RPM如何支持TESS(这将映射几乎整个天空)输入目录和PLATO的输入目录的准备,计划调查超过一半的整个天空与精致的光度精度。
Scalable, Advanced Machine Learning-based Approaches for Stellar Flare Identification: Application to TESS short-cadence Data and Analysis of a New Flare Catalogue
An all-sky sample of intermediate- to high-mass OBA-type eclipsing binaries observed by TESS
上下文中到高质量恒星是数量最少的恒星类型,它们的内部物理过程比数量更多的低质量恒星更不容易理解。模拟食双星系统中大量主序星中质量到大质量恒星的光度变化将有助于改进这类恒星的模型。目的。我们的目标是从TESS测光中组成一个主序列中到高质量OBA型矮星的均匀编译样本。我们搜索的二进制和没有脉动,并确定其近似星历。方法.我们的选择从一个矮星目录开始,这些矮星的颜色对应于TESS输入目录中的OBA型矮星。我们开发了一种新的自动化方法,旨在检测日食双星的存在下,强烈的脉动和/或旋转信号相对于日食深度,并将其应用到公开的30分钟节奏TESS光变曲线。结果使用TESS震级低于15的目标,并在$J - H < 0.045$和$J - K < 0.06$的2 MASS震级带中切割作为最严格的标准,我们总共得到189981个中等质量到高质量的候选者,其中91193个具有来自两个数据简化管道中至少一个的光变曲线。食双星检测和随后的人工检查误报导致3155个独特的OBA型食双星候选者。结论.我们的样本蚀双星在中间到高质量制度允许未来的二进制(和asteroseismic)建模,目的是更好地了解内部物理过程中的这个热的一部分的主要序列。
Unveiling $δ$ Scuti and $γ$ Doradus Hybrid Pulsation of HD 53166 and HD 53349 Plus Rich Frequencies in HD 52788 -- Catalogs of 70552 $δ$ Sct and 8080 $γ$ Dor
Statistical analysis of asteroseismic indices and stellar parameters of TESS-observed $δ$ Scuti stars
Xinjiang Astronomical Observatory, Chinese Academy of Sciences(中国科学院新疆天文台);School of Astronomy and Space Science, University of Chinese Academy of Sciences(中国科学院大学天文学与空间科学学院);Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick(华威大学物理学院聚变、太空与天体物理学中心);Institute of Geophysics, University of Tehran(德黑兰大学地球物理学研究所);Department of Physics, Faculty of Science, University of Qom(库姆大学理学院物理系);Instituto de Astrofísica de Andalucía - CSIC(安达卢西亚天体物理研究所-西班牙国家科研委员会);Departamento de Física Teórica y del Cosmos, Universidad de Granada(格拉纳达大学理论与宇宙物理学系);Ulugh Beg Astronomical Institute, Uzbekistan Academy of Sciences(乌兹别克斯坦科学院乌鲁格别克天文研究所)
The sensitivity of TESS to transiting planets in TOIs with close-in stellar companions
Bay Area Environmental Research Institute(湾区环境研究所);Mount Holyoke College(蒙特霍利克学院);NASA Exoplanet Science Institute, Caltech/IPAC(NASA系外行星科学研究所,加州理工学院/IPAC);NASA Ames Research Center(NASA艾姆斯研究中心)