论文标题
感兴趣的喇叭形苔丝对象：所有两分钟Cadence Tess Planet候选人的耀斑率
The Flaring TESS Objects of Interest: Flare Rates for all Two Minute Cadence TESS Planet Candidates
论文作者
论文摘要
尽管已经对5000多个感兴趣的对象进行了分类，但尚未对其宿主恒星的耀斑速率进行全面调查。我们对所有2250个非退休TOIS进行了首次耀斑调查，并进行了2分钟的节奏光曲线，以测量或对其耀斑速率放置上限。我们发现93个候选轨道耀斑星并测量其耀斑频率分布。在整个样品中，<1.5r_earth轨道耀斑星的TOI比1.5 <r <2.75r_earth，2.75 <r <4r_earth或r <4r_earth的tois更频繁。我们按照其耀斑速率/上限，出色的质量和距离对所有TOI主恒星进行排序，以创建耀斑排名度量（FRM），以确定随访的适用性。然后检查每个TOI的FRM与传输光谱中大气特征的预期信号噪声检查，以定位最有希望的目标。我们发现1/4的陆生M-dwarf行星可与传输光谱轨道耀斑恒星相提并论。但是，陆地行星的M-DWARF宿主目前均未以> 99.9％的大气臭氧耗尽的水平膨胀。我们将宿主恒星耀斑速率的第一个上限限制为TOI 700 d，并探索诸如DS Tuc AB等年轻行星的耀斑速率。
Although more than 5000 TESS Objects of Interest have been cataloged, no comprehensive survey of the flare rates of their host stars exists. We perform the first flare survey of all 2250 non-retired TOIs with 2 min cadence light curves to measure or place upper limits on their flare rates. We find 93 candidates orbit flare stars and measure their flare frequency distributions. Across the sample, TOIs of <1.5R_Earth orbit flare stars more frequently than do TOIs of 1.5<R<2.75R_Earth, 2.75<R<4R_Earth, or R<4R_Earth. We sort all TOI host stars by their flare rate/upper limit, stellar mass, and distance to create a flare ranking metric (FRM) to determine suitability for follow-up. The FRM of each TOI is then checked against the expected signal-to-noise of atmospheric features in transmission spectroscopy to locate the most promising targets. We find 1/4 of terrestrial M-dwarf planets amenable to transmission spectroscopy orbit flare stars. However, none of the M-dwarf hosts to terrestrial planets are currently flaring at sufficient levels for >99.9% atmospheric ozone depletion. We give the first upper limits on the flare rate of the host star to TOI 700 d and explore the flare rates incident on young planets such as DS Tuc Ab.
