55 Cancri e is an ultra-short period transiting Super-Earth observed by TESS in Sector 21. Using this photometry, we measure the occultation depth in the TESS bandpass, leveraging the precise transit light curve and comparing multiple detrending methods. We measure the occultation depth to be (15.0 ± 4.8) ppm—a staggeringly small change in brightness, yet one detected by TESS in just a single sector of data. This implies a brightness temperature of ##IMG## [http://ej.iop.org/images/2515-5172/4/9/170/rnaasabbc0fieqn1.gif] {${2800}_{-160}^{+130}$} K, which is around 1.5 σ greater than expected given the mean depth measured with Spitzer. This is not a formally significant difference, and may be accounted for by the known variability, or by an albedo of ∼0.5. In any case, future TESS observations of this system will provide an exciting opportunity to further study this diminutive world’s atmosphere.

中文翻译：

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用TESS检测55例隐匿性

55 Cancri e是TESS在第21区观测到的超短时超地球过渡。使用这种光度法，我们利用精确的过渡光曲线并比较了多种去趋势方法，测量了TESS带通中的掩星深度。我们测得的掩星深度为（15.0±4.8）ppm，这是亮度的极小变化，而TESS仅在单个数据扇区中检测到了这种变化。这意味着## IMG ##的亮度温度[http://ej.iop.org/images/2515-5172/4/9/170/rnaasabbc0fieqn1.gif] {$ {2800} _ {-160} ^ { +130} $} K，这比使用Spitzer测得的平均深度要大1.5σ。这不是形式上的显着差异，可以通过已知的变异性或〜0.5的反照率来解释。任何状况之下，