论文标题
热传播的热系大气氛（Hearts）V。
Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) V. Detection of sodium on the bloated super-Neptune WASP-166b
论文作者
论文摘要
推测行星形成过程或进化机制是炎热的海王星沙漠的起源。研究目前居住在沙漠边缘或处于该沙漠边缘的系外行星，可以解散各自的形成和进化作用。我们介绍位于海王星沙漠外侧边缘的肿的超新型黄蜂166b的竖琴传输光谱。在3.4 $σ$级别（$ 0.455 \ pm 0.135％$）处检测到中性钠，并具有线条拓宽的暂定指示，这可能是由于风将钠吹入太空的风，这可能是这些受辐照世界的肿胀特征的可能表现。我们将这种检测置于上下文中，以前的工作声称在相同的观察结果中声称钠未检测，并表明丢弃的恒星钠线的痕迹中的高噪声是对未检测的原因。我们强调了这种低信噪比残留物对类似于WASP-166B的系外行星的检测的影响。
Planet formation processes or evolution mechanisms are surmised to be at the origin of the hot Neptune desert. Studying exoplanets currently living within or at the edge of this desert could allow disentangling the respective roles of formation and evolution. We present the HARPS transmission spectrum of the bloated super-Neptune WASP-166b, located at the outer rim of the Neptune desert. Neutral sodium is detected at the 3.4 $σ$ level ($0.455 \pm 0.135 %$), with a tentative indication of line broadening, which could be caused by winds blowing sodium farther into space, a possible manifestation of the bloated character of these highly irradiated worlds. We put this detection into context with previous work claiming a non-detection of sodium in the same observations and show that the high noise in the trace of the discarded stellar sodium lines was responsible for the non-detection. We highlight the impact of this low signal-to-noise remnant on detections for exoplanets similar to WASP-166b.
