论文标题
没有大量的伴侣，连贯的放射发射M矮人GJ 1151
No Massive Companion to the Coherent Radio-Emitting M Dwarf GJ 1151
论文作者
论文摘要
最近检测到M4.5矮人GJ 1151的圆形极化，长脉冲（> 8小时）的低频（〜150 MHz）无线电发射已被解释为通过电子旋风分钟maser不稳定性引起的。尚未确定所提出的行星的存在或参数。使用20个新的HARPS-N观测值，我们将第99％的上限放在MSINI <5.6 m地球的GJ 1151的任何亲密伴侣的质量上。由于可能在近距离轨道中没有恒星，棕色矮人或巨型行星伴侣，因此我们的数据与发现的无线电发射从短期的陆地质量质量行星和GJ 1151之间产生的无线电发射一致。
The recent detection of circularly polarized, long-duration (>8 hr) low-frequency (~150 MHz) radio emission from the M4.5 dwarf GJ 1151 has been interpreted as arising from a star-planet interaction via the electron cyclotron maser instability. The existence or parameters of the proposed planets have not been determined. Using 20 new HARPS-N observations, we put 99th-percentile upper limits on the mass of any close companion to GJ 1151 at Msini < 5.6 M earth. With no stellar, brown dwarf, or giant planet companion likely in a close orbit, our data are consistent with detected radio emission emerging from a magnetic interaction between a short-period terrestrial-mass planet and GJ 1151.
