期刊
ASTRONOMY & ASTROPHYSICS
卷 677, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/202346165
关键词
techniques: radial velocities; planets and satellites: detection
This article investigates the population statistics and the impact of giant planets on the formation of planetary systems. By reanalyzing previous survey results, it is found that the conclusions about the distribution of giant planets beyond (5-8 astronomical units) are not reliable.
Aims. Giant planets play a major role in multiple planetary systems. Knowing their demographics is important to test their overall impact on the formation of planetary systems. It is also important to test their formation processes. Recently, three radial velocity (RV) surveys have established radial distributions of giant planets. All show a steep increase up to 1-3 au, and two suggest a decrease beyond that.Methods. We aim to understand the limitations associated with the characterization of long-period giant RV planets, and to estimate their impact on the radial distribution of these planets.Results. We revisit the results obtained by two major surveys that derived such radial distributions, using the RV data available at the time of the surveys as well as, whenever possible, new data.Conclusions. We show that the radial distributions published beyond (5-8 au) are not secure. More precisely, the decrease in the radial distribution beyond the peak at 1-3 au is not confirmed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据