arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1808.02302astro-ph.IM
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用于系外行星探测的多波长高分辨率Spectroscopy:动机、仪器和初步结果

Multi-Wavelength High-Resolution Spectroscopy for Exoplanet Detection: Motivation, Instrumentation and First Results

Serena Benatti

摘要:

自20世纪90年代中期首次声称在一颗类似太阳的恒星周围有一颗热巨行星以来,系外行星的研究一直在不断增长。今天,新的设施正在努力发现低质量恒星周围的第一颗可居住的岩石行星,作为探测期待已久的太阳-地球模拟系统的先驱。如果没有探测越来越具有挑战性的行星的技术和新方法的不断发展,这一领域的所有成就都是不可能的。在巩固了可见光波长范围内的高分辨率光谱学的顶级仪器之后,现在正致力于在近红外范围内达到相同的精度和准确度。事实上,在这个范围内的观测在寻找M矮星周围的系外行星方面有几个优势,M矮星被认为是探测可能的宜居行星的最有利目标。它们还具有强烈的恒星活动,这阻碍了行星探测,但其对径向速度调制的影响在红外线中被减轻。在可见光和近红外范围内同时观测似乎是一种更强大的技术,因为它们提供了组合和互补的信息,对许多其他系外行星科学也很有用。

英文摘要:

Exoplanet research has shown an incessant growth since the first claim of a hot giant planet around a solar-like star in the mid-1990s. Today, the new facilities are working to spot the first habitable rocky planets around low-mass stars as a forerunner for the detection of the long-awaited Sun-Earth analog system. All~the achievements in this field would not have been possible without the constant development of the technology and of new methods to detect more and more challenging planets. After the consolidation of a top-level instrumentation for high-resolution spectroscopy in the visible wavelength range, a huge effort is now dedicated to reaching the same precision and accuracy in the near-infrared. Actually, observations in this range present several advantages in the search for exoplanets around M dwarfs, known to be the most favorable targets to detect possible habitable planets. They are also characterized by intense stellar activity, which hampers planet detection, but~its impact on the radial velocity modulation is mitigated in the infrared. Simultaneous observations in the visible and near-infrared ranges appear to be an even more powerful technique since they provide combined and complementary information, also useful for many other exoplanetary science~cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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