CARMENES. I: instrument and survey overview

CARMENES. I: instrument and survey overview
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CARMENES I:仪器和调查概述

DOI:
10.1117/12.925164
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Mathias
Mathias
中科院分区:
--
文献类型:
--
作者:
Quirrenbach;Andreas;Zechmeister;Mathias

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Carmenes(Calar Alto高分辨率搜索M矮星的近红外和光学回声光谱仪)是Calar Alto天文台3.5米望远镜的下一代仪器,由11个西班牙和德国机构组成的财团建造。卡门仪器由两个独立的埃谢尔光谱仪组成,覆盖的波长范围从0.55μm到1.7μm,光谱分辨率为R=82,000,由来自望远镜卡塞格伦焦点的光纤馈送。这两种光谱仪都装在温度稳定的真空箱中,通过使用Th-Ne和U-Ne发射线灯同时校准,实现了长期1 m/S的径向速度精度。卡门已经被优化用于在低质量恒星的宜居带(HZ)搜索类地行星,这很可能为我们提供第一次机会来研究能够支持太阳系外生命发展的环境。凭借其独特的光学和近红外梯形光谱仪组合,Carmenes将为探测低质量行星提供比任何同类仪器更好的灵敏度,并成为区分真正的行星探测和由恒星活动引起的假阳性的强大工具。卡门调查的目标是2014至2018年间的300颗M矮星。
CARMENES (Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical Echelle Spectrographs) is a next-generation instrument for the 3.5m telescope at the Calar Alto Observatory, built by a consortium of eleven Spanish and German institutions. The CARMENES instrument consists of two separate échelle spectrographs covering the wavelength range from 0.55 μm to 1.7 μm at a spectral resolution of R = 82, 000, fed by fibers from the Cassegrain focus of the telescope. Both spectrographs are housed in temperature-stabilized vacuum tanks, to enable a long-term 1 m/s radial velocity precision employing a simultaneous calibration with Th-Ne and U-Ne emission line lamps. CARMENES has been optimized for a search for terrestrial planets in the habitable zones (HZs) of low-mass stars, which may well provide our first chance to study environments capable of supporting the development of life outside the Solar System. With its unique combination of optical and near-infrared ´echelle spectrographs, CARMENES will provide better sensitivity for the detection of low-mass planets than any comparable instrument, and a powerful tool for discriminating between genuine planet detections and false positives caused by stellar activity. The CARMENES survey will target 300 M dwarfs in the 2014 to 2018 time frame.
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