CARMENES. V: non-cryogenic solutions for YJH-band NIR instruments

CARMENES. V: non-cryogenic solutions for YJH-band NIR instruments
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卡梅内斯。

DOI:
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发表时间:
2012
期刊:
Other Conferences
影响因子:
--
通讯作者:
J. Caballero
J. Caballero
中科院分区:
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文献类型:
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作者:
P. Amado;R. Lenzen;M. Cárdenas;E. Sánchez;S. Becerril;M. Sánchez;W. Seifert;A. Quirrenbach;I. Ribas;A. Reiners;H. Mandel;J. Caballero

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目前,每台使用近红外探测器的仪器都被冷却至低温,以最大限度地减少热仪器发出的热通量。当科学案例需要 K 波段时,必须进行冷冻,即达到非常低的工作温度。这导致仪器更加复杂和昂贵。然而,无法从 K 波段观测中受益的科学案例,例如通过径向速度技术检测 M 矮星周围的系外行星,可以使用非低温仪器。 CARMENES 仪器正在实施一个冷却系统,可以实现这样的解决方案。它由十一个西班牙和德国机构组成的财团建造,并将围绕 M 矮星进行系外行星调查。其概念包括两台光谱仪,一台配备了 550-950 nm 范围内的 CCD,另一台配备了 950-1700 nm 范围内的 HgCdTe 探测器,因此覆盖了 YJH 波段。在这篇文章中,研究了不同的可能性,以达到 CARMENES 中使用的最终冷却解决方案,所有这些都被证明是可行的,符合科学案例要求的 SNR 要求。
Currently, every single instrument using NIR detectors is cooled down to cryogenic temperatures to minimize the thermal flux emitted by a warm instrument. Cryogenization, meaning reaching very low operating temperatures, is a must when the K band is needed for the science case. This results in more complex and more expensive instruments. However, science cases that do not benefit from observing in the K band, like the detection of exoplanets around M dwarfs through the radial velocity technique, can make use of non-cryogenic instruments. The CARMENES instrument is implementing a cooling system which could allow such a solution. It is being built by a consortium of eleven Spanish and German institutions and will conduct an exoplanet survey around M dwarfs. Its concept includes two spectrographs, one equipped with a CCD for the range 550-950 nm, and one with HgCdTe detectors for the range from 950-1700 nm, covering therefore the YJH bands. In this contribution, different possibilities are studied to reach the final cooling solution to be used in CARMENES, all of them demonstrated to be feasible, within the requirements of the SNR requested by the science case.
用视向速度法探测低质量恒星周围的行星
DOI: 10.1088/0004-637x/710/1/432
发表时间: 2010
期刊: The Astrophysical Journal
影响因子: --
作者:
Reiners;Dreizler;Seifahrt;Czesla
通讯作者: Czesla
CARMENES I:仪器和调查概述
DOI: 10.1117/12.925164
发表时间: 2012
期刊:
影响因子: --
作者:
Quirrenbach;Andreas;Zechmeister;Mathias
通讯作者: Mathias