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近红外巡天仪

The Near-Infrared Sky Surveyor

Daniel Stern, James G. Bartlett, Mark Brodwin, Asantha Cooray, Roc Cutri, Arjun Dey, Peter Eisenhardt, Anthony Gonzalez, Jason Kalirai, Amy Mainzer, Leonidas Mo… 展开作者

Daniel Stern, James G. Bartlett, Mark Brodwin, Asantha Cooray, Roc Cutri, Arjun Dey, Peter Eisenhardt, Anthony Gonzalez, Jason Kalirai, Amy Mainzer, Leonidas Moustakas, Jason Rhodes, S. Adam Stanford, Edward L. Wright

摘要:

[NIRSS是十年调查倡导的宽视场红外巡天望远镜(WFIRST)任务的三个概念之一。近红外巡天仪(NIRSS)在地球大气层之外运行,没有其有限的吸收和热背景,将在近红外波长下深入绘制整个天空,从而实现新的和基本的发现,从太阳系外行星的识别到通过识别z>10的数千个类星体来探测再电离时代。国家红外遥感系统将直接针对美国航天局研究宇宙起源的科学目标,在为期4年的飞行任务中使用1.5米望远镜在1至4微米的四个通带内达到全天0.2微焦耳(25.6等AB)的灵敏度。在三个较短的通带(1 - 2.5微米),拟议的深度与迄今为止完成的最深的激光束调查相当,比以前唯一的全天近红外调查2 MASS灵敏3000倍。在最长的通带(3.5微米),这是不可行的从地面上,NIRSS将是500倍以上的灵敏度比WISE。NIRSS填补了我们对天球知识的一个关键空白,是WISE的自然补充,并与下一代深(0.1 μ J)、宽区域(>2 π ster)、地基光学调查(LSST和Pan-Starrs)很好地匹配。由于地面红外观测的高热背景,只有从空间进行亚μ y灵敏度的近红外全天巡天才是可行的。

英文摘要:

[NIRSS is one of three concepts that contributed to the Wide-Field Infrared Survey Telescope (WFIRST) mission advocated by the Decadal Survey.] Operating beyond the reaches of the Earth's atmosphere, free of its limiting absorption and thermal background, the Near-Infrared Sky Surveyor (NIRSS) will deeply map the entire sky at near-infrared wavelengths, thereby enabling new and fundamental discoveries ranging from the identification of extrasolar planets to probing the reionization epoch by identifying thousands of quasars at z>10. NIRSS will directly address the NASA scientific objective of studying cosmic origins by using a 1.5-meter telescope to reach full-sky 0.2 uJy (25.6 mag AB) sensitivities in four passbands from 1 to 4 microns in a 4-yr mission. At the three shorter passbands (1 - 2.5 microns), the proposed depth is comparable to the deepest pencil-beam surveys done to date and is 3000 times more sensitive than the only previous all-sky near-infrared survey, 2MASS. At the longest passband (3.5 micron), which is not feasible from the ground, NIRSS will be 500 times more sensitive than WISE. NIRSS fills a pivotal gap in our knowledge of the celestial sphere, is a natural complement to WISE, and is well matched to the next generation of deep (0.1 uJy), wide-area (>2 pi ster), ground-based optical surveys (LSST and Pan-Starrs). With the high thermal backgrounds of ground-based infrared observations, a near-infrared full sky survey at sub-uJy sensitivity is only feasible from space.

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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