高红移宇宙远红外/亚毫米研究的未来展望

A. Blain
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引用次数: 0

摘要

利用COBE、SCUBA、ISO和MAMBO进行的观测提供了合理的工作知识,包括亚毫米和远红外背景辐射的强度以及发光的高红移尘埃星系的源计数。然而,由于背景强度的确定存在不确定性,探测到的星系样本很小,最重要的是,它们的红移分布非常不完整,尘埃星系的演化细节仍未得到解决。该领域的下一步将是SIRTF和ASTRO-F的发射,SOFIA和新的,更强大的地面毫米/亚毫米波相机的调试- BOLOCAM, SHARC-II和SCUBA-II -使用超长时间气球实验,如BLAST, ALMA的建设和FIRST的到来,以及最终出现的空间远红外干涉仪,如SPECS。使用宽频带光谱仪直接进行毫米波/亚毫米波共线红移观测也有令人兴奋的前景。利用这些新设备,已知的高红移尘埃星系的数量将急剧增加。使用SIRTF, SOFIA和FIRST的光谱学将详细探测这些源中的天体物理过程,希望解决由大质量恒星和活动星系核(agn)形成的计数和背景辐射的比例这一悬而未决的问题。遥远尘埃星系的空间和光谱结构将最终通过ALMA和SPECS进行详细解析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prospects for Future Far-Infrared/Submillimeter Studies of the High-Redshift Universe
Observations made using COBE, SCUBA, ISO and MAMBO have provided a reasonable working knowledge of both the intensity of the submm and far-infrared background radiation and the source counts of luminous high-redshift dusty galaxies. However, because there are uncertainties in the background intensity determinations, the samples of detected galaxies are small, and most importantly, their redshift distributions are very incomplete, details of the evolution of dusty galaxies remain unresolved. The next steps forward in the field will be the launches of SIRTF and ASTRO-F, the commissioning of SOFIA and new, more capable ground-based mm/submm-wave cameras - BOLOCAM, SHARC-II and SCUBA-II - the use of ultra-long duration balloon experiments, such as BLAST, the construction of ALMA and the arrival of FIRST, and ultimately the advent of space-borne far-infrared interferometers, such as SPECS. There are also exciting prospects for direct mm/submm-wave CO-line redshift surveys using wide-band spectrographs. Using these new facilities, the number of high-redshift dusty galaxies known will be increased dramatically. Spectroscopy using SIRTF, SOFIA and FIRST will probe the astrophysical processes within these sources in detail, hopefully addressing the open question of the fraction of the counts and background radiation that is generated by the formation of high-mass stars and by active galactic nuclei (AGNs). The spatial and spectral structure of distant dusty galaxies will finally be resolved in detail using ALMA and SPECS.
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