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arXiv 0704.2210astro-ph
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350微米时源计数的第一个限制

First Constraints on Source Counts at 350 Microns

Sophia A. Khan, Richard A. Shafer, Stephen Serjeant, S. P. Willner, Chris P. Pearson, Dominic J. Benford, Johannes G. Staguhn, S. Harvey Moseley, Timothy J. Sum… 展开作者

Sophia A. Khan, Richard A. Shafer, Stephen Serjeant, S. P. Willner, Chris P. Pearson, Dominic J. Benford, Johannes G. Staguhn, S. Harvey Moseley, Timothy J. Sumner, Matthew L. N. Ashby, Colin K. Borys, Pierre Chanial, David L. Clements, C. Darren Dowell, Eli Dwek, Giovanni G. Fazio, Attila Kovács, Emeric Le Floc'h, Robert F. Silverberg

摘要:

我们已经成像$\sim$ 6弧分$^2$区域在Bootes深场使用350 $μ$ m优化的第二代亚毫米高角分辨率相机(SHARC II),实现峰值1 $σ$灵敏度为$\sim$ 5毫焦。我们检测到3个以上的源$σ$,并确定在我们的地图虚假源检测率为1.09。在没有探测到$5σ$的情况下,我们依靠深度为24 $μ$ m和20 cm的成像来推断哪些来源最有可能是真实的,给出了两个真实的来源。由此,我们得出一个积分源计数为0.84 $^{+1.39}_{-0.61}$源弧分$^{-2}$在$S>13$ mJy,这是一致的350 $μ$ m源计数模型,有一个红外发光的星系人口与红移的发展。我们利用这些限制因素来考虑未来的陆基短亚毫米测量。

英文摘要:

We have imaged a $\sim$6 arcminute$^2$ region in the Boötes Deep Field using the 350 $μ$m-optimised second generation Submillimeter High Angular Resolution Camera (SHARC II), achieving a peak 1$σ$ sensitivity of $\sim$5 mJy. We detect three sources above 3$σ$, and determine a spurious source detection rate of 1.09 in our maps. In the absence of $5σ$ detections, we rely on deep 24 $μ$m and 20 cm imaging to deduce which sources are most likely to be genuine, giving two real sources. From this we derive an integral source count of 0.84$^{+1.39}_{-0.61}$ sources arcmin$^{-2}$ at $S>13$ mJy, which is consistent with 350 $μ$m source count models that have an IR-luminous galaxy population evolving with redshift. We use these constraints to consider the future for ground-based short-submillimetre surveys.

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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