Deep Submillimeter and Radio Observations in the SSA22 Field. I. Powering Sources and the Lyα Escape Fraction of Lyα Blobs

Deep Submillimeter and Radio Observations in the SSA22 Field. I. Powering Sources and the Lyα Escape Fraction of Lyα Blobs
复制标题

SSA22 领域的深亚毫米波和射电观测。

DOI:
10.3847/1538-4357/aa960f
复制
发表时间:
2017-04
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
Weiss
Weiss
中科院分区:
其他
文献类型:
--
作者:
Ao Y.;Matsuda Y.;Henkel C.;Iono D.;Alex;er D. M.;Chapman S. C.;Geach J.;Hatsukade B.;Hayes M.;Hine N. K.;Kato Y.;Kawabe R.;Kohno K.;Kubo M.;Lehnert M.;Malkan M.;Menten K. M.;Nagao T.;Norris R. P.;Ouchi M.;Saito T.;Tamura Y.;Taniguchi Y.;Umehata H.;Weiss

文献摘要

参考文献

相似文献

我们研究了在SSA 22场中z = 3.1的35个Lyα团簇(LABs)的加热机制和Lyα逃逸分数。尘埃连续源已被确定在11个35个实验室,所有的星星形成率(SFR)超过100兆光年-1。在29个调查的LAB中的9个中检测到可能的无线电对应物。对亚毫米尘埃辐射的探测更多地与Lyα辐射的物理大小有关,而不是与LABs的Lyα光度有关。在亚毫米波/无线电探测到的LABs中,无线电过量是常见的,暗示着活动星系核的存在。没有X射线对应物的大多数射电源位于LAB的中心。然而,所有X射线对应物都避开中心区域。这可以通过由于沿视线沿着的特别大的柱密度引起的吸收或通过高度取向依赖的LAB形态来解释。在亚毫米探测到的LAB中,Lyα逃逸分数的中位数约为3%,低于亚毫米未探测到的LAB的下限11%。我们怀疑,大的差异是由于大的SFR,密集的大规模环境,以及在解释光学数据时所需的消光校正的大的不确定性支持的高尘埃衰减。
We study the heating mechanisms and Lyα escape fractions of 35 Lyα blobs (LABs) at z ≈ 3.1 in the SSA22 field. Dust continuum sources have been identified in 11 of the 35 LABs, all with star formation rates (SFRs) above 100 M ⊙ yr-1. Likely radio counterparts are detected in 9 out of 29 investigated LABs. The detection of submillimeter dust emission is more linked to the physical size of the Lyα emission than to the Lyα luminosities of the LABs. A radio excess in the submillimeter/radio-detected LABs is common, hinting at the presence of active galactic nuclei. Most radio sources without X-ray counterparts are located at the centers of the LABs. However, all X-ray counterparts avoid the central regions. This may be explained by absorption due to exceptionally large column densities along the line-of-sight or by LAB morphologies, which are highly orientation dependent. The median Lyα escape fraction is about 3% among the submillimeter-detected LABs, which is lower than a lower limit of 11% for the submillimeter-undetected LABs. We suspect that the large difference is due to the high dust attenuation supported by the large SFRs, the dense large-scale environment as well as large uncertainties in the extinction corrections required to apply when interpreting optical data.
DOI: 10.1038/nature10320
发表时间: 2011-08
期刊: Nature
影响因子: 64.8
作者:
M. Hayes;C. Scarlata;B. Siana
通讯作者: M. Hayes;C. Scarlata;B. Siana
DOI: --
发表时间: 2017
影响因子: 4.9
作者:
郑宪忠;郝彩娜;黄家声;夏晓阳
通讯作者: 夏晓阳
DOI: 10.3847/1538-4357/837/2/172
发表时间: 2016-11
期刊: The Astrophysical Journal
影响因子: --
作者:
R. Xue;Kyoung-soo Lee;A. Dey;N. Reddy;Sungryong Hong;M. Prescott;H. Inami;B. Jannuzi;Anthony H.
通讯作者: R. Xue;Kyoung-soo Lee;A. Dey;N. Reddy;Sungryong Hong;M. Prescott;H. Inami;B. Jannuzi;Anthony H.
DOI: 10.1051/0004-6361:200600025
发表时间: 2005-12
影响因子: 6.5
作者:
K. Nilsson;J. Fynbo;P. Møller;J. Sommer-Larsen;C. Ledoux;ESO-Garching;Dark Cosmology Centre;Dk;ESO-Chile
通讯作者: K. Nilsson;J. Fynbo;P. Møller;J. Sommer-Larsen;C. Ledoux;ESO-Garching;Dark Cosmology Centre;Dk;ESO-Chile
DOI: 10.1017/pasa.2015.25
发表时间: 2015-05
影响因子: 6.3
作者:
M. Hayes
通讯作者: M. Hayes