Studying high-z galaxies with [C II] intensity mapping
文献类型：期刊论文
| 作者 | Yue, B.1; Ferrara, A.2,3 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 490期号:2页码:1928-1943 |
| ISSN号 | 0035-8711 |
| 关键词 | galaxies: high-redshift dark ages, reionization, first stars diffuse radiation radio lines: galaxies |
| DOI | 10.1093/mnras/stz2728 |
| 英文摘要 | We investigate the [C II] line intensity mapping (IM) signal from galaxies in the Epoch of Reionization (EoR) to assess its detectability, the possibility to constrain the L-CII-SFR relation, and to recover the [C II] luminosity function (LF) from future experiments. By empirically assuming that log L-CII = log A + gamma SFR +/- sigma(L), we derive the [C II] LF from the observed UV LF, and the [C II] IM power spectrum. We study the shot noise and the full power spectrum separately. Although, in general, the shot-noise component has a much higher signal-to-noise ratio than the clustering one, it cannot be used to put independent constraints on log A and gamma. Full power spectrum measurements are crucial to break such degeneracy and reconstruct the [C II] LF. In our fiducial survey Si (inspired by CCAT-p/1000 h) at z similar to 6, the shot noise (clustering) signal is detectable for two (one) of the five considered L-CII-STR relations. The shot noise is generally dominated by galaxies with L-CII greater than or similar to 10(8)-10(9) L-circle dot (M-UV similar to -20 to 22), already at reach of ALMA pointed observations. However, given the small field of view of such telescope, an EM experiment would provide unique information on the bright end of the LF. The detection depth of an IM experiment crucially depends on the (poorly constrained) L-CII-SFR relation in the EoR. If the L-CII-SFR relation varies in a wide log A-gamma range, but still consistent with ALMA [C LF upper limits, even the signal from galaxies with L-CII as faint as similar to 10(7) L-circle dot could be detectable. Finally, we consider the contamination by continuum foregrounds (cosmic infrared background, dust, cosmic microwave background) and CO interloping lines, and derive the requirements on the residual contamination level to reliably extract the [C II] signal. |
| WOS关键词 | INFRARED BACKGROUND ANISOTROPIES ; EMITTER CROSS-CORRELATION ; ALMA SPECTROSCOPIC SURVEY ; STAR-FORMATION ; HIGH-REDSHIFT ; LUMINOSITY FUNCTION ; LINE ; REIONIZATION ; EVOLUTION ; DEEP |
| 资助项目 | CAS Pioneer Hundred Talents (Young Talents) program ; NSFC[11653003] ; NSFC-CAS[U1738125] ; NSFC-ISF[11761141012] ; ERC[INTERSTELLAR H2020/740120] ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000496926900031 |
| 资助机构 | CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; CAS Pioneer Hundred Talents (Young Talents) program ; CAS Pioneer Hundred Talents (Young Talents) program ; NSFC ; NSFC ; NSFC-CAS ; NSFC-CAS ; NSFC-ISF ; NSFC-ISF ; ERC ; ERC ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' ; Munich Institute for Astro- and Particle Physics (MIAPP) of the DFG cluster of excellence 'Origin and Structure of the Universe' |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/28196]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Ferrara, A. |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China 2.Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy 3.Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan |
| 推荐引用方式 GB/T 7714 | Yue, B.,Ferrara, A.. Studying high-z galaxies with [C II] intensity mapping[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,490(2):1928-1943. |
| APA | Yue, B.,&Ferrara, A..(2019).Studying high-z galaxies with [C II] intensity mapping.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,490(2),1928-1943. |
| MLA | Yue, B.,et al."Studying high-z galaxies with [C II] intensity mapping".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 490.2(2019):1928-1943. |
入库方式： OAI收割
来源：国家天文台
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