论文标题
Muse揭示的Z附近的微弱LA> 4.7 CIV吸收器
Faint LAEs near z>4.7 CIV absorbers revealed by MUSE
论文作者
论文摘要
我们使用Muse的数据，在$ z> 4.7 $的$ z> 4.7 $的近距离搜索中搜索Lyman Alpha发射器（LAES）的结果。我们已经发现了多个LAE候选人，接近四个CIV系统，$ z_ {civ} = 4.94 $ -5.74，log $ _ {10} $（n civ [cm $^{ - 2} $]）$> 13.5。$> 13.5。 （4/5案例），比W0（CIV）$ <0.2 $Å（0/6案例）的CIV系统。具有等效宽度W0（CIV）$> 0.5 $Å的LAE-CIV系统的影响参数在11 $ <ρ<$ 200适当的KPC（PKPC）。此外，所有候选者在光度范围内0.18-1.15 l*$（ly {α}，z = 5.7）$，表明200 pkpc以内的CIV系统的环境由LY $ ly $α$亮度功能的微弱端填充。我们在$ z_ {civ} = 5.72419 $上报告了一个0.28 l*$（lyα）$ galaxy，分隔为$ρ= 10 $ pkpc（log10（cm $^{ - 2} $]）= 14.52）= 5.72419 $。 Z $> 4.9 $ CIV系统的近L*（LY $α$）星系的流行率表明，吸收材料很年轻，很可能在这些红移的最近的银河系中被弹出。在这项工作中报道的微弱的LAE与高电离吸收系统之间的联系可能是低质量星系在圆周乳酸和半乳层间培养基早期进化中的作用的结果。
We present the results from the search for Lyman Alpha emitters (LAEs) in the proximity of 11 CIV absorption systems at $z > 4.7$ in the spectrum of the QSO J1030+0524, using data from MUSE. We have found multiple LAE candidates close to four CIV systems at $z_{CIV} = 4.94$-5.74 with log$_{10}$(N CIV[cm$^{-2}$])$ > 13.5.$ At z = 5-6, CIV systems with W0(CIV) $> 0.2$ Å seem more likely to have galaxies with Ly$α$ emission within $ρ< 200$ proper kpc (4/5 cases), than the CIV systems with W0(CIV)$ < 0.2$ Å (0/6 cases). The impact parameter of LAE-CIV systems with equivalent widths W0(CIV)$ > 0.5 $ Å is in the range 11 $ < ρ<$ 200 proper kpc (pkpc). Furthermore, all candidates are in the luminosity range 0.18-1.15 L*$(Ly{ α}, z = 5.7)$ indicating that the environment of CIV systems within 200 pkpc is populated by the faint end of the Ly$α$ luminosity function. We report a 0.28 L*$(Lyα)$ galaxy at a separation of $ρ= 10$ pkpc from a strong CIV absorption (log10(NCIV[cm$^{-2}$]) = 14.52) at $z_{CIV} = 5.72419$. The prevalence of sub-L*(Ly$α$) galaxies in the proximity of z $> 4.9$ CIV systems suggest that the absorbing material is rather young, likely ejected in the recent past of the galaxies at these redshifts. The connection between faint LAEs and high-ionization absorption systems reported in this work, is potentially a consequence of the role of low mass galaxies in the early evolution of the circum-galactic and intergalactic media.
