A quasar discovered at redshift 6.6 from Pan-STARRS1

被引：32

作者：

Tang, Ji-Jia ^{[1
,2
]}

Goto, Tomotsugu ^{[3
]}

Ohyama, Youichi ^{[2
]}

Chen, Wen-Ping ^{[4
]}

Walter, Fabian ^{[5
]}

Venemans, Bram ^{[5
]}

Chambers, Kenneth C. ^{[6
]}

Banados, Eduardo ^{[7
]}

Decarli, Roberto ^{[5
]}

Fan, Xiaohui ^{[8
]}

Farina, Emanuele ^{[5
]}

Mazzucchelli, Chiara ^{[5
]}

Kaiser, Nick ^{[6
]}

Magnier, Eugene A. ^{[6
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Astrophys, 1 Sect 4 Roosevelt Rd, Taipei 10617, Taiwan

[2] Acad Sinica, Inst Astron & Astrophys, 1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan

[3] Natl Tsing Hua Univ, Inst Astron, 101,Sect 2,Kuang Fu Rd, Hsinchu 30013, Taiwan

[4] Natl Cent Univ, Grad Inst Astron, 300 Zhongda Rd, Taoyuan 32001, Taiwan

[5] Max Plank Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[6] Univ Hawaii Manoa, Inst Astron, Honolulu, HI 96822 USA

[7] Carnegie Observ, 813 Santa Barbara St, Pasadena, CA 91101 USA

[8] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2017年 / 466卷 / 04期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

quasars: general; quasars: individual; dark ages; reionization; first stars; Z-SIMILAR-TO-6; QUASARS; SKY SURVEY; EVOLUTION; REIONIZATION; TELESCOPE; COMPOSITE; SPECTRA; SAMPLE; EPOCH; QSO;

D O I：

10.1093/mnras/stw3287

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Luminous high-redshift quasars can be used to probe of the intergalactic medium in the early universe because their UV light is absorbed by the neutral hydrogen along the line of sight. They help us to measure the neutral hydrogen fraction of the high-z universe, shedding light on the end of reionization epoch. In this paper, we present a discovery of a new quasar (PSO J006.1240+39.2219) at redshift z = 6.61 +/- 0.02 from Panoramic Survey Telescope & Rapid Response System 1.Including this quasar, there are nine quasars above z > 6.5 up to date. The estimated continuum brightness is M-1450 = -25.96 +/- 0.08. PSO J006.1240+39.2219 has a strong Ly alpha emission compared with typical low-redshift quasars, but the measured near-zone region size is R-NZ = 3.2 +/- 1.1 proper megaparsecs, which is consistent with other quasars at z similar to 6.

引用

页码：4568 / 4572

页数：5

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