An Extremely Bright QSO at z=2.89

被引：4

作者：

Jeram, Sarik ^{[1
]}

Gonzalez, Anthony ^{[1
]}

Eikenberry, Stephen ^{[1
,2
]}

Stern, Daniel ^{[3
]}

Mendes de Oliveira, Claudia Lucia ^{[4
]}

Izuti Nakazono, Lilianne Mariko ^{[4
]}

Ackley, Kendall ^{[5
]}

机构：

[1] Univ Florida, Bryant Space Sci Ctr, Dept Astron, Gainesville, FL 32611 USA

[2] Univ Florida, Dept Phys, New Phys Bldg, Gainesville, FL 32611 USA

[3] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

[4] Univ Sao Paulo, Dept Astron, Inst Astron Geofis & Ciencias Atmosfer, Rua Matao 1226,Cidade Univ, BR-05508090 Sao Paulo, Brazil

[5] Monash Univ, Sch Phys & Astron, OzGrav, Clayton, Vic 3800, Australia

来源：

ASTROPHYSICAL JOURNAL | 2020年 / 899卷 / 01期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

LUMINOSITY FUNCTION; BLACK-HOLE; SKY; REDSHIFT; QUASARS; DECELERATION; EVOLUTION; GALAXIES; UNIVERSE;

D O I：

10.3847/1538-4357/ab9c95

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery and confirmation of a bright quasi-stellar object (QSO), 2MASS J13260399 + 7023462, at z = 2.889. This QSO is the first spectroscopically confirmed candidate from an ongoing search using the combination of Gaia and Wide-field Infrared Survey Explorer photometry to identify bright QSOs at z > 2, the redshift regime for which the Ly alpha forest is accessible with ground-based facilities. With a Gaia apparent magnitude G = 16.07, 2MASS J13260399 + 7023462 is one of the brightest QSOs known at z > 2, with only 15 currently known brighter QSOs. Given its inferred M-1450,M-AB magnitude and redshift, it is among the most luminous objects in the universe; the inferred black hole mass and corresponding Eddington ratio are (2.7 +/- 0.4) x 10(10) M-circle dot and 1.3 +/- 0.3, respectively. Follow-up Hubble observations confirm it is not gravitationally lensed.

引用

页数：6

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