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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 742418.0, MPI für Astronomie / Publikationen_mpia
A quasar discovered at redshift 6.6 from Pan-STARRS1
Authors:Tang, J.-J.; Goto, T.; Ohyama, Y.; Chen, W.-P.; Walter, F.; Venemans, B.; Chambers, K. C.; Bañados, E.; Decarli, R.; Fan, X.; Farina, E.; Mazzucchelli, C.; Kaiser, N.; Magnier, E. A.
Date of Publication (YYYY-MM-DD):2017
Title of Journal:Monthly Notices of the Royal Astronomical Society
Issue / Number:4
Start Page:4568
End Page:4572
Audience:Not Specified
Abstract / Description: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 M1450 = -25.96 ± 0.08. PSO J006.1240+39.2219 has a strong Ly α emission compared with typical low-redshift quasars, but the measured near-zone region size is RNZ = 3.2 ± 1.1 proper megaparsecs, which is consistent with other quasars at z ∼ 6.
Free Keywords:quasars: general; quasars: individual; dark ages; reionization; first stars
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0035-8711 %R 10.1093/mnras/stw3287
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