ATTENZIONE! IL REPOSITORY E’ APERTO ESCLUSIVAMENTE ALL’IMMISSIONE DEI RAPPORTI TECNICI (COLLEZIONE 4.01). NON E’ POSSIBILE INSERIRE PRODOTTI IN TUTTE LE ALTRE COLLEZIONI, A CAUSA DI PROBLEMI TECNICI. THE REPOSITORY IS OPEN EXCLUSIVELY FOR THE SUBMISSION OF TECHNICAL REPORTS (COLLECTION 4.01). SUBMISSIONS TO ALL OTHER COLLECTIONS ARE TEMPORARILY UNAVAILABLE, DUE TO TECHNICAL ISSUES.
 

A quasar discovered at redshift 6.6 from Pan-STARRS1

Journal
Date Issued
2017
Author(s)
Tang, J.-J.
•
Goto, T.
•
Ohyama, Y.
•
Chen, W.-P.
•
Walter, F.
•
Venemans, B.
•
Chambers, K.C.
•
Banados, E.
•
•
Fan, X.
•
Farina, E.P.
•
Mazzucchelli, C.
•
Kaiser, N.
•
Magnier, E.A.
DOI
Abstract
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.
Uri
Url
Issn Identifier
0035-8711
Ads BibCode
2017MNRAS.466.4568T
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

Tang17_stw3287.pdf

Description
Pdf editoriale
Size

621.46 KB

Format

Adobe PDF

Checksum (MD5)

09cbcae0bd11da967cf48a7c60c9d0fd