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Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 ≤ z ≤ 7.0
Authors
Masayuki Akiyama
Naoko Asami
+38 more
James Bosch
Hisanori Furusawa
Tomotsugu Goto
James E. Gunn
Yuichi Harikane
Hiroyuki Ikeda
Masatoshi Imanishi
Kazushi Iwasawa
Takuma Izumi
Nobunari Kashikawa
Nanako Kato
Toshihiro Kawaguchi
Satoshi Kikuta
Kotaro Kohno
Yutaka Komiyama
Shuhei Koyama
Chien-Hsiu Lee
Robert H. Lupton
Yoshiki Matsuoka
Takeo Minezaki
Satoshi Miyazaki
Hitoshi Murayama
Tohru Nagao
Mana Niida
Atsushi J. Nishizawa
Akatoki Noboriguchi
Masamune Oguri
Yoshiaki Ono
Masafusa Onoue
Masami Ouchi
Paul A. Price
Hiroaki Sameshima
Andreas Schulze
John D. Silverman
Michael A. Strauss
Naoshi Sugiyama
Philip J. Tait
Masahiro Takada
Publication date
23 September 2020
Publisher
'American Astronomical Society'
Doi
Cite
Abstract
The American Astronomical Society, find out more The Institute of Physics, find out more THE FOLLOWING ARTICLE ISOPEN ACCESS Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 ≤ z ≤ 7.0 Yoshiki Matsuoka1, Kazushi Iwasawa2, Masafusa Onoue3, Nobunari Kashikawa4,5,6, Michael A. Strauss7, Chien-Hsiu Lee8, Masatoshi Imanishi5,6, Tohru Nagao1, Masayuki Akiyama9, Naoko Asami10Show full author list Published 2019 October 3 © 2019. The American Astronomical Society. The Astrophysical Journal, Volume 883, Number 2 DownloadArticle PDF DownloadArticle ePub Figures Tables References Download PDFDownload ePub 674 Total downloads 99 total citations on Dimensions. Turn on MathJax Share this article Share this content via email Share on Facebook Share on Twitter Share on Google+ Share on Mendeley Article information Abstract We report the discovery of 28 quasars and 7 luminous galaxies at 5.7 ≤ z ≤ 7.0. This is the tenth in a series of papers from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, which exploits the deep multiband imaging data produced by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The total number of spectroscopically identified objects in SHELLQs has now grown to 93 high-z quasars, 31 high-z luminous galaxies, 16 [O iii] emitters at z ~ 0.8, and 65 Galactic cool dwarfs (low-mass stars and brown dwarfs). These objects were found over 900 deg2, surveyed by HSC between 2014 March and 2018 January. The full quasar sample includes 18 objects with very strong and narrow Lyα emission, whose stacked spectrum is clearly different from that of other quasars or galaxies. While the stacked spectrum shows N v λ1240 emission and resembles that of lower-z narrow-line quasars, the small Lyα width may suggest a significant contribution from the host galaxies. Thus, these objects may be composites of quasars and star-forming galaxies
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Last time updated on 25/09/2020