Results 31 to 40 of about 1,686 (186)

Quasar Luminosity Function at z = 7

The Astrophysical Journal Letters, 2023
We present the quasar luminosity function (LF) at z = 7, measured with 35 spectroscopically confirmed quasars at 6.55 < z < 7.15. The sample of 22 quasars from the Subaru High- z Exploration of Low-Luminosity Quasars (SHELLQs) project, combined with 13 ...
Yoshiki Matsuoka, Masafusa Onoue, Kazushi Iwasawa, Michael A. Strauss, Nobunari Kashikawa, Takuma Izumi, Tohru Nagao, Masatoshi Imanishi, Masayuki Akiyama, John D. Silverman, Naoko Asami, James Bosch, Hisanori Furusawa, Tomotsugu Goto, James E. Gunn, Yuichi Harikane, Hiroyuki Ikeda, Kohei Inayoshi, Rikako Ishimoto, Toshihiro Kawaguchi, Satoshi Kikuta, Kotaro Kohno, Yutaka Komiyama, Chien-Hsiu Lee, Robert H. Lupton, Takeo Minezaki, Satoshi Miyazaki, Hitoshi Murayama, Atsushi J. Nishizawa, Masamune Oguri, Yoshiaki Ono, Taira Oogi, Masami Ouchi, Paul A. Price, Hiroaki Sameshima, Naoshi Sugiyama, Philip J. Tait, Masahiro Takada, Ayumi Takahashi, Tadafumi Takata, Masayuki Tanaka, Yoshiki Toba, Shiang-Yu Wang, Takuji Yamashita   +43 more
doaj   +1 more source

UCHL3 Regulates Subgenomic Flaviviral RNA Condensates to Promote Virus Propagation

Advanced Science, EarlyView.
ABSTRACT Flavivirus subgenomic RNAs (sfRNAs) antagonise antiviral defences, yet how sfRNAs are organized and maintained in cells remains poorly understood. Here we identify ubiquitin C‐terminal hydrolase L3 (UCHL3) as a post‐translational regulator of flavivirus sfRNA stability and function.
Oscar Trejo‐Cerro, Anna Beekmayer‐Dhillon, Qi Wen Teo, Lewis Siu, Ming Yuan Li, Kate J. Heesom, Adán Pinto‐Fernández, Sumana Sanyal   +7 more
wiley   +1 more source

Material Strategies for Stimulation and Recording in Neural Biocomputing Platforms

Advanced Electronic Materials, EarlyView.
Material strategies enabling stimulation and recording are central to neural biocomputing systems. This review examines how electronic materials govern the encoding of inputs and decoding of outputs in living neural networks. Advances in electrical, optical, and multimodal interfaces highlight emerging design principles for biocomputing platforms ...
Sehong Kang, Junggeon Park, Aryaman Joshi, Rakid Haque, Gyu Weon Hwang, Hyunjoon Kong   +5 more
wiley   +1 more source

A Hubble Diagram for Quasars [PDF]

Frontiers in Astronomy and Space Sciences, 2018
The cosmological model is at present not tested between the redshift of the farthest observed supernovae (z ~ 1.4) and that of the Cosmic Microwave Background (z ~ 1,100). Here we introduce a new method to measure the cosmological parameters: we show that quasars can be used as "standard candles" by employing the non-linear relation between their ...
Susanna Bisogni, Susanna Bisogni, Guido Risaliti, Guido Risaliti, Elisabeta Lusso   +4 more
openaire   +5 more sources

Red Type-1 Quasars after Cosmic Noon and Impact on L UV-related Quasar Statistics

The Astrophysical Journal
Over the past decades, nearly a million quasars have been explored to shed light on the evolution of supermassive black holes and galaxies. The ultraviolet-to-optical spectra of type-1 quasars particularly offer insights into their black hole activities.
Yongjung Kim, Dohyeong Kim, Myungshin Im, Minjin Kim   +3 more
doaj   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

Impact of Radio-mode Feedback on the Covering Fraction of the Circumgalactic Medium of Quasars

The Astrophysical Journal
Utilizing data from the Low-Frequency Array Two-meter Sky Survey and the Sloan Digital Sky Survey, we assemble a sample of 1469 projected quasar pairs with detected radio emissions from foreground quasars, as well as a control sample of 5846 pairs ...
Wen-Qiang Liang, Zhi-fu Chen, Rui-Jing Lu, Jing Li, Zhe-Geng Chen   +4 more
doaj   +1 more source

Brain Health Deviation Index: A Comprehensive Brain Health Assessment Biomarker for Predicting Cognitive Decline and Polyvascular Stenosis

Brain Health, EarlyView.
ABSTRACT Assessing and quantifying brain health remains a pressing challenge, despite its importance for overall well‐being. Traditional methods that focus on isolated brain measures often fail to capture the multifaceted nature of brain health and may miss early signs of dysfunction.
Ziyang Liu, Shaodong Ding, Hao Liu, Jing Jing, Jian Cheng, Huaguang Zheng, Jiyang Jiang, Wei Wen, Zhe Zhang, Wanlin Zhu, Shiping Li, Yuesong Pan, Xueli Cai, Yijun Zhou, Chang Liu, Xia Meng, Yilong Wang, Hao Li, Yong Jiang, Haijun Niu, Nicole Kochan, Henry Brodaty, Tiemin Wei, Yubo Fan, Zixiao Li, Perminder S. Sachdev, Tao Liu, Yongjun Wang   +27 more
wiley   +1 more source

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey: Quasar Properties from Data Releases 10 to 12

The Astrophysical Journal Supplement Series
We present the quasar catalog from Data Releases 10 to 12 of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey, comprising quasars observed between 2021 September and 2024 June. We robustly identified 11,346 quasars, of
Bing Lyu, Xue-Bing Wu, Jun-Jie Jin, Yuming Fu, Yuxuan Pang, Huimei Wang, Rui Zhu, Su Yao, Yan-Li Ai, Yan-xia Zhang, Hai-long Yuan, Zhi-ying Huo   +11 more
doaj   +1 more source

Advancing Circular Strategies in Photovoltaics: Assessing Reuse Readiness Across Technical, Economic, and Environmental Dimensions in a Case Study

Progress in Photovoltaics: Research and Applications, EarlyView.
This study examines the reuse readiness of photovoltaic modules through the Swiss PV Circle project. Results confirm technical feasibility with cost savings from targeted preselection, whereas economic viability depends on module age, testing, and market conditions.
Roger Nyffenegger, Mija Frossard, Alexandre Voirol, Michael Gasser, Julien Winkelmann, Stefan Grösser, Nancy Bocken   +6 more
wiley   +1 more source