Results 101 to 110 of about 83,297 (253)

The Extremely Luminous Quasar Survey in the Pan-STARRS 1 Footprint (PS-ELQS) [PDF]

, 2019
We present the results of the Extremely Luminous Quasar Survey in the $3\pi$ survey of the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS; PS1).
Fan, Xiaohui, Hall, Patrick B., Huang, Yun-Hsin, Hughes, Allison, Litke, Katrina C., Rees, Jon M., Schindler, Jan-Torge, Wenzl, Lukas, Yang, Jinyi, Yue, Minghao   +9 more
core   +2 more sources

Modeling quasar variability through self-organizing map-based neural process [PDF]

Serbian Astronomical Journal
Conditional Neural Process (QNPy) has shown to be a good tool for modeling quasar light curves. However, given the complex nature of the source and hence the data represented by light curves, processing could be time-consuming.
Čvorović-Hajdinjak I.
doaj   +1 more source

Localized Energy Absorption through LaB6 Surface Modification of PA12 Enables Enhanced Tensile Performance in Diode Laser PBF‐LB

Chemistry–Methods, Volume 5, Issue 12, November 2025.
LaB6 surface modification of PA12 enables efficient NIR diode laser PBF‐LB processing, with enhanced tensile strength and tailored microstructures achieved at minimal additionaly energy. By reducing the need for high filler content, this approach expands the options and performance levels of advanced industrial‐grade polymer additive manufacturing. The
Nadine Stratmann, Michael Willeke, Simon Leupold, Kateryna Loza, Arne Lüddecke, Arno Kwade, Michael Schmidt, Stephan Barcikowski, Anna Rosa Ziefuss   +8 more
wiley   +1 more source

Galactic-scale Quasar Pairs from the Sloan Digital Sky Survey and Gaia DR3

The Astrophysical Journal
We perform a systematic search for galactic-scale quasar pairs and small-scale ( 10 ^44.5 erg s ^−1 ) at 0.5 
Yuanzhe Jiang, Yue Shen, Xin Liu, Nadia Zakamska, Ming-Yang Zhuang, Arran C. Gross, Junyao Li, Yu-Ching Chen, Yuzo Ishikawa   +8 more
doaj   +1 more source

Quasar viscosity crisis [PDF]

Nature Astronomy, 2018
For consistency with Nature policy, the version posted here is the text as submitted to Nature Astronomy in November 2017. The final version is available at the DOI below, and differs slightly in wording.
openaire   +3 more sources

First Results from the JWST Early Release Science Program Q3D: Powerful Quasar-driven Galactic Scale Outflow at z = 3

The Astrophysical Journal
Quasar-driven galactic outflows are a major driver of the evolution of massive galaxies. We report observations of a powerful galactic-scale outflow in a z = 3 extremely red and intrinsically luminous ( L _bol ≃ 5 × 10 ^47 erg s ^−1 ) quasar SDSSJ1652 ...
Andrey Vayner, Nadia L. Zakamska, Yuzo Ishikawa, Swetha Sankar, Dominika Wylezalek, David S. N. Rupke, Sylvain Veilleux, Caroline Bertemes, Jorge K. Barrera-Ballesteros, Hsiao-Wen Chen, Nadiia Diachenko, Andy D. Goulding, Jenny E. Greene, Kevin N. Hainline, Fred Hamann, Timothy Heckman, Sean D. Johnson, Hui Xian Grace Lim, Weizhe Liu, Dieter Lutz, Nora Lützgendorf, Vincenzo Mainieri, Ryan McCrory, Grey Murphree, Nicole P. H. Nesvadba, Patrick Ogle, Eckhard Sturm, Lillian Whitesell   +27 more
doaj   +1 more source

Surveying the Onset and Evolution of Supermassive Black Holes at High-z with AXIS

Universe
The nature and origin of supermassive black holes (SMBHs) remain an open matter of debate within the scientific community. While various theoretical scenarios have been proposed, each with specific observational signatures, the lack of sufficiently ...
Nico Cappelluti, Adi Foord, Stefano Marchesi, Fabio Pacucci, Angelo Ricarte, Melanie Habouzit, Fabio Vito, Meredith Powell, Michael Koss, Richard Mushotzky   +9 more
doaj   +1 more source

A Main Sequence for Quasars

Frontiers in Astronomy and Space Sciences, 2018
The last 25 years saw a major step forward in the analysis of optical and UV spectroscopic data of large quasar samples. Multivariate statistical approaches have led to the definition of systematic trends in observational properties that are the basis of
Paola Marziani, Deborah Dultzin, Jack W. Sulentic, Ascensión Del Olmo, C. A. Negrete, Mary L. Martínez-Aldama, Mauro D'Onofrio, Edi Bon, Natasa Bon, Giovanna M. Stirpe   +9 more
doaj   +1 more source

Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0 [PDF]

, 2022
Yoshiki Matsuoka, K. Iwasawa, Masafusa Onoue, Takuma Izumi, Nobunari Kashikawa, Michael A. Strauss, Masatoshi Imanishi, Tohru Nagao, Masayuki Akiyama, J. D. Silverman, Naoko Asami, James Bosch, Hisanori Furusawa, Tomotsugu Goto, James E. Gunn, Yuichi Harikane, Hiroyuki Ikeda, Rikako Ishimoto, Toshihiro Kawaguchi, N. Kato, 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, Masami Ouchi, P. A. Price, Hiroaki Sameshima, Naoshi Sugiyama, Philip J. Tait, Masahiro Takada, Ayumi Takahashi, Tadafumi Takata, Masayuki Tanaka, Yoshiki Toba, Yousuke Utsumi, Shiang‐Yu Wang, Takuji Yamashita   +43 more
openalex   +1 more source

The Quasar Feedback Survey: revealing the interplay of jets, winds, and emission-line gas in type 2 quasars with radio polarization [PDF]

, 2022
S. Silpa, Preeti Kharb, C. M. Harrison, A. Girdhar, Dipanjan Mukherjee, V. Mainieri, M. Jarvis   +6 more
openalex   +1 more source