Results 131 to 140 of about 85,255 (272)

A machine learning approach to assessing the presence of substructure in quasar host galaxies using the Hyper Suprime-Cam Subaru Strategic Program [PDF]

, 2022
Chris Nagele, J. D. Silverman, Tilman Hartwig, Junyao Li, Connor Bottrell, Xuheng Ding, Yoshiki Toba   +6 more
openalex   +1 more source

The multiple quasar Q2237+0305 under a microlensing caustic [PDF]

, 2008
T. Anguita, R. W. Schmidt, E. L. Turner, J. Wambsganss, R. L. Webster, K. A. Loomis, D. Long, R. McMillan   +7 more
openalex   +1 more source

A Super-Eddington, Lensing-magnified Quasar at z = 5.07 Observed with JWST

The Astrophysical Journal Letters
We present JWST/NIRCam F070W and F480M imaging for a quasar at z = 5.07, J0025–0145, which is magnified by a foreground lensing galaxy. Existing Hubble Space Telescope (HST) imaging does not have sufficient spatial resolution to determine whether the ...
Katherine Panebianco, Minghao Yue, Anna-Christina Eilers, Xiaohui Fan, Feige Wang, Jinyi Yang, Robert A. Simcoe   +6 more
doaj   +1 more source

Constraints on the black hole spin in the quasar SDSS J094533.99+100950.1 [PDF]

, 2011
B. Czerny, K. Hryniewicz, M. Nikołajuk, Aleksander Sądowski   +3 more
openalex   +1 more source

Highly Variable Quasar Candidates Selected from 4XMM-DR13 with Machine Learning

The Astrophysical Journal
We present a sample of 12 quasar candidates with highly variable soft X-ray emission, selected from the fourth XMM-Newton Serendipitous Source Catalog (4XMM-DR13), using random forest (RF).
Heng Wang, Yanli Ai, Yanxia Zhang, Yuming Fu, Wenfeng Wen, Liming Dou, Xue-Bing Wu, Xiangru Li, Zhiying Huo   +8 more
doaj   +1 more source

Fast Outflow in the Host Galaxy of the Luminous z = 7.5 Quasar J1007+2115

The Astrophysical Journal
The James Webb Space Telescope opens a new window to directly probe luminous quasars powered by billion solar mass black holes in the Epoch of Reionization and their coevolution with massive galaxies with unprecedented details.
Weizhe Liu, Xiaohui Fan, Jinyi Yang, Eduardo Bañados, Feige Wang, Julien Wolf, Aaron J. Barth, Tiago Costa, Roberto Decarli, Anna-Christina Eilers, Federica Loiacono, Yue Shen, Emanuele Paolo Farina, Xiangyu Jin, Hyunsung D. Jun, Mingyu Li, Alessandro Lupi, Madeline A. Marshall, Zhiwei Pan, Maria Pudoka, Ming-Yang Zhuang, Jaclyn B. Champagne, Huan Li, Fengwu Sun, Wei Leong Tee, Andrey Vayner, Haowen Zhang   +26 more
doaj   +1 more source

The UKIRT Infrared Deep Sky Survey and the search for the most distant quasars [PDF]

, 2008
D. Mortlock, Mitesh Patel, S. J. Warren, Bram Venemans, R. G. McMahon, P. C. Hewett, Chris Simpson, R. Sharp   +7 more
openalex   +1 more source

First Results from the JWST Early Release Science Program Q3D: The Fast Outflow in a Red Quasar at z = 0.44

The Astrophysical Journal
Quasar feedback may play a key role in the evolution of massive galaxies. The dust-reddened quasar F2M110648.35+480712 at z = 0.4352 is one of the few cases at its redshift that exhibits powerful quasar feedback through bipolar outflows.
Weizhe Liu, Sylvain Veilleux, Swetha Sankar, David S. N. Rupke, Nadia L. Zakamska, Dominika Wylezalek, Andrey Vayner, Caroline Bertemes, Yuzo Ishikawa, Yu-Ching Chen, Jenny E. Greene, Timothy Heckman, Guilin Liu, Hsiao-Wen Chen, Dieter Lutz, Sean D. Johnson, Nicole P. H. Nesvadba, Patrick Ogle, Nadiia Diachenko, Andy D. Goulding, Kevin N. Hainline, Fred Hamann, Hui Xian Grace Lim, Nora Lützgendorf, Vincenzo Mainieri, Ryan McCrory, Grey Murphree, Lu Shen, Eckhard Sturm, Lillian Whitesell   +29 more
doaj   +1 more source

Discovery of radio-loud quasars with z=4.72 and z=4.01 [PDF]

, 1998
I. Hook, R. G. McMahon
openalex   +1 more source

Mapping the Extended Lyα Emission within the Circumgalactic Medium of Quasars Hosted by Dusty Starbursts with CubeCarve

The Astrophysical Journal
We present a study of extended Ly α emission around four quasars hosted by dusty starbursts, which are composite systems thought to represent a transitional stage in quasar evolution.
Kevin Hall, Hai Fu
doaj   +1 more source