Results 171 to 180 of about 113,643 (296)

The host galaxies of radio-quiet quasars at ${0.5<}$ z ${<1.0}$ [PDF]

, 2006
T. Hyvönen, Jari Kotilainen, E. Örndahl, R. Falomo, M. Uslenghi   +4 more
openalex   +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

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

Velocity shift of Mg ii and Al iii broad absorption lines in quasar SDSS J134444.33+315007.6 [PDF]

, 2020
Wei-Jian Lu, Ying-Ru Lin
openalex   +1 more source

Photometric identification of quasars from the Sloan Survey [PDF]

, 2006
Rameshwar P. Sinha, Ninan Sajeeth Philip, Ajit K. Kembahvi, A. Mahabal   +3 more
openalex   +1 more source

The Chandra view of the relation between X-ray and UV emission in quasars [PDF]

, 2021
S. Bisogni, Elisabeta Lusso, F. Civano, E. Nardini, G. Risaliti, M. Elvis, G. Fabbiano   +6 more
openalex   +1 more source

Powerful Nuclear Outflows and Circumgalactic Medium Shocks Driven by the Most Luminous Known Obscured Quasar in the Universe

The Astrophysical Journal
We report integral field spectroscopy observations with the Near-Infrared Spectrograph on board the James Webb Space Telescope, targeting the 60 kpc environment surrounding the most luminous obscured quasar known at z = 4.6.
Andrey Vayner, Tanio Díaz-Santos, Peter R. M. Eisenhardt, Daniel Stern, Lee Armus, Daniel Anglés-Alcázar, Roberto J. Assef, Román Fernández Aranda, Andrew W. Blain, Hyunsung D. Jun, Chao-Wei Tsai, Niranjan Chandra Roy, Drew Brisbin, Carl D. Ferkinhoff, Manuel Aravena, Jorge González-López, Guodong Li, Mai Liao, Devika Shobhana, Jingwen Wu, Dejene Zewdie   +20 more
doaj   +1 more source

Implications from the optical to UV flux ratio of FeII emission in SDSS DR7 quasars [PDF]

, 2011
Hiroaki Sameshima
openalex   +1 more source

Forecast of observing time delay of the strongly lensed quasars with Muztagh-Ata 1.93m telescope [PDF]

, 2022
Shanhao Zhu, Y. Shu, Haibo Yuan, Jian-Ning Fu, Jian Gao, Jianghua Wu, Xiang‐Tao He, Kai Liao, Guoliang Li, Xinzhong Er, Bin Hu   +10 more
openalex   +1 more source

Galaxy and Mass Assembly (GAMA). The Properties of Quasar Host Galaxies: Star Formation Histories and Stellar Populations

The Astrophysical Journal
We investigated the star formation history and stellar populations of a sample of 205 Type I quasar host galaxies (0.1 < z < 0.35) and compared them with normal (nonactive) galaxies of the same mass and redshift within the volume of the Galaxy and Mass ...
Maria B. Stone, Roberto De Propris, Clare Wethers, Jari Kotilainen, Nischal Acharya, Benne Holwerda, Andrew M. Hopkins, Kevin Pimbblet   +7 more
doaj   +1 more source