Results 91 to 100 of about 1,747 (185)

ASPIRE: The Environments and Dark Matter Halos of Luminous Quasars in the Epoch of Reionization

The Astrophysical Journal
We present a systematic study of the environments of 25 luminous quasars at z  > 6.5 from the ASPIRE program. Using JWST/NIRCam wide-field slitless spectroscopy data, we identified 487 galaxies at 5.3 ≲  z  ≲ 7.0 exhibiting [O iii ] emission. Among these,
Feige Wang, Jaclyn B. Champagne, Jiamu Huang, Jinyi Yang, Joseph F. Hennawi, Xiaohui Fan, Haowen Zhang, Tiago Costa, Roberto Decarli, Melanie Habouzit, Fengwu Sun, Eduardo Bañados, Xiangyu Jin, Koki Kakiichi, Romain A. Meyer, Yunjing Wu, Silvia Belladitta, Laura Blecha, Sarah E. I. Bosman, Zheng Cai, Thomas Connor, Frederick B. Davies, Anna-Christina Eilers, Zoltán Haiman, Hyunsung D. Jun, Mingyu Li, Zihao Li, Weizhe Liu, Alessandro Lupi, Jianwei Lyu, Chiara Mazzucchelli, Masafusa Onoue, Elia Pizzati, Maria Pudoka, Sofía Rojas-Ruiz, Jan-Torge Schindler, Yue Shen, Wei Leong Tee, Benny Trakhtenbrot, Maxime Trebitsch, Marianne Vestergaard, Marta Volonteri, Fabian Walter, Huanian Zhang, Siwei Zou   +44 more
doaj   +1 more source

Quasar Lifetime Measurements from Extended Lyα Nebulae at z ∼ 6

The Astrophysical Journal
The existence of billion-solar-mass black holes hosted in luminous quasars within the first gigayear of cosmic history poses a challenge to our understanding of supermassive black hole (SMBH) growth.
Dominika Ďurovčíková, Anna-Christina Eilers, Romain A. Meyer, Emanuele Paolo Farina, Eduardo Bañados, Frederick B. Davies, Joseph F. Hennawi, Chiara Mazzucchelli, Robert A. Simcoe, Fabian Walter   +9 more
doaj   +1 more source

Pushing the limits of detectability: mixed dark matter from strong gravitational lenses. [PDF]

Mon Not R Astron Soc, 2023
Keeley RE, Nierenberg AM, Gilman D, Birrer S, Benson A, Treu T.   +5 more
europepmc   +1 more source

Changing-look Active Galactic Nuclei from the Dark Energy Spectroscopic Instrument. V. Dramatic Variability in High-ionization Broad Emission Lines

The Astrophysical Journal Supplement Series
We present a systematic search for changing-look (CL) quasars at high redshift z  > 0.9 by crossmatching the spectroscopic data sets from the Dark Energy Spectroscopic Instrument Data Release 1 and Sloan Digital Sky Survey Data Release 18. We identify 97
Zhi-Qiang Chen, Jun-Jie Jin, Wei-Jian Guo, Sheng-Xiu Sun, Zhi-Wei Pan, Chen-Xu Liu, Hua-Qing Cheng, Jing-Wei Hu, Zhen-Feng Sheng, Hu Zou, Zhao-Bin Chen, Qi Zheng, Qi-Rong Yuan   +12 more
doaj   +1 more source

Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs. [PDF]

Sci Adv, 2022
He Z, Liu G, Wang T, Mou G, Green R, Bian W, Wang H, Ho LC, Sun M, Shen L, Arav N, Chen C, Wu Q, Guo H, Lin Z, Li J, Yi W.   +16 more
europepmc   +1 more source

Solar peculiar motion inferred from dipole anisotropy in redshift distribution of quasars appears to lie along the Galactic Centre direction. [PDF]

Sci Rep
Singal AK.
europepmc   +1 more source

The Ellis-Baldwin test. [PDF]

Philos Trans A Math Phys Eng Sci
Secrest NJ.
europepmc   +1 more source

First rest-frame infrared spectrum of a z > 7 quasar: MIRI-MRS observations of J1120+0641

, 2023
Bosman S, Álvarez-Márquez J, Colina L, Walter F, Herrero AA, Ward M, Östlin G, Greve T, Wright G, Bik A, Boogaard L, Caputi K, Costantin L, Eckart A, Marin MG, Gillman S, Güdel M, Henning T, Hjorth J, Iani E, Ilbert O, Jermann I, Labiano A, Lagage P, Langeroodi D, Peißker F, Ray T, Rinaldi P, Topinka M, Dishoeck Ev, Werf Pvd, Vandenbussche B.   +31 more
europepmc   +1 more source

Strong gravitational lenses from the Vera C. Rubin Observatory. [PDF]

Philos Trans A Math Phys Eng Sci
Shajib AJ, Smith GP, Birrer S, Verma A, Arendse N, Collett T, Daylan T, Serjeant S, LSST Strong Lensing Science Collaboration.   +8 more
europepmc   +1 more source

Challenges and opportunities for time-delay cosmography with multi-messenger gravitational lensing. [PDF]

Philos Trans A Math Phys Eng Sci
Birrer S, Smith GP, Shajib AJ, Ryczanowski D, Arendse N.   +4 more
europepmc   +1 more source