Results 111 to 120 of about 16,078 (195)

Discovery of spectacular quasar-driven superbubbles in red quasars. [PDF]

Sci Adv, 2023
Shen L, Liu G, He Z, Zakamska NL, Glikman E, Greene JE, Hu W, Mou G, Wylezalek D, Rupke DSN.   +9 more
europepmc   +1 more source

Molecular Outflow in the Reionization-epoch Quasar J2054-0005 Revealed by OH 119 μm Observations

The Astrophysical Journal
Molecular outflows are expected to play a key role in galaxy evolution at high redshift. To study the impact of outflows on star formation at the epoch of reionization, we performed sensitive Atacama Large Millimeter/submillimeter Array observations of ...
Dragan Salak, Takuya Hashimoto, Akio K. Inoue, Tom J. L. C. Bakx, Darko Donevski, Yoichi Tamura, Yuma Sugahara, Nario Kuno, Yusuke Miyamoto, Seiji Fujimoto, Suphakorn Suphapolthaworn   +10 more
doaj   +1 more source

Radio Emission from Broad Absorption Line Quasars

The Astrophysical Journal
Broad Absorption Line Quasars (BALQs) generally exhibit significant outflows that may interact with the surrounding medium, resulting in radio emission.
Sina Chen, Ehud Behar, Ari Laor, Nahum Arav   +3 more
doaj   +1 more source

AllBRICQS: The Discovery of Luminous Quasars in the Northern Hemisphere

The Astrophysical Journal Supplement Series
We present the second catalog of bright quasars from the All-sky BRIght, Complete Quasar Survey (AllBRICQS), focusing on spectroscopically observed quasars in the Northern Hemisphere with Galactic latitude ∣ b ∣ > 10°.
Yunyi Choi, Yuming Fu, Myungshin Im, Xue-Bing Wu, Christopher A. Onken, Christian Wolf, Seo-Won Chang, Hyeonho Choi, Mankeun Jeong, Yongjung Kim, Gu Lim, Yuxuan Pang, Taewan Kim, Jubee Sohn, Dohyeong Kim, Ji Hoon Kim, Eunhee Ko, Gregory S. H. Paek, Sungho Jung   +18 more
doaj   +1 more source

Multiphase Black Hole Feedback and a Bright [C ii] Halo in a LoBAL Quasar at z ∼ 6.6

The Astrophysical Journal
Although the mass growth of supermassive black holes during the epoch of reionization is expected to play a role in shaping the concurrent growth of their host galaxies, observational evidence of feedback at z ≳ 6 is still sparse.
Manuela Bischetti, Hyunseop Choi, Fabrizio Fiore, Chiara Feruglio, Stefano Carniani, Valentina D’Odorico, Eduardo Bañados, Huanqing Chen, Roberto Decarli, Simona Gallerani, Julie Hlavacek-Larrondo, Samuel Lai, Karen M. Leighly, Chiara Mazzucchelli, Laurence Perreault-Levasseur, Roberta Tripodi, Fabian Walter, Feige Wang, Jinyi Yang, Maria Vittoria Zanchettin, Yongda Zhu   +20 more
doaj   +1 more source

Discovery of Powerful Multivelocity Ultrafast Outflows in the Starburst Merger Galaxy IRAS 05189–2524 with XRISM

The Astrophysical Journal Letters
We observed the X-ray-bright ultraluminous infrared galaxy IRAS 05189−2524 with XRISM during its performance verification phase. The unprecedented energy resolution of the onboard X-ray microcalorimeter revealed complex spectral features at ∼7–9 keV ...
Hirofumi Noda, Satoshi Yamada, Shoji Ogawa, Kouichi Hagino, Ehud Behar, Omer Reich, Anna Ogorzalek, Laura Brenneman, Yuichi Terashima, Misaki Mizumoto, Francesco Tombesi, Pierpaolo Condò, Alfredo Luminari, Atsushi Tanimoto, Megan E. Eckart, Erin Kara, Takashi Okajima, Yoshihiro Ueda, Yuki Aiso, Makoto Tashiro   +19 more
doaj   +1 more source

Identifying Missing Quasars from the DESI Bright Galaxy Survey

The Astronomical Journal
The Dark Energy Spectroscopic Instrument (DESI) cosmology survey includes a Bright Galaxy Survey (BGS), which will yield spectra for over 10 million bright galaxies ( r   2, which are either faint quasars with nearby projected companions or very bright ...
S. Juneau, R. Canning, D. M. Alexander, R. Pucha, V. A. Fawcett, A. D. Myers, J. Moustakas, O. Ruiz-Macias, S. Cole, Z. Pan, J. Aguilar, S. Ahlen, S. Alam, S. Bailey, D. Brooks, E. Chaussidon, C. Circosta, T. Claybaugh, T. M. Davis, K. Dawson, A. de la Macorra, Arjun Dey, P. Doel, K. Fanning, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, C. Hahn, K. Honscheid, R. Kehoe, T. Kisner, A. Kremin, A. Lambert, M. Landriau, L. Le Guillou, M. Manera, P. Martini, A. Meisner, R. Miquel, A. Muñoz-Gutiérrez, J. Nie, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, C. Ravoux, M. Rezaie, G. Rossi, E. Sanchez, E. F. Schlafly, D. Schlegel, M. Schubnell, H. Seo, J. Silber, M. Siudek, D. Sprayberry, T. Tan, G. Tarlé, C. Yèche, Z. Zhou, H. Zou   +61 more
doaj   +1 more source

Lyman Limit System with O vi in the Circumgalactic Environment of a Pair of Galaxies

The Astrophysical Journal
We report on the analysis of a multiphase Lyman limit system (LLS) at z = 0.39047 identified toward the background quasar FBQS J0209–0438. The O VI doublet lines associated with this absorber have a different profile from the low-ionization metals and H ...
Dheerajkumar Khonde, Purvi Udhwani, Anand Narayanan, Sowgat Muzahid, Vikram Khaire, Martin Wendt   +5 more
doaj   +1 more source

Imprint of “Local Opacity” Effect in Gamma-Ray Spectrum of Blazar Jet

The Astrophysical Journal Letters
Relativistic jets from accreting supermassive black holes at cosmological distances can be powerful emitters of γ -rays. However, the precise mechanisms and locations responsible for the dissipation of energy within these jets, leading to observable γ ...
Sushmita Agarwal, Amit Shukla, Karl Mannheim, Bhargav Vaidya, Biswajit Banerjee   +4 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