Results 101 to 110 of about 382 (184)

The covering factor of quasar broad absorption line clouds

The Astrophysical Journal, 1988
Two different interpretations of the phenomenon of broad absorption line (BAL) QSOs are presented and a resolution is suggested. One interpretation is that the BAL clouds cover most of the sky as viewed from the quasar; this implies that BALQSOs are an usual subset of the general class of QSOs.
openaire   +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

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

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

UEG Week 2025 Oral Presentations

United European Gastroenterology Journal, Volume 13, Issue S8, Page S7-S188, October 2025.
wiley   +1 more source

Radial Gradients Revealed by Multiscale Outflows from Down-the-barrel Spectroscopy toward a Quasar at Redshift 3.4

The Astrophysical Journal
Active galactic nucleus (AGN) feedback is a key ingredient in galaxy formation models and simulations. From an observational point of view, however, the channels of AGN feedback coupling to the interstellar medium (ISM) and circumgalactic medium (CGM ...
Weimin Yi, Paola Rodríguez Hidalgo, Chen Chen, P. B. Hall, Zhicheng He, R. P. Easton, D. P. Schneider, W. N. Brandt, Xue-Bing Wu, Kai-Xing Lu, Chuanjun Wang, Yuanjie Feng   +11 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