Showing 181 - 200 results of 1,161 for search '"active galactic nuclei"', query time: 0.15s Refine Results
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    Models of Emission-Line Profiles and Spectral Energy Distributions to Characterize the Multi-Frequency Properties of Active Galactic Nuclei by Giovanni La Mura, Marco Berton, Sina Chen, Abhishek Chougule, Stefano Ciroi, Enrico Congiu, Valentina Cracco, Michele Frezzato, Sabrina Mordini, Piero Rafanelli

    Published 2017-11-01
    “…The spectra of active galactic nuclei (AGNs) are often characterized by a wealth of emission lines with different profiles and intensity ratios that lead to a complicated classification. …”
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    Accretion-modified Stars in Accretion Disks of Active Galactic Nuclei: The Low-luminosity Cases and an Application to Sgr A* by Jian-Min Wang, Jun-Rong Liu, Yan-Rong Li, Yu-Yang Songsheng, Ye-Fei Yuan, Luis C. Ho

    Published 2023-01-01
    “…In this paper, we investigate the astrophysical processes of stellar-mass black holes (sMBHs) embedded in advection-dominated accretion flows (ADAFs) of supermassive black holes (SMBHs) in low-luminosity active galactic nuclei. The sMBH is undergoing Bondi accretion at a rate lower than the SMBH. …”
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    BASS. XLII. The Relation between the Covering Factor of Dusty Gas and the Eddington Ratio in Nearby Active Galactic Nuclei by C. Ricci, K. Ichikawa, M. Stalevski, T. Kawamuro, S. Yamada, Y. Ueda, R. Mushotzky, G. C. Privon, M. J. Koss, B. Trakhtenbrot, A. C. Fabian, L. C. Ho, D. Asmus, F. E. Bauer, C. S. Chang, K. K. Gupta, K. Oh, M. Powell, R. W. Pfeifle, A. Rojas, F. Ricci, M. J. Temple, Y. Toba, A. Tortosa, E. Treister, F. Harrison, D. Stern, C. M. Urry

    Published 2023-01-01
    “…Here we study a sample of 549 nearby ( z ≲ 0.1) hard X-ray (14–195 keV) selected nonblazar active galactic nuclei (AGN) and use the ratio between the AGN infrared and bolometric luminosity as a proxy of the covering factor. …”
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