Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Radio active galactic nuclei"'
Autor:
Yu-Ling Chang, Ting-Wen Lan, J. Xavier Prochaska, Lucas Napolitano, Abhijeet Anand, J. Aguilar, S. Ahlen, D. Brooks, T. Claybaugh, A. de la Macorra, Arjun Dey, P. Doel, S. Gontcho A Gontcho, J. Guy, S. Juneau, T. Kisner, A. Lambert, M. Landriau, L. Le Guillou, M. Manera, P. Martini, A. Meisner, R. Miquel, J. Moustakas, A. D. Myers, J. Nie, C. Poppett, M. Rezaie, G. Rossi, E. Sanchez, M. Schubnell, H. Seo, D. Sprayberry, G. Tarlé, B. A. Weaver, H. Zou
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 191 (2024)
We explore the influence of radio-mode feedback on the properties of the cool circumgalactic medium (CGM). To this end, we assemble a statistical sample of approximately 30,000 radio galaxies with background quasars by combining optical spectroscopic
Externí odkaz:
https://doaj.org/article/9bfa807ae8e74a5cb79b2b2c4e786ba0
Autor:
Ka-Wah Wong, Colin M. Steiner, Allison M. Blum, Dacheng Lin, Rodrigo Nemmen, Jimmy A. Irwin, Daniel R. Wik
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 82 (2024)
3C 264 is one of the few FRI radio galaxies with detected TeV emission. It is a low-luminosity active galactic nucleus (LLAGN) and is generally associated with a radiatively inefficient accretion flow (RIAF). Earlier multiwavelength studies suggest t
Externí odkaz:
https://doaj.org/article/648f4a842d864636a9ac6e2701f3fa0c
Autor:
Yogesh Chandola, D. J. Saikia, Yin-Zhe Ma, Zheng Zheng, Chao-Wei Tsai, Di Li, Denis Tramonte, Hengxing Pan
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 1, p 48 (2024)
Neutral atomic hydrogen and molecular gas in the host galaxies of radio active galactic nuclei can be traced using H i 21 cm and OH-1667 MHz absorption lines to understand the fueling and feedback processes. We present the results of an H i and OH ab
Externí odkaz:
https://doaj.org/article/edc4dcb957894229a1a9a842dbf6632e
Autor:
Kianhong Lee, Masayuki Akiyama, Kotaro Kohno, Daisuke Iono, Masatoshi Imanishi, Bunyo Hatsukade, Hideki Umehata, Tohru Nagao, Yoshiki Toba, Xiaoyang Chen, Fumi Egusa, Kohei Ichikawa, Takuma Izumi, Naoki Matsumoto, Malte Schramm, Kenta Matsuoka
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 111 (2024)
We present Atacama Large Millimeter/submillimeter Array observations of the [C ii ] 158 μ m line and the underlying continuum emission of TN J0924−2201, which is one of the most distant known radio galaxies at z > 5. The [C ii ] line and 1 mm cont
Externí odkaz:
https://doaj.org/article/6d60473d18c74ebf8b0a63bdd63bc2db
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 34 (2024)
Based on the magnetization, an accretion disk with a large-scale magnetic field can be separated into either standard and normal evolution or magnetically arrested disk (MAD), which are difficult to identify from observations. It is still unclear whe
Externí odkaz:
https://doaj.org/article/49aa57d69b90487b8f663a6b13ba1f45
Autor:
Gregory Walsh, Sarah Burke-Spolaor
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 46 (2024)
Post-merger galaxies are unique laboratories to study the triggering and interplay of star formation and active galactic nucleus (AGN) activity. Combining new, high-resolution Jansky Very Large Array (VLA) observations with archival radio surveys, we
Externí odkaz:
https://doaj.org/article/e0b233a3161349dda76b2e6b5f9cdc4f
Autor:
Minchul Kam, Jeffrey A. Hodgson, Jongho Park, Motoki Kino, Hiroshi Nagai, Sascha Trippe, Alexander Y. Wagner
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 176 (2024)
We present the kinematics of the parsec-scale jet in 3C 84 from 2003 November to 2022 June observed with the Very Long Baseline Array at 43 GHz. We find that the C3 component, a bright feature at the termination region of the jet component ejected fr
Externí odkaz:
https://doaj.org/article/7ef6408f80c242c0b397704cfdc96664
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 273, Iss 2, p 30 (2024)
Giant radio sources (GRSs) are the single largest astrophysical objects known in the Universe that have grown to megaparsec scales (≥0.7 Mpc). GRSs are much rarer compared with normal-sized radio galaxies. Still, the reason for the formation of the
Externí odkaz:
https://doaj.org/article/174489a5befa453eb67284e408c880e9
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 5 (2024)
The nearby ultraluminous infrared galaxy (ULIRG) IRAS F01004−2237 exhibits 100 kpc scale continuum emission at radio wavelengths. The absence of extended X-ray emission in IRAS F01004−2237 has suggested an active galactic nucleus (AGN) origin for
Externí odkaz:
https://doaj.org/article/2c597295ed9946ae8ff4de2cbb86b69f
Autor:
Xu-Liang Fan
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 53 (2024)
Narrow-line Seyfert 1 galaxies (NLS1s), a subclass of active galactic nuclei (AGNs) in an early stage of the accretion process, are also found to host relativistic jets. However, currently known jetted NLS1s are rare. The majority of NLS1s are undete
Externí odkaz:
https://doaj.org/article/02541d6f74de4bd5b7524a52914b45c0