Results 161 to 170 of about 38,366 (276)

A Reverberation Mapping Study of a Highly Variable Active Galactic Nucleus 6dFGS gJ022550.0-060145

The Astrophysical Journal
We use LCOGT observations (MJD 59434−59600) with a total exposure time of ≃50 hr and a median cadence of 0.5 day to measure the interband time delays (with respect to u ) in the g , r , and i continua of a highly variable active galactic nucleus (AGN ...
Danyang Li, Mouyuan Sun, Junfeng Wang, Jianfeng Wu, Zhixiang Zhang   +4 more
doaj   +1 more source

Constraining Active Galactic Nucleus Jets with Spectrum and Core Shift: The Case of M87 [PDF]

Kouichi Hirotani, Hsien Shang, Ruben Krasnopolsky, Satoki Matsushita, Britton Jeter, Keiichi Asada   +5 more
openalex   +1 more source

Resolving a Candidate Dual Active Galactic Nucleus with ∼100 pc Separation in MCG-03-34-64

The Astrophysical Journal
We report the serendipitous multiwavelength discovery of a candidate dual black hole system with a separation of ∼100 pc, in the gas-rich luminous infrared galaxy MCG-03-34-64 ( z = 0.016).
Anna Trindade Falcão, T. J. Turner, S. B. Kraemer, J. Reeves, V. Braito, H. R. Schmitt, L. Feuillet   +6 more
doaj   +1 more source

The ALPINE-ALMA [CII] survey: Double stellar population and active galactic nucleus activity in a galaxy at z ∼ 5.5 [PDF]

, 2023
L. Barchiesi, M. Dessauges‐Zavadsky, C. Vignali, F. Pozzi, R. Marques-Chaves, A. Feltre, A. Faisst, M. Béthermin, P. Cassata, S. Charlot, Yoshinobu Fudamoto, M. Ginolfi, E. Ibar, G. C. Jones, Michael Romano, D. Schaerer, L. Vallini, E. Vanzella, Lin Yan   +18 more
openalex   +1 more source

Simple relations from complex outflows: How the M−σ relation emerges in a multi-phase environment

Astronomy & Astrophysics
Context. The tight empirical M − σ relation between the mass of a supermassive black hole (SMBH) and the velocity dispersion of the host galaxy bulge is often interpreted as the result of self-regulation via active galactic nucleus (AGN) feedback.
Tartėnas M., Zubovas K., Skuodas E.
doaj   +1 more source

THE STARBURST-ACTIVE-GALACTIC-NUCLEUS CONNECTION: ASPITZERSEARCH FOR ACTIVE GALACTIC NUCLEI IN INFRARED-SELECTED STARBURST GALAXIES [PDF]

, 2011
Thomas George Dixon, R. D. Joseph
openalex   +1 more source

Spectropolarimetry of the changing-look active galactic nucleus Mrk 1018 [PDF]

, 2020
Damien Hutsemékers, Beatriz Agı́s-González, Frédéric Marin, Dominique Sluse   +3 more
openalex   +1 more source

Can the Symmetric Fermi and eROSITA Bubbles Be Produced by Tilted Jets?

The Astrophysical Journal
The Fermi Gamma-Ray Space Telescope reveals two large bubbles in the Galaxy, extending nearly symmetrically ∼50° above and below the Galactic center (GC).
Po-Hsun Tseng, H.-Y. Karen Yang, Chun-Yen Chen, Hsi-Yu Schive, Tzihong Chiueh   +4 more
doaj   +1 more source

ACTIVE GALACTIC NUCLEUS OBSCURATION FROM WINDS: FROM DUSTY INFRARED-DRIVEN TO WARM AND X-RAY PHOTOIONIZED. [PDF]

Astrophys J, 2012
Dorodnitsyn A, Kallman T.
europepmc   +1 more source

Active galactic nucleus formation channel for stellar binary black holes [PDF]

Shucheng Yang, Kuantong Tianchuan, Wenbiao Han, Shu-Cheng Yang, Hiromichi Tagawa, Wen-Biao Han   +5 more
openalex   +1 more source