The nature of luminous X-ray sources with mid-infrared counterparts by Alonso-Herrero, A, Perez-Gonzalez, P, Rigby, J, Rieke, G, Le Floc'h, E, Barmby, P, Page, M, Papovich, C, Dole, H, Egami, E, Huang, J, Rigopoulou, D, Cristobal-Hornillos, D, Eliche-Moral, C, Balcells, M, Prieto, M, Erwin, P, Engelbracht, C, Gordon, K, Werner, M, Willner, S, Fazio, G, Frayer, D, Hines, D, Kelly, D

“…Only about one-quarter of the hard X-ray/24 μm sources show pure type 1 active galactic nucleus (AGN) SEDs. More than half of the X-ray/24 μm sources have stellar emission-dominated or obscured SEDs, similar to those of local type 2 AGN and spiral/starburst galaxies. …”

MODELING THE Fe K LINE PROFILES IN TYPE I ACTIVE GALACTIC NUCLEI WITH A COMPTON-THICK DISK WIND by Tatum, M, Turner, T, Sim, SA, Miller, L, Reeves, J, Patrick, A, Long, K

“…The sources in this sample all contain moderately broad components of FeK-shell emission and are ideal candidates for testing the applicability of a Compton-thick accretion disk wind model to active galactic nucleus (AGN) emission components. Viewing angles through the wind allow the observer to see the absorption signature of the gas, whereas face-on viewing angles allow the observer to see the scattered light from the wind. …”

AGN STORM 2. I. First results: A Change in the Weather of Mrk 817

“…<jats:title>Abstract</jats:title> <jats:p>We present the first results from the ongoing, intensive, multiwavelength monitoring program of the luminous Seyfert 1 galaxy Mrk 817. While this active galactic nucleus was, in part, selected for its historically unobscured nature, we discovered that the X-ray spectrum is highly absorbed, and there are new blueshifted, broad, and narrow UV absorption lines, which suggest that a dust-free, ionized obscurer located at the inner broad-line region partially covers the central source. …”
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Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter by Collaboration, TPA, Abreu, P, Aglietta, M, Ahn, E, Allard, D, Allekotte, I, Allen, J, Castillo, J, Alvarez-Muñiz, J, Ambrosio, M, Aminaei, A, Anchordoqui, L, Andringa, S, Antičić, T, Anzalone, A, Aramo, C, Arganda, E, Arisaka, K, Arqueros, F, Asorey, H, Assis, P, Aublin, J, Ave, M, Avenier, M, Avila, G

“…The anisotropy was measured by the fraction of arrival directions that are less than $3.1^\circ$ from the position of an active galactic nucleus within 75 Mpc (using the V\'eron-Cetty and V\'eron $12^{\rm th}$ catalog). …”

Obscured activity: AGN, quasars, starbursts and uligs observed by the infrared space observatory by Verma, A, Lutz, D, Charmandaris, V, Klaas, U, Haas, M

“…ISO surveyed a wide range of active galaxies which, in the context of this review, includes those powered by intense bursts of star formation as well as those containing a dominant active galactic nucleus (AGN). Mid-infrared imaging resolved for the first time the dust enshrouded nuclei in many nearby galaxies, while a new era in infrared spectroscopy was opened by probing a wealth of atomic, ionic and molecular lines as well as broad band features in the mid-and farinfrared. …”

Evolution of interstellar medium, star formation, and accretion at high redshift by Scoville, N, Lee, N, Bout, P, Diaz-Santos, T, Sanders, D, Darvish, B, Bongiorno, A, Casey, C, Murchikova, L, Koda, J, Capak, P, Vlahakis, C, Ilbert, O, Sheth, K, Morokuma-Matsui, K, Ivison, R, Aussel, H, Laigle, C, McCracken, H, Armus, L, Pope, A, Toft, S, Masters, D

“…The cosmic evolution of total ISM mass is estimated and linked to the evolution of SF and active galactic nucleus activity at early epochs.…”

2D kinematics and physical properties of z similar to 3 star-forming galaxies by Lemoine-Busserolle, M, Bunker, A, Lamareille, F, Kissler-Patig, M

“…We discovered that the nearby galaxy, VVDS-020297772 (which shows traces of active galactic nucleus activity), is in fact a companion at a similar redshift with a projected separation of 12 kpc. …”

H I absorption in nearby compact radio galaxies by Glowacki, M, Allison, J, Sadler, E, Moss, V, Curran, S, Musaeva, A, Deng, C, Parry, R, Sligo, M

“…H I absorption studies yield information on both active galactic nucleus (AGN) feeding and feedback processes. …”

Bubble-driven gas uplift in galaxy clusters and its velocity features by Zhang, C, Zhuravleva, I, Gendron-Marsolais, M-L, Churazov, E, Schekochihin, AA, Forman, WR

“…Buoyant bubbles of relativistic plasma are essential for active galactic nucleus feedback in galaxy clusters, stirring and heating the intracluster medium (ICM). …”

Electromagnetic Counterparts Powered by Kicked Remnants of Black Hole Binary Mergers in AGN Disks by Ken Chen, Zi-Gao Dai

“…The disk of an active galactic nucleus (AGN) is widely regarded as a prominent formation channel of binary black hole (BBH) mergers that can be detected through gravitational waves (GWs). …”
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No Small-scale Radio Jets Here: Multiepoch Observations of Radio Continuum Structures in NGC 1068 with the VLBA by Travis C. Fischer, Megan C. Johnson, Nathan J. Secrest, D. Michael Crenshaw, Steven B. Kraemer

“…We suggest that the most likely explanation for the observed emission is synchrotron radiation formed by shocked host media via interactions between active galactic nucleus winds and the host environment.…”
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Hot Accretion Flow in Two-Dimensional Spherical Coordinates: Considering Pressure Anisotropy and Magnetic Field by Hui-Hong Deng, De-Fu Bu

“…Outflows from an active galactic nucleus can interact with gas in its host galaxies. …”
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Investigating Ionization in the Intergalactic Medium by Brad Koplitz, Anjali Ramesh, Sanchayeeta Borthakur

“…Energetic processes, such as galactic feedback from star formation and active galactic nucleus winds, would be excellent candidates that can cause such widespread ionization.…”
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Observing—and Imaging—Active Galactic Nuclei with the Event Horizon Telescope by Chael, Andrew A., Johnson, Michael D., Doeleman, Sheperd S., Blackburn, Lindy, Wardle, John F. C., Freeman, William T., the Event Horizon Telescope Collaboration, Fish, Vincent, Bouman, Katherine, Chael, Andrew, Johnson, Michael, Doeleman, Sheperd, Wardle, John, Event Horizon Telescope Collaboration, Fish, Vincent L., Akiyama, Kazunori, Bouman, Katherine L., Freeman, William T.

“…Originally developed to image the shadow region of the central black hole in Sagittarius A* and in the nearby galaxy M87, the Event Horizon Telescope (EHT) provides deep, very high angular resolution data on other active galactic nucleus (AGN) sources too. The challenges of working with EHT data have spurred the development of new image reconstruction algorithms. …”
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Search for High-energy Neutrinos from Ultraluminous Infrared Galaxies with IceCube by Conrad, Janet

“…These dusty objects are generally powered by starbursts with star formation rates that exceed 100 M⊙ yr−1, possibly combined with a contribution from an active galactic nucleus. Such environments make ULIRGs plausible sources of astrophysical high-energy neutrinos, which can be observed by the IceCube Neutrino Observatory at the South Pole. …”
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Vigorous star formation in a bulge-dominated extremely red object at z=1.34 by Cotter, G, Simpson, C, Bolton, R

“…There is no evidence that the galaxy contains an active galactic nucleus. Analysis of a further two targets, which do not exhibit any features in our near-IR spectra, suggests that one is a quiescent galaxy in the redshift range 1.2 &lt; z &lt; 1.6, but that the other cannot be conclusively categorized as either star-forming or quiescent. …”

High-redshift obscured quasars: radio emission at sub-kiloparsec scales by Kloeckner, H, Martinez-Sansigre, A, Rawlings, S, Garrett, M

“…The physical extent of this emission is ~&lt;150 pc, and the derived properties indicate that this emission originates from an active galactic nucleus (AGN). The missing flux density is difficult to account for by star-formation alone, so radio components associated with jets of physical size &gt;~150 pc, and ~&lt; 40 kpc are likely to be present in most of the sources. …”

Herschel observations and a model for IRAS 08572+3915: a candidate for the most luminous infrared galaxy in the local (z &lt; 0.2) Universe by Efstathiou, A, Pearson, C, Farrah, D, Rigopoulou, D, Gracia-Carpio, J, Verma, A, Spoon, H, Afonso, J, Bernard-Salas, J, Clements, D, Cooray, A, Cormier, D, Etxaluze, M, Fischer, J, Gonzalez-Alfonso, E, Hurley, P, Lebouteiller, V, Oliver, S, Rowan-Robinson, M, Sturm, E

“…The model suggests that this object is powered by an active galactic nucleus (AGN) with a fairly smooth torus viewed almost edge-on and a very young starburst. …”

Obscured activity: AGN, quasars, starbursts and ULIGs observed by the infrared space observatory by Verma, A, Charmandaris, V, Klaas, U, Lutz, D, Haas, M

“…ISO surveyed a wide range of active galaxies which, in the context of this review, includes those powered by intense bursts of star formation as well as those containing a dominant active galactic nucleus (AGN). Mid-infrared imaging resolved for the first time the dust enshrouded nuclei in many nearby galaxies, while a new era in infrared spectroscopy was opened by probing a wealth of atomic, ionic and molecular lines as well as broad band features in the mid- and far-infrared. …”

Galaxy Zoo: The properties of merging galaxies in the nearby Universe - Local environments, colours, masses, star formation rates and AGN activity by Darg, D, Kaviraj, S, Lintott, C, Schawinski, K, Sarzi, M, Bamford, S, Silk, J, Andreescu, D, Murray, P, Nichol, R, Raddick, M, Slosar, A, Szalay, A, Thomas, D, Vandenberg, J

“…Following the study of Darg et al., we explore the environments, optical colours, stellar masses, star formation and active galactic nucleus activity in a sample of 3003 pairs of merging galaxies drawn from the Sloan Digital Sky Survey using visual classifications from the Galaxy Zoo project. …”