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Related papers: Unveiling multiple AGN activity in galaxy mergers

200 papers

Active galactic nuclei (AGN), particularly the most luminous AGN, are commonly assumed to be triggered through major mergers, however observational evidence for this scenario is mixed. To investigate any influence of galaxy mergers on AGN…

Astrophysics of Galaxies · Physics 2017-07-05 Tim Hewlett , Carolin Villforth , Vivienne Wild , Jairo Mendez-Abreu , Milena Pawlik , Kate Rowlands

We consider the morphology, stellar populations, structure and AGN activity of 10 post-starburst (K+A) galaxies with HST observations, full spectral coverage in the optical, spectral energy distributions from 0.2 to 160 $\mu$m, X-ray and…

Astrophysics of Galaxies · Physics 2015-06-18 Roberto De Propris , Jorge Melnick

Using multiwavelength surveys of active galactic nuclei across a wide range of bolometric luminosities (10^{43}<L_{bol}(erg/s<5x10^{46}) and redshifts (0<z<3), we find a strong, redshift-independent correlation between the AGN luminosity…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 E. Treister , K. Schawinski , C. M. Urry , B. D. Simmons

Binary or dual active galactic nuclei (DAGN) are expected from galaxy formation theories. However, confirmed DAGN are rare and finding these systems has proved to be challenging. Recent systematic searches for DAGN using double-peaked…

Astrophysics of Galaxies · Physics 2018-05-09 Rubinur Khatun , M. Das , P. Kharb

We study the fraction of dual AGN in a sample of 167 nearby (z<0.05), moderate luminosity, ultra hard X-ray selected AGN from the all-sky Swift BAT survey. Combining new Chandra and Gemini observations together with optical and X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Michael Koss , Richard Mushotzky , Ezequiel Treister , Sylvain Veilleux , Ranjan Vasudevan , Margaret Trippe

We identify a fading AGN SDSS J220141.64+115124.3 from the internal Product Launch-11 (MPL-11) in Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey. The central region with a projected radius of $\sim$2.4 kpc is…

Astrophysics of Galaxies · Physics 2024-03-15 Hao Mo , Yan-Mei Chen , Zhi-Yun Zhang , Alexei Moiseev , Dmitry Bizyaev , Yong Shi , Qiu-Sheng Gu , Min Bao , Xiao Cao , Song-Lin Li

The role of active galactic nuclei (AGNs) during galaxy interactions and how they influence the star formation in the system are still under debate. We use a sample of 1156 galaxies in galaxy pairs or mergers (hereafter `pairs') from the…

Low-mass black holes hosted by dwarf galaxies offer valuable insights into galaxy formation and the growth of the massive black holes found in massive galaxies. Their detection as AGN is challenging due to their low luminosity and compact…

Astrophysics of Galaxies · Physics 2026-01-14 I. Flores , M. Mezcua , V. Rodríguez Morales

LIGO/Virgo has detected several binary black hole (BBH) merger events that may have originated in the accretion disks of Active Galactic Nuclei (AGN). These events require individual black hole masses that fall within the pair instability…

High Energy Astrophysical Phenomena · Physics 2022-12-07 Adam M. Dempsey , Hui Li , Bhupendra Mishra , Shengtai Li

The question of whether galaxy mergers are linked to the triggering of active galactic nuclei (AGN) continues to be a topic of considerable debate. The issue can be broken down into two distinct questions: 1) Can galaxy mergers trigger AGN?…

We present here the characterization of the main properties of a sample of 98 AGN host galaxies, both type-II and type-I, in comparison with those of about 2700 non-active galaxies observed by the MaNGA survey. We found that AGN hosts are…

Offset active galactic nuclei (AGNs) are AGNs that are in ongoing galaxy mergers, which produce kinematic offsets in the AGNs relative to their host galaxies. Offset AGNs are also close relatives of dual AGNs. We conduct a systematic search…

Astrophysics of Galaxies · Physics 2015-06-19 Julia M. Comerford , Jenny E. Greene

We discuss an ongoing study of the connection between galaxy merging/interaction and AGN activity, based on integral field spectroscopy. We focus on the search for AGN ionization in the central regions of mergers, previously not classified…

We have identified 105 galaxy pairs at z ~ 0.04 with the MaNGA integral-field spectroscopic data. The pairs have projected separations between 1 kpc and 30 kpc, and are selected to have radial velocity offsets less than 600 km/s and stellar…

There is compelling evidence that AGNs are strongly influenced by their environment. Therefore, studying the AGN population of clusters is essential, as both large-scale structures and AGN play key roles in galaxy evolution, though the…

Galaxy mergers have been shown to trigger AGN in the nearby universe, but the timescale over which this process happens remains unconstrained. The Multi-Model Merger Identifier (MUMMI) machine vision pipeline has been demonstrated to…

The merger rate of stellar-mass black hole binaries (sBHBs) inferred by the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) suggests the need for an efficient source of sBHB formation. Active galactic nucleus (AGN) disks…

High Energy Astrophysical Phenomena · Physics 2019-11-14 Amy Secunda , Jillian Bellovary , Mordecai-Mark Mac Low , K. E. Saavik Ford , Barry McKernan , Nathan Leigh , Wladimir Lyra , Zsolt Sandor

Binary black holes (BBHs) in the vicinity of Active Galactic Nuclei (AGNs) are particularly interesting systems from both a cosmological and astrophysical point of view. Matter and radiation fields within the dense AGN environment could…

High Energy Astrophysical Phenomena · Physics 2025-10-27 Leonardo Ricca , Matthias Vereecken , Christoph Raab , Mathieu Lamoureux , Giacomo Bruno , Gwenhaël De Wasseige

We present Chandra and optical observations of a candidate dual AGN discovered serendipitously while searching for recoiling black holes via a cross-correlation between the serendipitous XMM source catalog (2XMMi) and SDSS-DR7 galaxies with…

Astrophysics of Galaxies · Physics 2018-05-16 D. Lena , G. Panizo-Espinar , P. G. Jonker , M. A. P. Torres , M. Heida

We investigate the simultaneous triggering of active galactic nuclei (AGN) in merging galaxies, using a large suite of high-resolution hydrodynamical simulations. We compute dual-AGN observability time-scales using bolometric, X-ray, and…

Astrophysics of Galaxies · Physics 2017-06-28 Pedro R. Capelo , Massimo Dotti , Marta Volonteri , Lucio Mayer , Jillian M. Bellovary , Sijing Shen