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相关论文: SDSS-IV MaNGA: How Galaxy Interactions Influence A…

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Interactions between galaxies are predicted to cause gas inflows that can potentially trigger nuclear activity. Since the inflowing material can obscure the central regions of interacting galaxies, a potential limitation of previous optical…

We present the study of an X-ray selected sample of active galactic nuclei (AGN) in pairs at projected spatial separations 1 <$ r_p$/kpc < 100 at z < 0.1, using XMM-Newton and Chandra data. The pair sample is derived from an initial pool of…

We present a study on the incidence of major mergers and their impact on the triggering of nuclear activity in 47 type I and 236 type II optically-selected AGN from the MaNGA DR15 sample. From an estimate of non-parametric image predictors…

We examine the connection between galaxy mergers and the triggering of active galactic nuclei (AGNs) using a sample of 614 type 1 AGNs at $z<0.07$, along with a control sample of inactive galaxies matched to the AGNs for comparison. We used…

星系天体物理 · 物理学 2025-12-03 Yongmin Yoon , Yongjung Kim , Dohyeong Kim , Kyungwon Chun , Woowon Byun

The kinematic disturbances associated with major galaxy mergers are known to produce gas inflows, which in turn may trigger accretion onto the supermassive black holes (SMBH) of the participant galaxies. While this effect has been studied…

星系天体物理 · 物理学 2023-01-25 Robert W. Bickley , Sara L. Ellison , David R. Patton , Scott Wilkinson

Aims: To unveil the influence of galaxy-galaxy interactions on material transport driven by galactic bars towards the central regions of active galactic nuclei (AGN) galaxies and assess the efficiency of the combined mechanisms of…

星系天体物理 · 物理学 2024-09-04 Sol Alonso , Matias Vera-Rueda , Georgina Coldwell , Fernanda Duplancic , Valeria Mesa

It has long been known that galaxy interactions are associated with enhanced star formation. In a companion paper, we explored this connection by applying a variety of statistics to SDSS data. In particular, we showed that specific star…

天体物理学 · 物理学 2009-11-13 Cheng Li , Guinevere Kauffmann , Timothy M. Heckman , Simon D. M. White , Y. P. Jing

Representing simultaneous black hole accretion during a merger, binary active galactic nuclei (AGNs) could provide valuable observational constraints to models of galaxy mergers and AGN triggering. High-resolution radio interferometer…

星系天体物理 · 物理学 2015-12-09 Hai Fu , J. M. Wrobel , A. D. Myers , S. G. Djorgovski , Lin Yan

Galaxy mergers are transformative events that can cause gaseous inflows capable of triggering active galactic nuclei (AGN). Previous studies of AGN in simulations have mainly focused on major interactions (i.e. between approximately equal…

We studied AGN activity in twelve LSSs in the ORELSE survey, at 0.65<z<1.28, using a combination of Chandra observations, optical and NIR imaging and spectroscopy. We located a total of 61 AGNs across our sample that were successfully…

星系天体物理 · 物理学 2017-01-18 N. Rumbaugh , B. Lemaux , A. Tomczak , D. Kocevski , L. Lubin , P. -F. Wu , R. Gal , L. Shen , A. Mansheim , C. Fassnacht , G. Squires

Recent observations of changing-look active galactic nuclei (AGN) hint at a frequency of accretion activity not fully explained by tidal disruption events (TDEs) stemming from relaxation processes in nucleus star clusters (NSCs),…

高能天体物理现象 · 物理学 2023-10-03 Yihan Wang , Douglas N. C. Lin , Bing Zhang , Zhaohuan Zhu

In the framework of a systematic ALMA study of IR-selected main-sequence and starburst galaxies at z~1-1.7 at typical ~1" resolution, we report on the effects of mid-IR- and X-ray-detected active galactic nuclei (AGN) on the reservoirs and…

We present a study of the incidence of active galactic nucleus (AGN) in a sample of major merging systems at 0.3<z<2.5. Galaxies in this merger sample have projected separations between 3 to 15 kpc and are selected from the CANDELS/3D-HST…

Context.- This paper is part of a series involving the AMIGA project (Analysis of the Interstellar Medium of Isolated GAlaxies), which identifies and studies a statistically-significant sample of the most isolated galaxies in the northern…

宇宙学与河外天体物理 · 物理学 2012-10-29 J. Sabater , L. Verdes-Montenegro , S. Leon , P. Best , J. Sulentic

We analyze the idea that nuclear activity, either AGN or star formation, can be triggered by interactions, studying the percentage of active, HII and quiescent galaxies with companions. Our sample was selected from the Palomar survey, and…

天体物理学 · 物理学 2009-11-07 Henrique R. Schmitt

Galaxy mass and environment play a major role in the evolution of galaxies. In the transition from star-forming to quenched galaxies, Active galactic nuclei (AGN) have also a principal action. However, the connections between these three…

星系天体物理 · 物理学 2018-12-12 M. Argudo-Fernández , I. Lacerna , S. Duarte Puertas

We study how AGN activity changes across environments from galaxy pairs to clusters using $143\, 843$ galaxies with $z<0.2$ from the Sloan Digital Sky Survey (SDSS). Using a refined technique, we apply a continuous measure of AGN activity,…

We use 317,000 emission-line galaxies from the Sloan Digital Sky Survey to investigate line-ratio selection of active galactic nuclei (AGNs). In particular, we demonstrate that "star formation dilution" by HII regions causes a significant…

Galaxy mergers play an important role in the growth of galaxies and their supermassive black holes. Simulations suggest that tidal interactions could enhance black hole accretion, which can be tested by the fraction of binary active…

星系天体物理 · 物理学 2015-06-23 Hai Fu , A. D. Myers , S. G. Djorgovski , Lin Yan , J. M. Wrobel , A. Stockton

We present a spectroscopic study of the incidence of AGN nuclear activity in two samples of isolated galaxies (Karachentseva, V.E. & Varela, J.). Our results show that the incidence of non-thermal nuclear activity is about 43% and 31% for…

宇宙学与河外天体物理 · 物理学 2015-06-05 Francisco Hernandez-Ibarra , Deborah Dultzin , Yair Krongold , Ascencion Del Olmo , Jaime Perea , Jesus Gonzalez