Results 61 to 70 of about 375,984 (375)

Galaxy Zoo: Major Galaxy Mergers Are Not a Significant Quenching Pathway [PDF]

, 2017
We use stellar mass functions to study the properties and the significance of quenching through major galaxy mergers. In addition to SDSS DR7 and Galaxy Zoo 1 data, we use samples of visually selected major galaxy mergers and post-merger galaxies.
Anna K. Weigel, K. Schawinski, Neven Caplar, Alfredo Carpineti, R. E. Hart, S. Kaviraj, W. Keel, S. Kruk, C. Lintott, R. Nichol, B. Simmons, R. Smethurst   +11 more
semanticscholar   +1 more source

A complete catalogue of merger fractions in AGN hosts: No evidence for an increase in detected merger fraction with AGN luminosity

The Open Journal of Astrophysics, 2023
Despite the importance of Active Galactic Nuclei (AGN) in galaxy evolution, the mechanisms that fuel AGN activity remain poorly understood. Theoretical models suggest that major mergers of galaxies contribute strongly to AGN fuelling, particularly at ...
Carolin Villforth
doaj   +1 more source

A survey of dual active galactic nuclei in simulations of galaxy mergers: frequency and properties [PDF]

, 2016
We investigate the simultaneous triggering of active galactic nuclei (AGN) in merging galaxies, using a large suite of high-resolution hydrodynamical simulations.
Pedro R. Capelo, M. Dotti, M. Volonteri, L. Mayer, J. Bellovary, S. Shen   +5 more
semanticscholar   +1 more source

Galaxy Zoo: Mergers – Dynamical models of interacting galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for full insight into the processes that lead to enhanced star formation.
Holincheck, Anthony J., Wallin, John F., Borne, Kirk, Fortson, Lucy, Lintott, Chris, Smith, Arfon M., Bamford, Steven, Keel, William C., Parrish, Michael   +8 more
openaire   +6 more sources

Magnetic fields during galaxy mergers [PDF]

, 2016
Galaxy mergers are expected to play a central role for the evolution of galaxies, and may have a strong impact on their magnetic fields. We present the first grid-based 3D magneto-hydrodynamical simulations investigating the evolution of magnetic fields ...
K. Rodenbeck, D. Schleicher
semanticscholar   +1 more source

The Outer Stellar Halos of Galaxies: how Radial Merger Mass Deposition, Shells and Streams depend on Infall-Orbit Configurations

, 2019
Galaxy mergers are a fundamental part of galaxy evolution. To study the resulting mass distributions of different kinds of galaxy mergers, we present a simulation suite of 36 high-resolution isolated merger simulations, exploring a wide range of ...
Burkert, Andreas, Dolag, Klaus, Hoffmann, Tadziu L., Karademir, Geray S., Moster, Benjamin P., Remus, Rhea-Silvia, Steinwandel, Ulrich, Zhang, Jielai   +7 more
core   +1 more source

A Chandra X-Ray Survey of Optically Selected Close Galaxy Pairs: Unexpectedly Low Occupation of Active Galactic Nuclei

The Astrophysical Journal, 2023
High-resolution X-ray observations offer a unique tool for probing the still-elusive connection between galaxy mergers and active galactic nuclei (AGNs).
Lin He, Meicun Hou, Zhiyuan Li, Shuai Feng, Xin Liu   +4 more
doaj   +1 more source

Distinguishing Mergers and Disks in High-redshift Observations of Galaxy Kinematics [PDF]

Astrophysical Journal, 2019
The majority of massive star-forming galaxies at z ∼ 2 have velocity gradients suggestive of rotation, in addition to large amounts of disordered motions.
R. Simons, S. Kassin, G. Snyder, J. Primack, D. Ceverino, A. Dekel, C. Hayward, Nir Mandelker, K. Mantha, C. Pacifici, A. D. L. Vega, Weichen Wang   +11 more
semanticscholar   +1 more source

The Role Of Mergers In Galaxy Formation

, 2017
The combination of high spatial resolution from space and 3D spectroscopy from ground is a remarkable tool to dissect distant galaxies and their internal motions. Combining HST and VLT instruments, it has robustly captured the evolution of the Hubble Sequence since the last 8 billion years.
Hammer, Francois, Rodrigues, Myriam, Flores, Hector, Puech, Mathieu, Yang, Yanbin, Sauvaget, Tabatha   +5 more
openaire   +2 more sources

CORRELATION BETWEEN GALAXY MERGERS AND LUMINOUS ACTIVE GALACTIC NUCLEI [PDF]

, 2015
It is not yet clear what triggers the activity of active galactic nuclei (AGNs), but galaxy merging has been suspected to be one of the main mechanisms fueling the activity.
Jueun Hong, M. Im, Minjin Kim, L. Ho
semanticscholar   +1 more source