Results 41 to 50 of about 51,951 (281)

The Effect of Gas Fraction on the Morphology and Time-scales of Disc Galaxy Mergers [PDF]

, 2009
Gas-rich galaxy mergers are more easily identified by their disturbed morphologies than mergers with less gas. Because the typical gas fraction of galaxy mergers is expected to increase with redshift, the under-counting of low gas-fraction mergers may ...
Abazajian, Abraham, Barden, Barnes, Barnes, Bell, Bell, Bell, Bournaud, Bournaud, Boylan-Kolchin, Boylan-Kolchin, Brinchmann, Brown, Bundy, Bundy, Cassata, Conselice, Conselice, Conselice, Cox, Cox, Cox, Cox, Cox, Daddi, De Ravel, Di Matteo, Di Matteo, Erb, Erb, Faber, Hopkins, Hopkins, Hopkins, Jennifer M. Lotz, Joel R. Primack, Jogee, Johansson, Jonsson, Jonsson, Jonsson, Katz, Kennicutt, Khalatyan, Le Fèvre, Leitherer, Lin, Lin, Lopez-Sanjuan, Lotz, Lotz, Lotz, Lotz, Martig, Melbourne, Mihos, Naab, Naab, Noekse, Patrik Jonsson, Patton, Robertson, Robertson, Rocha, Shi, Sinha, Springel, Springel, Springel, T. J. Cox, Tacconi, Van Dokkum, Wetzstein   +73 more
core   +1 more source

THE LOCAL DWARF GALAXIES:BUILDING BLOCKS OFMASSIVE ONES? I.THE FORNAX DWARF GALAXY

Odessa Astronomical Publications, 2008
A chemical evolution of the Local Group dwarf galaxy Fornax is considered in the framework of the merger scenario. We suppose a galactic stellar halo to be formed as separate fragments which then merge; thus, we can calculate the set of such the ...
T. V. Nykytyuk
doaj   +1 more source

Simulations of Galaxy Mergers [PDF]

Symposium - International Astronomical Union, 1983
The last few years have seen a considerable amount of effort devoted to the problem of simulating the coalescence of galaxies. After a discussion of the merits and limitations of the N-body techniques that have been used, I summarise the insight this research gives into the mechanisms driving strong interactions in galaxy collisions and into the ...
openaire   +1 more source

Origin and Evolution of Dust-obscured Galaxies in Galaxy Mergers

The Astrophysical Journal, 2022
Abstract Dust-obscured galaxies (DOGs), which are observationally characterized as faint in the optical and bright in the infrared, are the final stage of galaxy mergers and are essential objects in the evolution of galaxies and active galactic nuclei (AGNs).
Naomichi Yutani, Yoshiki Toba, Shunsuke Baba, Keiichi Wada   +3 more
openaire   +2 more sources

Star formation in mergers with cosmologically motivated initial conditions [PDF]

, 2015
We use semi-analytic models and cosmological merger trees to provide the initial conditions for multi-merger numerical hydrodynamic simulations, and exploit these simulations to explore the effect of galaxy interaction and merging on star formation (SF).
Kannan, Rahul, Karman, Wouter, Maccio, Andrea V., Moster, Benjamin P., Somerville, Rachel S.   +4 more
core   +2 more sources

A Green Pea Starburst Arising from a Galaxy–Galaxy Merger

The Astrophysical Journal Letters, 2022
Abstract Green Pea galaxies are low-redshift starburst dwarf galaxies, with properties similar to those of the high-redshift galaxies that reionized the universe. We report the first mapping of the spatial distribution of atomic hydrogen (Hi) in and around a Green Pea, GP J0213+0056 at z = 0.0399, using the Giant Metrewave Radio ...
S. Purkayastha, N. Kanekar, J. N. Chengalur, S. Malhotra, J. Rhoads, T. Ghosh   +5 more
openaire   +2 more sources

Formation of Globular Clusters in Galaxy Mergers

, 2004
We present a high-resolution simulation of globular cluster formation in a galaxy merger. For the first time in such a simulation, individual star clusters are directly identified and followed on their orbits.
Bate M., Bate M. R., Mordecai-Mark Mac Low, Ralf S. Klessen, Steinmetz M., White S. D. M., Yuexing Li   +6 more
core   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

The effect of galaxy mass ratio on merger--driven starbursts

, 2007
We employ numerical simulations of galaxy mergers to explore the effect of galaxy mass ratio on merger--driven starbursts. Our numerical simulations include radiative cooling of gas, star formation, and stellar feedback to follow the interaction and ...
Avishai Dekel, Barton E. J., Broeils A. H., Covington M., de Jong R. S., Ellison S. L., Joel R. Primack, Joseph R. D., Kormendy J., Lacey C., Patrik Jonsson, Rachel S. Somerville, Rocha M., Scannapieco C., Schweizer F., Struck C., T. J. Cox   +16 more
core   +1 more source

On the Frequency of Multiple Galaxy Mergers in ΛCDM Cosmological Simulations

The Astrophysical Journal
Mergers are believed to play a pivotal role in galaxy evolution, and measuring the galaxy merger fraction is a longstanding goal of both observational and theoretical studies.
Jonathan Mack, Shy Genel
doaj   +1 more source