Results 21 to 30 of about 218,185 (279)

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

Secondary evolution of galaxies investigated by N-body simulations [PDF]

, 2008
In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core   +1 more source

Do galaxy mergers prefer under-dense environments? [PDF]

Context. Galaxy mergers play a crucial role in galaxy evolution. However, the correlation between mergers and the local environment of galaxies is not fully understood.Aims.
D J Farrow (16219811), Jonathan Loveday (4460899), W J Pearson (16263263), A Narayanan (10919025), A Durkalec (16286546), L E Suelves (23040248), E N Taylor (16191137), U Sureshkumar (16286543), A Pollo (16286549)   +8 more
core   +2 more sources

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

The Astrophysical Journal, 2017
Abstract 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.
Weigel, A, Schawinski, K, Caplar, N, Carpineti, A, Hart, R, Kaviraj, S, Keel, W, Kruk, S, Lintott, C, Nichol, R, Simmons, B, Smethurst, R   +11 more
openaire   +5 more sources

Caught in the web: Galaxy mergers along cosmic filaments

Astronomy & Astrophysics
Context. Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower density environments, where galaxy–galaxy mergers and other interactions can ...
Dulcien Carolina, Jaffé Yara L., Crossett Jacob P., Baier-Soto Raúl, Méndez-Hernández Hugo, Haines Christopher P., Cabrera-Vives Guillermo, Olivares Patricio, Vásquez-Bustos Paulo, Argudo-Fernández Maria, Vivanco Javiera, Bilton Lawrence, Bom Clécio R., D’Ago Giuseppe, Finoguenov Alexis, Kuchner Ulrike, Lima-Dias Ciria, Merluzzi Paola, Monachesi Antonela, Pallero Diego, Tejos Nicolas, Teixeira Gabriel S. M., Sifón Cristóbal, Carvalho Maiara S., Demarco Ricardo, Ibar Eduardo, Montaguth Gissel P., Piraino-Cerda Franco, Rescigno Umberto, Sampaio Vitor, Oliveira Schwarz Gustavo B., Smith Rory, Vulcani Benedetta, Malavasi Nicola   +33 more
doaj   +1 more source

Back to the Green Valley: How to Rejuvenate an S0 Galaxy through Minor Mergers

Galaxies, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Michela Mapelli
doaj   +1 more source

Magnetic fields during galaxy mergers [PDF]

Astronomy & Astrophysics, 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 during merger events. For this purpose, we employ a simplified model considering the merger event of
Rodenbeck, K., Schleicher, Dominik Reinhold Georg   +1 more
openaire   +4 more sources

Radialization of Satellite Orbits in Galaxy Mergers

The Astrophysical Journal, 2022
Abstract We consider the orbital evolution of satellites in galaxy mergers, focusing on the evolution of eccentricity. Using a large suite of N-body simulations, we study the phenomenon of satellite orbital radialization—a profound increase in the eccentricity of its orbit as it decays under dynamical friction.
Eugene Vasiliev, Vasily Belokurov, N. Wyn Evans   +2 more
openaire   +3 more sources

Interacting galaxies and mergers

Nature Astronomy, 2019
Two landmark papers in the 1970s contributed strongly to establishing the importance of galaxy interactions and mergers in the formation and evolution of galaxies, using only gravity, and the ensuing dynamical friction.
Athanassoula, E., Bosma, Albert
openaire   +3 more sources

Improved Constraints on Mergers with SZ, Hydrodynamical simulations, Optical, and X-ray (ICM-SHOX) [PDF]

EPJ Web of Conferences
Galaxy cluster mergers are representative of a wide range of physics, making them an excellent probe of the properties of dark matter and the ionized plasma of the intracluster medium.
Silich E.M., Bellomi E., Sayers J., ZuHone J., Chadayammuri U., Golwala S., Hughes D., Montaña A., Mroczkowski T., Nagai D., Sánchez D., Stanford S.A., Wilson G., Zemcov M., Zitrin A.   +14 more
doaj   +1 more source