Results 71 to 80 of about 267,309 (249)
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 +2 more
openaire +3 more sources
The Bochum Survey of the Southern Galactic Disk: IV. Multi‐Band Photometry
Astronomische Nachrichten, EarlyView.ABSTRACT The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6°‐wide stripe in the southern galactic disk from September 2010 to September 2019. These fields were observed between 21 and 407 times sim r′$$ {r}^{\prime } $$ultaneously in (8mag≲r′≲18mag$$ 8\kern0.6em \mathrm{mag}\lesssim {r}^{\prime}\lesssim 18\kern0.6em ...
Julia Blex +9 more
wiley +1 more source
The Astrophysical JournalInternal gas inflows driven by galaxy mergers are considered to enhance star formation rates (SFRs), fuel supermassive black hole growth, and stimulate active galactic nuclei (AGNs).
Kiyoaki Christopher Omori +8 more
doaj +1 more source
, 2003 2 pages, 2 figures, contribution in Scientific Highlights, SF2A-2003, to be published by EDP ...
Combes, F., Melchior, A. -L.
openaire +2 more sources
Sersic properties of disc galaxy mergers [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 Sersic parameters characterising the density profiles of remnants formed in collision-less disc galaxy mergers are obtained; no bulge is included in our simulations. For the luminous component we find that the Sersic index is n ~ (1.5,5.3) with ~ 3 +/- 1 and an effective radius of R_e ~ (1.6,12.9) kpc with ~ 5 +/- 3 kpc.
Aceves, H., Velazquez, H., Cruz, F.
openaire +2 more sources
Galaxy Mergers from the Largest to the Smallest Scales: Introduction and Overview [PDF]
, 2012 Galaxy mergers encompass a wide range of astrophysical phenomena, including cosmological considerations, gas and stellar dynamics, AGN evolution, and mergers of the central SMBHs.
Centrella, Joan
core
Galaxy Zoo: Multi-Mergers and the Millennium Simulation [PDF]
, 2011 We present a catalogue of 39 multiple-mergers found using the mergers catalogue of the Galaxy Zoo project for ...
Darg, D. W. +25 more
core +1 more source
The Age of Questions: Truth Regimes and Subjectivity in the Era of Large Language Models
Behavioral Sciences &the Law, EarlyView.ABSTRACT This essay explores how digital technologies shape subjectivity's infra‐political constitution, focusing on large language models (LLMs) like ChatGPT or Gemini within what philosophers, inspired by Michel Foucault, term the “digital truth regime.” After defining this regime, the essay identifies five key traits of LLMs: presentism in truth ...
Charles Corval
wiley +1 more source
Galaxy morphology, quenching, and mergers in the cluster environment
, 2019 Based on the catalogue from the KASI-Yonsei Deep Imaging Survey of Clusters targeting 14 clusters at 0.015 < z < 0.144, we introduce our findings on galaxy morphology, colour, and visual features generated by galaxy mergers. We find a clear trend between
Oh, Sree (6908312)
core +2 more sources
The Astrophysical JournalGalaxy mergers play an important role in galaxy evolution. Therefore, accurate merger identifications are paramount for achieving a complete understanding of how galaxies evolve. As we enter the era of large, deep, high-resolution imaging surveys, we can
Aimee L. Schechter +7 more
doaj +1 more source