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Related papers: Spectrophotometric Evolutionary Models for Tidal D…

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We present evolutionary synthesis models for galaxies of spectral types Sa through Sd with starbursts of various strengths triggered at various redshifts and study their photometric evolution before, during, and after their bursts in a…

Astrophysics · Physics 2022-05-11 Uta Fritze -- v. Alvensleben , Jens Bicker

Tidal Dwarf Galaxies (TDGs) are objects presently forming from gas which has been expelled from their parent galaxies during an interaction. We observed the CO emission of a sample of 11 TDGs, of which 8 were detected. The CO is found at…

Astrophysics · Physics 2007-05-23 U. Lisenfeld , J. Braine , O. Vallejo , P. -A. Duc , S. Leon , E. Brinks , V. Charmandaris

We carry out a statistical analysis of galaxy pairs selected from chemical hydrodynamical simulations with the aim at assessing the capability of hierarchical scenarios to reproduce recent observational results for galaxies in pairs.…

Astrophysics · Physics 2015-06-24 Josefa Perez , Patricia B. Tissera , Diego G. Lambas , Cecilia Scannapieco

Recent strides have been made developing dust evolution models for galaxy formation simulations but these approaches vary in their assumptions and degree of complexity. Here we introduce and compare two separate dust evolution models…

Tidal Dwarf Galaxies (TDG), or self-graviting objects created from the tidal forces in interacting galaxies, have been found in several merging systems. This work will focus on identifying TDG candidates among a sample of Luminous and…

Astrophysics · Physics 2008-10-31 D. Miralles-Caballero , L. Colina , S. Arribas

We investigate line formation in gas that is outflowing and optically thick to electron scattering, as may be expected following the tidal disruption of a star by a super-massive black hole. Using radiative transfer calculations, we show…

High Energy Astrophysical Phenomena · Physics 2018-03-21 Nathaniel Roth , Daniel Kasen

We present a semi-analytic model of isolated dwarf galaxy evolution and use it to study the build-up of observed correlations between dwarf galaxy properties. We analyse the evolution using models with averaged and individual halo mass…

Astrophysics of Galaxies · Physics 2020-02-12 Eimantas Ledinauskas , Kastytis Zubovas

We make use of a previous well tested Galactic model, but describing the observational behavior of the various stellar components in terms of suitable assumptions on their evolutionary status. In this way we are able to predict the expected…

Astrophysics · Physics 2009-11-07 V. Castellani , M. Cignoni , S. Degl'Innocenti , S. Petroni , P. G. Prada Moroni

Tidal dissipation in stars is one of the key physical mechanisms that drive the evolution of binary and multiple stars. As in the Earth oceans, it corresponds to the resonant excitation of their eigenmodes of oscillation and their damping.…

Solar and Stellar Astrophysics · Physics 2015-06-23 P. Auclair-Desrotour , S. Mathis , C. Le Poncin-Lafitte

Atmospheres of evolved AGB stars are heavily affected by pulsation, dust formation and mass loss, and they can become very extended. Time series of observed high-resolution spectra proved to be a useful tool to study atmospheric dynamics…

Astrophysics · Physics 2009-11-10 W. Nowotny , B. Aringer , S. Hoefner , R. Gautschy-Loidl , W. Windsteig

Near-ultraviolet (NUV) radiation from dwarf stars plays a critical role in shaping the habitability of planetary systems, yet its long-term evolution across different spectral types remains poorly investigated. Based on GALEX NUV…

Solar and Stellar Astrophysics · Physics 2025-09-24 Xue Li , Song Wang , Jun Ma , Henggeng Han , Yang Huang , Jifeng Liu

In systems undergoing starbursts the evolution of the young stellar population is expected to drive changes in the emission line properties. This evolution is usually studied theoretically, with a combination of evolutionary synthesis…

We present our recently developed 3-dimensional chemodynamical code for galaxy evolution. It follows the evolution of all components of a galaxy such as dark matter, stars, molecular clouds and diffuse interstellar matter (ISM). Dark matter…

Astrophysics · Physics 2007-05-23 P. Berczik , G. Hensler , Ch. Theis , R. Spurzem

This paper reviews the theoretical modelling of starburst galaxies with particular emphasis on the importance of the gas-phase physics in determining the form of the continuum SED and the emission line spectrum. Both line and continuum…

Astrophysics · Physics 2008-11-26 Michael A. Dopita

Dwarf galaxies make ideal laboratories to test galaxy evolution paradigms and cosmological models. Detailed studies of dwarfs across the spectrum allow us to gauge the efficacy of astrophysical processes at play in the lowest mass halos…

Astrophysics of Galaxies · Physics 2019-11-06 Martha P. Haynes

The dynamics of binary stars provides a unique avenue to gather insight into the study of the structure and dynamics of star clusters and galaxies. In this paper, we present the results of a set of $N$-body simulations aimed at exploring…

Astrophysics of Galaxies · Physics 2023-03-29 Alexander R. Livernois , Enrico Vesperini , Václav Pavlík

We include gaseous continuum and line emission into our GALEV models for the spectral and photometric evolution of Simple Stellar Populations (SSPs) for various metallicities in the range 0.02 <= Z/Zsun <= 2.5. This allows to extend them to…

Astrophysics · Physics 2010-04-06 Peter Anders , Uta Fritze -- v. Alvensleben

Blue Compact Dwarf and Dwarf Irregular galaxies are generally believed to be unevolved objects, due to their blue colors, compact appearance and large gas fractions. Many of these objects show an ongoing intense burst of star formation or…

Astrophysics · Physics 2007-05-23 S. Recchi , G. Hensler

Most Tidal Dwarf Galaxies (TDGs) so-far discussed in the literature may be considered as young ones or even newborns, as they are still physically linked to their parent galaxies by an umbilical cord: the tidal tail at the tip of which they…

Astrophysics · Physics 2007-05-23 Pierre-Alain Duc , Frederic Bournaud , Frederic Masset

We present a new set of evolutionary synthesis models of our GALEV code, specifically developed to include the gaseous emission of presently forming star clusters, in combination with an advanced tool to compare large model grids with…

Astrophysics · Physics 2007-05-23 P. Anders , U. Fritze--v. Alvensleben , R. de Grijs
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