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Related papers: Observational hints for radial migration in disc g…

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We investigate the amount and spatial distribution of interstellar dust in edge-on spiral galaxies, using detailed radiative transfer modeling of a homogeneous sample of 12 galaxies selected from the CALIFA survey. Our automated fitting…

This series of papers aims at understanding the formation and evolution of non-barred disc galaxies. We use the new spectro-photometric decomposition code, C2D, to separate the spectral information of bulges and discs of a statistically…

Astrophysics of Galaxies · Physics 2021-04-28 J. Mendez-Abreu , A. de Lorenzo-Caceres , S. F. Sanchez

We have recently identified a new radial migration mechanism resulting from the overlap of spiral and bar resonances in galactic disks. Here we confirm the efficiency of this mechanism in fully self-consistent, Tree-SPH simulations, as well…

Astrophysics of Galaxies · Physics 2015-05-19 I. Minchev , B. Famaey , F. Combes , P. Di Matteo , M. Mouhcine , H. Wozniak

It is well known that stars move away from their birth location over time via radial migration. This dynamical process makes computing the correct chemical evolution, e.g., metallicity gradients, of galaxies very difficult. This dynamical…

Astrophysics of Galaxies · Physics 2023-12-13 Yuxi , Lu , Tobias Buck , David Nidever , Bridget Ratcliffe , Ivan Minchev , Andrea V. Macciò , Aura Obreja

Radial migration is an important process in the Galactic disk. A few open clusters show some evidence on this mechanism but there is no systematic study. In this work, we investigate the role of radial migration on the Galactic disk based…

Astrophysics of Galaxies · Physics 2020-04-29 Y. Q. Chen , G. Zhao

Stellar migration is an important dynamical process in Galactic disk. Here we model the radial stellar migration in the Galactic disk with an analytical method, then add it to detailed Galactic chemical evolution model to study the…

Astrophysics of Galaxies · Physics 2015-06-15 Yue Wang , Gang Zhao

The spatially resolved star formation histories are studied for 32 normal star-forming galaxies drawn from the the Spitzer Extended Disk Galaxy Exploration Science survey. At surface brightness sensitivities fainter than 28 mag…

We present a detailed analysis of the formation, evolution, and possible longevity of metallicity gradients in simulated dwarf galaxies. Specifically, we investigate the role of potentially orbit-changing processes such as radial stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Joeri Schroyen , Sven De Rijcke , Mina Koleva , Annelies Cloet-Osselaer , Bert Vandenbroucke

[Abridge] In the first paper of this series (paper I) we presented a new approach for studying the chemo-odynamical evolution in disk galaxies, focusing on the Milky Way. Here we extend these results to different distances from the Galactic…

Astrophysics of Galaxies · Physics 2014-12-03 Ivan Minchev , Cristina Chiappini , Marie Martig

Methods to recover the fossil record of galaxy evolution encoded in their optical spectra have been instrumental in processing the avalanche of data from mega-surveys along the last decade, effectively transforming observed spectra onto a…

The analysis of the kinematics of solar neighbourhood stars shows that the low and high metallicity tails of the thin disc are populated by objects which orbital properties suggest an origin in the outer and inner galactic disc,…

Astrophysics · Physics 2009-11-13 Misha Haywood

Bars in galaxies are thought to stimulate both inflow of material and radial mixing along them. Observational evidence for this mixing has been inconclusive so far however, limiting the evaluation of the impact of bars on galaxy evolution.…

The study of chemical evolution is of paramount importance for understanding the galaxies evolution. Models and observations propose an inside-out mechanism in the formation of spiral galaxy disks implying a negative radial gradient of…

Astrophysics of Galaxies · Physics 2024-11-26 A. F. S. Cardoso , O. Cavichia , M. Mollá , L. Sánchez-Menguiano

We study the role of radial migration of stars on the chemical evolution of the Milky Way disk. In particular, we are interested in the impact of that process on the local properties of the disk (age-metallicity relation and its dispersion,…

Astrophysics of Galaxies · Physics 2015-08-19 M. Kubryk , N. Prantzos , E. Athanassoula

We derived radial profiles and inner/outer gradients of various stellar population (SP) properties for 124 bright dwarf galaxies, $10^{7.53}\leq M_*/M_\odot\leq 10^{9.06}$, from the MaNDala sample, using integral field spectroscopy…

We study the radial migration of stars as a function of orbital action as well as the structural properties of a large suite of N-body simulations of isolated disc galaxies. Our goal is to establish a relationship between the radial…

Astrophysics of Galaxies · Physics 2020-05-27 Daniel Mikkola , Paul. J McMillan , David Hobbs

We present a two-dimensional multi-component photometric decomposition of 404 galaxies from the CALIFA Data Release 3. They represent all possible galaxies with no clear signs of interaction and not strongly inclined in the final CALIFA…

In an effort to probe the origin of surface brightness profile (SBP) breaks widely observed in nearby disk galaxies, we carry out a comparative study of stellar population profiles of 635 disk galaxies selected from the MaNGA spectroscopic…

Astrophysics of Galaxies · Physics 2020-07-14 Yimeng Tang , Qianhui Chen , Hong-Xin Zhang , Zesen Lin , Guangwen Chen , Yulong Gao , Zhixiong Liang , Haiyang Liu , Xu Kong

The colour and metallicity gradients observed in spiral galaxies suggest that the mass-to-light ratio (M*/L) of the stellar disc is a function of radius. This is indeed predicted by chemo-photometric models of galactic discs. We investigate…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Laura Portinari , Paolo Salucci

We study the internal gradients of stellar population properties within $1.5\;R_{\rm e}$ for a representative sample of 721 galaxies with stellar masses ranging between $10^{9}\;M_{\odot}$ to $10^{11.5}\;M_{\odot}$ from the SDSS-IV MaNGA…