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Related papers: Metallicity Gradients in Simulated Disk Galaxies

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A detailed measurement is made of the metallicity distributions, kinematics and dynamics of the thin and thick disks, across a large disk volume (5.0 $\leq$ $R$ $\leq$ 15.0 kpc and $|Z|$ $\leq$3.0 kpc), by using the LAMOST-APOGEE red clump…

Astrophysics of Galaxies · Physics 2024-03-20 Weixiang Sun , Han Shen , Biwei Jiang , Xiaowei Liu

Based on the LAMOST survey and Sloan Digital Sky Survey (SDSS), we use low-resolution spectra of 130,043 F/G-type dwarf stars to study the kinematics and metallicity properties of the Galactic disk. Our study shows that the stars with…

Astrophysics of Galaxies · Physics 2016-10-12 Yingjie Jing , Cuihua Du , Jiayin Gu , Yunpeng Jia , Xiyan Peng , Yuqin Chen , Zhenyu Wu , Jun Ma , Xu Zhou , Zihuang Cao , Yonghui Hou , Yuefei Wang , Yong Zhang

In this letter we examine the evolution of the radial metallicity gradient induced by secular processes, in the disk of an $N$-body Milky Way-like galaxy. We assign a [Fe/H] value to each particle of the simulation according to an initial,…

Astrophysics of Galaxies · Physics 2015-06-18 A. Curir , A. L. Serra , A. Spagna , M. G. Lattanzi , P. Re Fiorentin , A. Diaferio

Making use of both MUSE observations of 85 galaxies from the survey GASP (GAs Stripping Phenomena in galaxies with MUSE) and a large sample from MaNGA (Mapping Nearby Galaxies at Apache Point Observatory survey) we investigate the…

Old open clusters (OCs) can constrain the chemical evolution of the Galactic disc through their metallicity gradients and age-metallicity relation but they are affected by low statistics. This work aims to determine precise and homogeneous…

Astrophysics of Galaxies · Physics 2025-07-23 Qingshun Hu , Caroline Soubiran

We trace the evolution of eight edge-on star-forming disk galaxies by analyzing stellar population properties of their thin and thick disks. These galaxies have relatively low stellar masses (4~$\times$~10$^9$ to…

We analyse luminosity-weighted ages and metallicity (Z) of galaxies in a continuous range of environments, i.e. clusters, filaments and voids prevalent in the Coma supercluster ($\sim 100 h^{-1}$ Mpc). Specifically, we employ two absorption…

Astrophysics of Galaxies · Physics 2020-06-24 Juhi Tiwari , Smriti Mahajan , Kulinder Pal Singh

We study the metallicity properties of galaxies in the zCOSMOS sample between 0.2<z<0.8. At z<0.46, where Ha and [NII] are detected, we find the same dependence of metallicity on stellar mass and Star Formation Rate (SFR), the Fundamental…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Giovanni Cresci , Filippo Mannucci , Veronica Sommariva , Roberto Maiolino , Alessandro Marconi , Marcella Brusa

Observations show that radial metallicity gradients in disk galaxies are relatively shallow, if not flat, especially at large galactocentric distances and for galaxies in the high-redshift universe. Given that star formation and metal…

Astrophysics of Galaxies · Physics 2015-06-11 Chao-Chin Yang , Mark Krumholz

Open clusters are known as excellent tools for various topics in Galactic research. For example, they allow accurately tracing the chemical structure of the Galactic disc. However, the metallicity is known only for a rather low percentage…

Solar and Stellar Astrophysics · Physics 2016-01-13 M. Netopil , E. Paunzen , U. Heiter , C. Soubiran

We investigate the origin of color gradients in cluster early-type galaxies to probe whether pure age or pure metallicity gradients can explain the observed data in local and distant (z approx 0.4) samples. We measure the surface brightness…

Astrophysics · Physics 2007-05-23 R. P. Saglia , C. Maraston , L. Greggio , R. Bender , B. Ziegler

We study the metallicity distribution and kinematic properties of 4,680 A/F/G/K-type giant stars with $|z|>$ 5 kpc selected from the LAMOST spectroscopic survey. The metallicity distribution of giant stars with 5 $<|z|\leqslant$ 15 kpc can…

Astrophysics of Galaxies · Physics 2018-08-15 Shuai Liu , Cuihua Du , Heidi Jo Newberg , Yuqin Chen , Zhenyu Wu , Jun Ma , Xu Zhou , Zihuang Cao , Yonghui Hou , Yuefei Wang , Yong Zhang

We model gas phase metallicity radial profiles of galaxies in the local Universe by building on the `bathtub' chemical evolution formalism - where a galaxy's gas content is determined by the interplay between inflow, star formation and…

Astrophysics of Galaxies · Physics 2019-05-15 F. Belfiore , F. Vincenzo , R. Maiolino , F. Matteucci

We study the impact of different galaxy statistics and empirical metallicity scaling relations on the merging rates and on the properties of compact objects binaries. First, we analyze the similarities and differences of using the star…

Astrophysics of Galaxies · Physics 2021-02-17 Lumen Boco , Andrea Lapi , Martyna Chruslinska , Darko Donevski , Alex Sicilia , Luigi Danese

The variations in metallicity and spatial patterns within star-forming regions of galaxies result from diverse physical processes unfolding throughout their evolutionary history, with a particular emphasis in recent events. Analysing MaNGA…

Astrophysics of Galaxies · Physics 2024-03-12 F. Jara-Ferreira , P. B. Tissera , E. Sillero , Y. Rosas-Guevara , S. E. Pedrosa , M. E. De Rossi , T. Theuns , L. Bignone

We study the structure, age and metallicity gradients, and dynamical evolution using a cosmological zoom-in simulation of a Milky Way-mass galaxy from the Feedback in Realistic Environments project. In the simulation, stars older than 6 Gyr…

We report on the gas-phase metallicity gradients of a sample of 264 star-forming galaxies at 0.6 < z < 2.6, measured through deep near-infrared Hubble Space Telescope slitless spectroscopy. The observations include 12-orbit depth…

In this paper we have compiled two new open cluster catalogues. In the first one, there are 119 objects with ages, distances and metallicities available, while in the second one, 144 objects have both absolute proper motion and radial…

Astrophysics · Physics 2009-11-07 L. Chen , J. L. Hou , J. J. Wang

We present an unbiased method for evaluating the ranges of ages and metallicities which are allowed by the photometric properties of the stellar populations that dominate the light of early-type galaxies in clusters. The method is based on…

Astrophysics · Physics 2009-10-30 I. Ferreras , S. Charlot , J. Silk

We investigate radial and vertical metallicity gradients for a sample of red clump stars from the RAdial Velocity Experiment (RAVE) Data Release 3. We select a total of 6781 stars, using a selection of colour, surface gravity and…

Astrophysics of Galaxies · Physics 2015-06-03 S. Bilir , S. Karaali , S. Ak , O. Onal , N. D. Dagtekin , T. Yontan , G. Gilmore , G. M. Seabroke