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Related papers: Ionised gas abundances in barred spiral galaxies

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With the goal of a thorough investigation of the ionised gas and its origin in early-type group-dominant galaxies, we present archival MUSE data for 18 galaxies from the Complete Local-Volume Groups Sample (CLoGS). This data allowed us to…

Astrophysics of Galaxies · Physics 2022-09-14 P. Lagos , S. I. Loubser , T. C. Scott , E. O'Sullivan , K. Kolokythas , A. Babul , A. Nigoche-Netro , V. Olivares , C. Sengupta

Bar-induced gas inflows towards the galaxy centres are recognized as a key agent for the secular evolution of galaxies. One immediate consequence is the accumulation of gas in the centre of galaxies where it can form stars and alter the…

Astrophysics of Galaxies · Physics 2015-12-09 E. Florido , A. Zurita , I. Perez , E. Perez-Montero , P. R. T. Coelho , D. A. Gadotti

The distribution of metals within a galaxy traces the baryon cycle and the buildup of galactic disks, but the detailed gas phase metallicity distribution remains poorly sampled. We have determined the gas phase oxygen abundances for 7,138…

The oxygen (O/H) and N/O abundance ratios along the bar of 16 barred spiral starburst galaxies are determined using long-slit spectroscopy. The abundance gradients and the spatial distribution of the ionized gas along the bar are used to…

Astrophysics · Physics 2007-05-23 S. Considere , R. Coziol , T. Contini , E. Davoust

This is the first paper of a series aimed to understand the formation and evolution of bars in early-type spirals and their influence in the evolution of the galaxy. Optical long-slit spectra along the major axis of the bar of a sample of…

Astrophysics · Physics 2015-05-13 I. Perez , P. Sanchez-Blazquez , A. Zurita

We present an analysis of the chemical abundance properties of $\approx$650 star-forming galaxies at $z \approx0.6-1.8$. Using integral-field observations from the $K$-band Multi-Object Spectrograph (KMOS), we quantify the [NII]/H$\alpha$…

We have obtained long-slit spectroscopy for a sample of 20 early-type barred galaxies to study the influence of bars in the building of galaxy bulges. Line strength indices were measured and used to derive age and metallicity gradients in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Isabel Perez , Patricia Sanchez-Blazquez

We present here the second part of a project that aims at solving the controversy on the issue of the bar effect on the radial distribution of metals in the gas-phase of spiral galaxies. In Paper I we presented a compilation of more than…

Astrophysics of Galaxies · Physics 2020-08-05 A. Zurita , E. Florido , F. Bresolin , I. Pérez , E. Pérez-Montero

We measured the oxygen abundances of the warm (T$\sim 10^{4}K$) phase of gas in seven early-type galaxies through long-slit observations. A template spectra was constructed from galaxies void of warm gas and subtracted from the…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Alex E. Athey , Joel N. Bregman

The origin of the cold gas in central galaxies in groups is still a matter of debate. We present Multi-Unit Spectroscopic Explorer (MUSE) observations of 18 optically selected local Brightest Group Galaxies (BGGs) to study the kinematics…

To better characterize the upper end of the galaxy stellar mass range, the MUSE Most Massive Galaxies (M3G) Survey targeted the most massive galaxies (M$>10^{12}$ M$_{\odot}$) found in the densest known clusters of galaxies at $z\sim0.046$.…

Astrophysics of Galaxies · Physics 2021-05-12 I. Pagotto , D. Krajnović , M. den Brok , E. Emsellem , J. Brinchmann , P. M. Weilbacher , W. Kollatschny , M. Steinmetz

We combine ionized gas ([N II] 6583) and stellar central velocity dispersions for a sample of 345 galaxies, with and without active galactic nuclei (AGNs), to study the dynamical state of the nuclear gas and its physical origin. The gas…

Astrophysics of Galaxies · Physics 2009-07-17 Luis C. Ho

Constraints on the Galactic bulge/bar structure and formation history from stellar kinematics and metallicities mainly come from relatively high-latitude fields (|b|>4) where a complex mix of stellar population is seen. We aim here to…

We have measured the mass of metals in the molecular gas in 13 submillimetre galaxies at z~4 in which the gas, based on previous observations, lies in a cold rotating disk. We measured the metal masses using either the submillimetre line or…

Astrophysics of Galaxies · Physics 2024-06-24 Stephen Eales , Haley Gomez , Loretta Dunne , Simon Dye , Matthew W. L. Smith

While we observe a large amount of cold interstellar gas and dust in a subset of the early-type galaxy (ETG) population, the source of this material remains unclear. The two main, competing scenarios are external accretion of lower mass,…

Astrophysics of Galaxies · Physics 2018-12-26 Emily Griffith , Paul Martini , Charlie Conroy

We present a search for outlying HII regions in the extended gaseous outskirts of nearby (D < 40 Mpc) galaxies, and subsequent multi-slit spectroscopy used to obtain the HII region nebular oxygen abundances. The galaxies in our sample have…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Jessica Werk , Mary Putman , Gerhardt Meurer , Nitza Santiago-Figueroa

Numerical simulations predict that bars represent a very important agent for triggering gas inflows, which in turn could lead to central star formation. Bars thus are thought to contribute to the formation of the bulge.This changes both,…

Astrophysics of Galaxies · Physics 2014-06-27 Raúl Cacho , Patricia Sánchez-Blázquez , Javier Gorgas , Isabel Pérez

[ABRIDGED] With the aim of constraining the source of excitation and the origin of the ionized gas in early-type galaxies (ETGs), we analyzed optical spectra of a sample of 65 ETGs mostly located in low density environments. Optical…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 F. Annibali , A. Bressan , R. Rampazzo , W. W. Zeilinger , O. Vega , P. Panuzzo

To investigate the role of bars in the chemical evolution of isolated disc galaxies, we performed a series of 39 gas dynamical simulations of isolated barred and unbarred galaxies with various masses, initial gas fractions, and AGN feedback…

Astrophysics of Galaxies · Physics 2018-05-02 Hugo Martel , Christian Carles , Fidèle Robichaud , Sara L. Ellison , David J. Williamson

We use a set of observational data for galaxy cold gas mass fraction and gas phase metallicity to constrain the content, inflow and outflow of gas in central galaxies hosted by halos with masses between $10^{11} M_{\odot}$ to $10^{12}…

Astrophysics of Galaxies · Physics 2015-06-22 Zhankui Lu , H. J. Mo , Yu Lu
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