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Related papers: The origin of ionized gas in retired galaxies: dyn…

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We investigate the kinematical and dynamical properties of cluster galaxy populations classified according to their dominant source of gas ionization, namely: star-forming (SF) galaxies, optical active galactic nuclei (AGN), mixed SF plus…

Astrophysics of Galaxies · Physics 2025-01-03 Greique A. Valk , Sandro B. Rembold

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

We present a study of the ionized gas in a sample of 65 nearby early-type galaxies, for which we have acquired optical intermediate-resolution spectra. Emission lines are detected in ~89 % of the sample. The incidence of emission appears…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-23 F. Annibali , A. Bressan , R. Rampazzo , W. W. Zeilinger

We present results of our ongoing study of the morphology and kinematics of the ionised gas in 48 representative nearby elliptical and lenticular galaxies using the SAURON integral-field spectrograph on the 4.2m William Herschel Telescope.…

Early-type retired galaxies (RGs, i.e. galaxies which no longer form stars) can be divided into two classes: those with no emission lines, here dubbed lineless RGs, and those with emission lines, dubbed liny RGs. Both types of galaxies…

Astrophysics of Galaxies · Physics 2018-09-03 F. Herpich , G. Stasińska , A. Mateus , N. Vale Asari , R. Cid Fernandes

We analyse the extended, ionized-gas emission of 24 early-type galaxies (ETGs) at $0<z<1$ from the ESO Distant Cluster Survey (EDisCS). We discuss different possible sources of ionization and favour star-formation as the main cause of the…

We present the first systematic investigation of the existence, spatial distribution, and kinematics of warm ionized gas as traced by the [O II] 3727AA emission line in 74 of the most massive galaxies in the local Universe. All of our…

Ionized gas and stellar kinematics have been measured along the major axes of seventeen nearby spiral galaxies of intermediate to late morphological type. We discuss the properties of each sample galaxy distinguishing between those…

Astrophysics · Physics 2009-11-10 A. Pizzella , E. M. Corsini , J. C. Vega-Beltran , F. Bertola

We reexamine the systematic properties of local galaxy populations, using published surveys of star formation, structure, and gas content. After recalibrating star formation measures, we are able to reliably measure specific star formation…

Quiescent galaxies in the distant universe exhibit a range of gas content that may indicate a variety of quenching processes are at play. Mapping the distribution and kinematics of the gas can illuminate its origins, but nearly all such…

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…

We present a study of the stellar populations of a sample of 39 local, field early-type galaxies whose HI properties are known from interferometric data. Our aim is to understand whether stellar age and chemical composition depend on the HI…

Astrophysics · Physics 2009-11-13 Paolo Serra , Scott C. Trager , Tom A. Oosterloo , Raffaella Morganti

A sample of completely isolated S0 galaxies has been studied by means of long-slit spectroscopy at the Russian 6-m telescope. 7 of 12 galaxies have revealed a presence of extended ionized-gas discs which rotation is mostly decoupled from…

Astrophysics of Galaxies · Physics 2015-06-18 Ivan Katkov , Olga Sil'chenko , Victor Afanasiev

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 present results of long-slit and panoramic spectroscopy of extended gaseous disks in 18 nearby S0 galaxies, mostly in groups. The gas in our S0s is found to be often accreted from outside that is implied by its decoupled kinematics: at…

Astrophysics of Galaxies · Physics 2019-09-11 Olga K. Sil'chenko , Alexei V. Moiseev , Oleg V. Egorov

We report the results of multicolour observations of 30 E/S0 galaxies with dust lanes. For each galaxy we obtained broad-band images and narrow-band images using interference filters isolating the H\alpha +[NII] emission lines to derive the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Ido Finkelman , Noah Brosch , José G. Funes S. J. , Alexei Y. Kniazev , Petri Väisänen

We have studied a sample of completely isolated galaxies by means of long-slit spectroscopy at the 6-m telescope. We have found that 7 of 12 (58 +/- 14 %) galaxies have revealed a presence of large-scale ionized-gas component which angular…

Astrophysics of Galaxies · Physics 2014-06-19 Ivan Katkov , Olga Sil'chenko , Victor Afanasiev

In order to study early type galaxies in their simplest environments, we have constructed a well-defined sample of 30 isolated galaxies. The sample contains all RC3 early-type galaxies with no other cataloged galaxy with known redshift…

Astrophysics · Physics 2009-10-31 James W. Colbert , John S. Mulchaey , Ann I. Zabludoff

By combining new long-slit spectral data obtained with the Southern African Large Telescope (SALT) for 9 galaxies with previously published our observations for additional 12 galaxies we study the stellar and gaseous kinematics as well as…

Astrophysics of Galaxies · Physics 2015-05-07 Ivan Yu. Katkov , Alexei Yu. Kniazev , Olga K. Sil'chenko
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