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Related papers: Origin and Dynamical Support of Ionized Gas in Gal…

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We used deep long-slit spectra and integral-field spectral data to study the stars and ionized gas kinematics and stellar population properties in the lenticular barred galaxy NGC 7743. We have shown that ionized gas at the distances larger…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Ivan Yu. Katkov , Alexei V. Moiseev , Olga K. Sil'chenko

We present new observations of the [Ne II] emission from the ionized gas in Sgr A West with improved resolution and sensitivity. About half of the emission comes from gas with kinematics indicating it is orbiting in a plane tipped about…

Astrophysics of Galaxies · Physics 2015-06-05 Wesley T. Irons , John H. Lacy , Matthew J. Richter

We find significantly different diagnostic emission line ratios for the circumgalactic gas associated with galaxies of stellar masses above and below $10^{10.4}$ M$_\odot$ using SDSS spectroscopy. Specifically, in a sample of 17,393…

Astrophysics of Galaxies · Physics 2018-10-17 Huanian Zhang , Dennis Zaritsky , Jessica Werk , Peter Behroozi

We present an analysis of the H2 emission-line gas kinematics in the inner < 4 arcsec radius of six nearby spiral galaxies, based on AO-assisted integral-field observations obtained in the K-band with SINFONI/VLT. Four of the six galaxies…

Astrophysics of Galaxies · Physics 2015-06-18 X. Mazzalay , W. Maciejewski , P. Erwin , R. P. Saglia , R. Bender , M. H. Fabricius , N. Nowak , S. P. Rusli , J. Thomas

Energetic ionized gas outflows driven by active galactic nuclei (AGN) have been studied as a key phenomenon related to AGN feedback. To probe the kinematics of the gas in the narrow line region, [O III] ${\lambda}$5007 has been utilized in…

Astrophysics of Galaxies · Physics 2017-08-22 Daeun Kang , Jong-Hak Woo , Hyun-Jin Bae

The prevalence of outflow and feedback signatures in active galactic nuclei (AGN) is a major unresolved question which large integral field unit (IFU) surveys now allow to address. In this paper, we present a kinematic analysis of the…

Astrophysics of Galaxies · Physics 2020-01-29 Dominika Wylezalek , Anthony M. Flores , Nadia L. Zakamska , Jenny E. Greene , Rogemar A. Riffel

We analyze a volume-limited sample of massive bulge-dominated galaxies with data from both the Sloan Digital Sky Survey and the Galaxy Evolution Explorer (GALEX) satellite. The galaxies have central velocity dispersions greater than 100…

In order to study the state of gas in galaxies, diagrams of the relation of optical emission line fluxes are used allowing one to separate main ionization sources: young stars in the H II regions, active galactic nuclei, and shock waves. In…

Astrophysics of Galaxies · Physics 2018-09-19 D. V. Oparin , A. V. Moiseev

We have measured gas and stellar velocity dispersions in 5 circumnuclear starforming regions (CNSFRs) and the nucleus of the barred spiral galaxy NGC 3351. The stellar dispersions have been obtained from high resolution spectra of the CaT…

The validity of the emission line luminosity vs. ionised gas velocity dispersion ($L - \sigma$) correlation for HII galaxies (HIIGx), and its potential as an accurate distance estimator are assessed. For a sample of 128 local ($0.02\lesssim…

One percent of redshift z~0.1 Active Galactic Nuclei (AGNs) show velocity splitting of a few hundred km/s in the narrow emission lines in spatially integrated spectra. Such line profiles have been found to arise from the bulk motion of…

Astrophysics of Galaxies · Physics 2017-09-12 Yang Lyu , Xin Liu

We measure the Eddington ratio distribution of local optical narrow-line active galactic nuclei (AGN) as a function of host galaxy properties, as a potential test of galaxy formation theories of AGN feedback. We extract central…

Astrophysics of Galaxies · Physics 2026-05-11 Michael R. Blanton , Arjun Suresh , Kyle B. Westfall , Dou Liu , John Moustakas

The relationships between galaxies of intermediate stellar mass and moderate luminosity active galactic nuclei (AGNs) at 1<z<3 are investigated with the Galaxy Mass Assembly ultra-deep Spectroscopic Survey (GMASS) sample complemented with…

Astrophysics of Galaxies · Physics 2015-06-17 A. Cimatti , M. Brusa , M. Talia , M. Mignoli , G. Rodighiero , J. Kurk , P. Cassata , C. Halliday , A. Renzini , E. Daddi

We compare the molecular and ionized gas velocity dispersion of 9 nearby turbulent disks, analogues to high-redshift galaxies, from the DYNAMO sample using new ALMA and GMOS/Gemini observations. We combine our sample with 12 galaxies at…

We present the spatially resolved gas and stellar kinematics of a sample of ten hidden type 1 AGNs in order to investigate the true nature of the central source and the scaling relation with host galaxy stellar velocity dispersion. The…

Astrophysics of Galaxies · Physics 2020-12-02 Donghoon Son , Jong-Hak Woo , Da-In Eun , Hojin Cho , Marios Karouzos , Songyeon Park

We present a study of the relation between the [OIII] 5007A emission line width (sigma_{[OIII]}) and stellar velocity dispersion (sigma_{*}), utilizing a sample of 740 type 1 active galactic nuclei (AGNs) with high-quality spectra at…

Astrophysics of Galaxies · Physics 2023-03-15 Huynh Anh N. Le , Yongquan Xue , Xiaozhi Lin , Yijun Wang

Fast and energetic winds are invoked by galaxy formation models as essential processes in the evolution of galaxies. These outflows can be powered either by star-formation and/or AGN activity, but the relative dominance of the two…

We present an analysis of new and archival ALMA observations of molecular gas in twelve central cluster galaxies. We examine emerging trends in molecular filament morphology and gas velocities to understand their origins. Molecular gas…

We investigate the process of rapid star formation quenching in a sample of 12 massive galaxies at intermediate redshift (z~0.6) that host high-velocity ionized gas outflows (v>1000 km/s). We conclude that these fast outflows are most…