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We use VLT-MUSE integral field unit data to study the ionized gas physical properties and kinematics as well as the stellar populations of the Seyfert 2 galaxy NGC\,232 as an opportunity to understand the role of AGN feedback on star…

Astrophysics of Galaxies · Physics 2023-12-11 Jose Henrique Costa-Souza , Rogemar A. Riffel , Oli L. Dors , Rogerio Riffel , Paulo C. da Rocha-Poppe

We present high-resolution observations of the 880 $\mu$m (rest-frame FIR) continuum emission in the z$=$4.05 submillimeter galaxy GN20 from the IRAM Plateau de Bure Interferometer (PdBI). These data resolve the obscured star formation in…

Astrophysics of Galaxies · Physics 2015-06-23 J. A. Hodge , D. Riechers , R. Decarli , F. Walter , C. L. Carilli , E. Daddi , H. Dannerbauer

We present early results of the Herschel PACS (70 and 160 \micron{}) and SPIRE (250, 350, and 500 \micron{}) survey of 313 low redshift ($\rm{z} < 0.05$), ultra-hard X-ray (14--195 keV) selected AGN from the 58 month Swift/BAT catalog.…

Astrophysics of Galaxies · Physics 2015-12-08 Richard F. Mushotzky , T. Taro Shimizu , Marcio Melendez , Michael Koss

We present the first results of an analysis of the properties of the molecular gas in the nuclear regions (r < 300 pc) of a sample of six nearby galaxies, based on new high spatial resolution observations obtained in the K-band with the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 X. Mazzalay , R. P. Saglia , Peter Erwin , M. H. Fabricius , S. P. Rusli , J. Thomas , R. Bender , M. Opitsch , N. Nowak , Michael J. Williams

We present optical integral field spectroscopy $-$ obtained with the Gemini Multi-Object Spectrograph $-$ of the inner $4.0 \times 5.8$ kpc$^2$ of the narrow line radio galaxy 3C 33 at a spatial resolution of 0.58 kpc. The gas emission…

Astrophysics of Galaxies · Physics 2017-07-19 Guilherme S. Couto , Thaisa Storchi-Bergmann , Allan Schnorr-Müller

The centers of bulges are formed dissipationally via gas inflows over short timescales: the 'starburst' mode of star formation (SF). Recent work has shown that detailed observations can be used to separate the stellar mass profile of these…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Philip F. Hopkins , Lars Hernquist

How efficiently star formation proceeds in galaxies is still an open question. Recent studies suggest that AGN can regulate the gas accretion and thus slow down star formation (negative feedback). However, evidence of AGN positive feedback…

Astrophysics of Galaxies · Physics 2015-01-21 Q. Salomé , P. Salomé , F. Combes

We present new, deep, narrow- and broad-band Hubble Space Telescope observations of seven of the most star-forming brightest cluster galaxies (BCGs). Continuum-subtracted [O II] maps reveal the detailed, complex structure of warm ($T \sim…

Recent theoretical and observational works indicate the presence of a correlation between the star formation rate (SFR) and the active galactic nuclei (AGN) luminosity (and, therefore, the black hole accretion rate) of Seyfert galaxies.…

We use the CARMA millimeter interferometer to map the Antennae Galaxies (NGC4038/39), tracing the bulk of the molecular gas via the 12CO(1-0) line and denser molecular gas via the high density transitions HCN(1-0), HCO+(1-0), CS(2-1), and…

In this work, we continue the study of the central region of NGC 613 by da Silva et al. (2020), by analysing the stellar and gas kinematics and the stellar archaeology in optical and near-infrared data cubes. The high spatial resolution of…

Astrophysics of Galaxies · Physics 2020-06-18 Patrícia da Silva , R. B. Menezes , J. E. Steiner

Using new APEX and JCMT spectroscopy of the CO 2-1 line, we undertake a controlled study of cold molecular gas in moderately luminous Active Galactic Nuclei (AGN) and inactive galaxies from the Luminous Local AGN with Matched Analogs…

Early studies of nearby Seyfert galaxies have led to the picture that the Narrow Line Region (NLR) is a cone-shaped region of gas ionized by radiation from a nuclear source collimated by a dusty torus, where the gas is in outflow. In this…

Astrophysics of Galaxies · Physics 2015-06-23 Thaisa Storchi-Bergmann

A simple model for star formation based on supernova (SN) feedback and gravitational heating via the collapse of perturbations in gravitationally unstable disks reproduces the Schmidt-Kennicutt relation between the star formation rate (SFR)…

Astrophysics of Galaxies · Physics 2021-12-14 Adi Nusser , Joseph Silk

We present an analysis of 3D spectra of Mrk 533, observed with the integral-field spectrograph MPFS and using the Fabry Perot Interferometer (FPI) of the SAO RAS 6-m telescope. We found emissions of gas from the active Sy 2 nucleus in the…

We have mapped the central region of the Seyfert 1 galaxy NGC 1097 in 12CO(J=2-1) with the Submillieter Array (SMA). The 12CO(J=2-1) map shows a central concentration and a surrounding ring, which coincide respectively with the Seyfert…

Astrophysics · Physics 2009-11-13 Pei-Ying Hsieh , Satoki Matsushita , Jeremy Lim , Kotaro Kohno , Satoko Sawada-Satoh

We compare atomic gas, molecular gas, and the recent star formation rate (SFR) inferred from H-alpha in the Small Magellanic Cloud (SMC). By using infrared dust emission and local dust-to-gas ratios, we construct a map of molecular gas that…

NGC 1808 is a nearby barred starburst galaxy with an outflow from the nuclear region. To study the inflow and outflow processes related to star formation and dynamical evolution of the galaxy, we have carried out \(^{12}\)CO (\(J=1-0\))…

Astrophysics of Galaxies · Physics 2016-06-01 Dragan Salak , Naomasa Nakai , Takuya Hatakeyama , Yusuke Miyamoto

We present new molecular gas maps of NGC5195 (alternatively known as M51b) from the Combined Array for Research in Millimeter Astronomy (CARMA), including 12CO(1-0), 13CO(1-0), CN(1-0), and CS(2-1). NGC5195 has also been detected in 3mm…