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Integral field optical spectroscopy with the INTEGRAL fiber-based systemis used to map the extended ionized regions and gas flows in Mrk 273, one of the closest Ultraluminous Infrared galaxies (ULIRGs). The Hbeta and [OIII]5007 maps show…

Astrophysics · Physics 2009-10-31 L. Colina , S. Arribas , K. Borne

We have obtained integral-field spectroscopic data, using the SAURON instrument, of the bar and starbursting circumnuclear region in the barred spiral galaxy M100. From our data we have derived kinematic maps of the mean velocity and…

Astrophysics · Physics 2007-05-23 Emma L. Allard , Reynier F. Peletier , Johan H. Knapen

We present new Spitzer Space Telescope data on the nearby, low-metallicity starburst galaxy NGC 5253, from the Infrared Array Camera IRAC and the Infrared Spectrograph IRS. The mid-IR luminosity profile of NGC 5253 is clearly dominated by…

Astrophysics · Physics 2009-11-11 P. Beirao , B. R. Brandl , D. Devost , J. D. Smith , L. Hao , J. R. Houck

Nuclear star clusters (NSCs) are among the densest stellar systems in the Universe and often coexist with supermassive black holes (SMBHs) at galaxy centres. While SMBH formation histories are essentially lost, NSCs preserve evolutionary…

We present a HST/STIS spectroscopic and optical/radio imaging study of the Seyfert NGC 2110 aiming to measure the dynamics and understand the nature of the nuclear outflow in the galaxy. Previous HST studies have revealed the presence of a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 D. J. Rosario , M. Whittle , C. H. Nelson , A. S. Wilson

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

Molecular abundances are sensitive to UV-photon flux and cosmic-ray ionization rate. In starburst environments, the effects of high-energy photons and particles are expected to be stronger. We examine these astrochemical signatures through…

Using the IRAM 30-m telescope, CN and CO isotopologues have been measured toward the central regions of the nearby starburst galaxy NGC253 and the prototypical ultraluminous infrared galaxy Mrk231. In NGC253, the 12C/13C ratio is 40+-10.…

The Seyfert 1 galaxy NGC 7469 possesses a prominent nuclear starburst ring and a luminous active galactic nucleus (AGN). Evidence of an outflow in the innermost nuclear region has been found in previous works. We detect the ionized gas…

Astrophysics of Galaxies · Physics 2022-07-20 Xiaoyu Xu , Junfeng Wang

We report new observations from a systematic, spectroscopic, ultraviolet absorption-line survey that maps the spatial and kinematic properties of the high-velocity gas in the Galactic Center region. We examine the hypothesis that this gas…

Spatial and spectral analysis of deep ROSAT HRI and PSPC observations of the near edge-on starburst galaxy NGC 253 reveal diffuse soft X-ray emission, which contributes 80% to its total X-ray luminosity (L$_{\rm X} = 5 10^{39}$ \ergsec,…

Astrophysics · Physics 2007-05-23 W. Pietsch , A. Vogler , U. Klein , H. Zinnecker

We present James Webb Space Telescope (JWST) Integral Field Spectrograph observations of NGC 3256, a local infrared-luminous late-stage merging system with two nuclei roughly 1$\;\rm{kpc}$ apart, both of which have evidence of cold…

We have detected the H92alpha radio recombination line from two dwarf starburst galaxies, NGC 5253 and He 2-10, using the Very Large Array. Both the line data as well as the radio continuum data are used to model the properties of the…

Astrophysics · Physics 2009-11-06 Niruj R. Mohan , K. R. Anantharamaiah , W. M. Goss

We present emission line mapping of the strongly barred galaxy NGC 1530 obtained from Fabry-Perot interferometry in Halpha, at significantly enhanced angular resolution compared with published studies. The main point of the work is to…

Astrophysics · Physics 2009-11-10 A. Zurita , M. Relano , J. E. Beckman , J. H. Knapen

We present spatially resolved distributions and kinematics of the stars and molecular gas in the central 320pc of NGC1097. The stellar continuum confirms the previously reported 3-arm spiral pattern extending into the central 100pc. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 R. Davies , W. Maciejewski , E. Hicks , L. Tacconi , R. Genzel , H. Engel

We present a multi-phase study of the gas in the circumnuclear region (~1.1x1.0 kpc^2) of the nearby Seyfert 1.8 galaxy NGC 1365, observed in the context of the Mid-IR Activity of Circumnuclear Line Emission (MIRACLE) program. We combined…

We present a spatially resolved analysis of ionized gas at the nuclear region of the nearby galaxy NGC 1068. While NGC 1068 has been known to have gas outflows driven by its active galactic nucleus (AGN), more complex kinematical signatures…

Astrophysics of Galaxies · Physics 2021-02-24 Jaejin Shin , Jong-Hak Woo , Minjin Kim , Junfeng Wang

Gas and star velocity dispersions have been derived for eight circumnuclear star-forming regions (CNSFRs) and the nucleus of the spiral galaxy NGC3310 using high resolution spectroscopy in the blue and far red. Stellar velocity dispersions…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Guillermo F. Hagele , Angeles I. Diaz , Monica V. Cardaci , Elena Terlevich , Roberto Terlevich

We have mapped the stellar and gaseous kinematics, as well as the emission-line flux distributions and ratios, from the inner 450pc radius of Mrk1157, using 2D near-IR spectra obtained with the Gemini NIFS at a spatial resolution of 35pc.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Rogemar A. Riffel , Thaisa Storchi-Bergmann