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Related papers: Regularized 3D spectroscopy with CubeFit: method a…

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We present 19.7, 31.5, and 37.1 {\mu}m images of the inner 6 pc of the Galactic Center of the Milky Way with a spatial resolution of 3.2 - 4.6'' taken by the Faint Object Infrared Camera on the Stratospheric Observatory for Infrared…

Astrophysics of Galaxies · Physics 2015-06-16 R. M. Lau , T. L. Herter , M. R. Morris , E. E. Becklin , J. D. Adams

We studied the central regions of the Galactic Centre to determine if the CircumNuclear Disk (CND) acts as an absorber or a barrier for the central X-rays diffuse emission. After reprocessing 4.6Ms of Chandra observations, we were able to…

High Energy Astrophysical Phenomena · Physics 2017-11-29 Enmanuelle Mossoux , Andreas Eckart

Aims. We have investigated neutral gas in the central cavity of the circumnuclear disk (CND) at the Galactic Center, where the ionized minispiral lies, to describe the H2 distribution and properties in this ionized environment. Methods.…

Astrophysics of Galaxies · Physics 2016-10-26 Anna Ciurlo , Thibaut Paumard , Daniel Rouan , Yann Clénet

The circumnuclear disc (CND) orbiting the Galaxy's central black hole is a reservoir of material that can ultimately provide energy through accretion, or form stars in the presence of the black hole, as evidenced by the stellar cluster that…

Astrophysics of Galaxies · Physics 2016-04-20 Marvin Blank , Mark R. Morris , Adam Frank , Jonathan J. Carroll-Nellenback , Wolfgang J. Duschl

We present CS(7-6) line maps toward the central parsec of the Galactic Center (GC), conducted with the Atacama Large Millimeter/submillimeter Array (ALMA). The primary goal is to find and characterize the gas structure in the inner cavity…

Astrophysics of Galaxies · Physics 2020-01-08 Pei-Ying Hsieh , Patrick M. Koch , Woong-Tae Kim , Paul T. P. Ho , Hsi-Wei Yen , Nanase Harada , Ya-Wen Tang

Within a few parsecs around the central Black Hole Sgr A*, chemistry in the dense molecular cloud material of the circumnuclear disk (CND) can be affected by many energetic phenomena such as high UV-flux from the massive central star…

We present the first large-scale mosaic performed with the Submillimeter Array (SMA) in the Galactic center. We have produced a 25-pointing mosaic, covering a ~2' x 2' area around Sgr A*. We have detected emission from two high-density…

Astrophysics of Galaxies · Physics 2011-02-11 María Montero-Castaño , Robeson M. Herrnstein , Paul T. P. Ho

The Milky Way Galactic Center hosts a $\sim4\times10^{6}\,M_\odot$ supermassive black hole (SMBH), Sgr A*. The dominant structures in its immediate vicinity are the nuclear star cluster (NSC), whose enclosed mass at 2 pc is approximately…

Astrophysics of Galaxies · Physics 2025-12-16 Asad Ukani , Lena Murchikova , Mark D. Gorski

The Circumnuclear Disk (CND) is a torus of dust and moleular gas rotating about the galactic centre and extends from 1.6 to 7pc from the central massive black hole SgrA*. Large Velocity Gradient modelling of selected transitions of HCN…

Astrophysics of Galaxies · Physics 2013-07-05 Ian Lindsay Smith

On the basis of ``sticky particle'' calculations, it is argued that the gas features observed within 10 pc of the Galactic Centre-- the circumnuclear disk (CND) and the ionized gas filaments-- as well as the newly formed stars in the inner…

Astrophysics · Physics 2009-10-30 R. H. Sanders

We study the properties of luminous stellar clumps identified in deep, high resolution HST/NIC2 F160W imaging at 1.6um of six z~2 star-forming galaxies with existing near-IR integral field spectroscopy from SINFONI at the VLT. Individual…

(abridged) In this paper we revisit the problem of inferring the innermost structure of the Milky Way's nuclear star cluster via star counts, to clarify whether it displays a core or a cusp around the central black hole. Through image…

Astrophysics of Galaxies · Physics 2017-12-27 E. Gallego-Cano , R. Schödel , H. Dong , F. Nogueras-Lara , A. T. Gallego-Calvente , P. Amaro-Seoane , H. Baumgardt

Stars form in molecular complexes that are visible as giant clouds ($\sim 10^{5-6} \mathrm{M}_\odot$) in nearby galaxies and as giant clumps ($\sim 10^{8-9}\mathrm{M}_\odot$) in galaxies at redshifts $z\approx1$$-$$3$. Theoretical…

The circumnuclear disk (CND) of the Galactic Center is exposed to many energetic phenomena coming from the supermassive black hole Sgr A* and stellar activities. These energetic activities can affect the chemical composition in the CND by…

Giant clumps are a characteristic feature of observed high-redshift disk galaxies. We propose that these kpc-sized clumps have a complex substructure and are the result of many smaller clumps self-organizing themselves into clump clusters…

Astrophysics of Galaxies · Physics 2016-03-16 Manuel Behrendt , Andreas Burkert , Marc Schartmann

The geometry of the dust distribution within the inner regions of Active Galactic Nuclei (AGN) is still a debated issue and relates directly with the AGN unified scheme. Traditionally, models discussed in the literature assume one of two…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 A. Feltre , E. Hatziminaoglou , J. Fritz , A. Franceschini

The Infrared Space Observatory Long wavelength Spectrometerhas been used to map distribution of the emission from a sample of 22 atomic, molecular and ionised lines toward the Circumnuclear Disk at the Galactic Centre. The CND disc is…

Astrophysics · Physics 2007-05-23 Glenn J. White , H. A. Smith , G. Stacey , C. Matt Bradford , S. J. Leeks , O. Sweet , J. Fischer

We have used the BIMA array to image the Galactic Center with a 19-pointing mosaic in HCN(1-0), HCO+(1-0), and H 42-alpha emission with 5 km/s velocity resolution and 13'' x 4'' angular resolution. The 5' field includes the circumnuclear…

We present a detailed analysis of the kinematics of the Galactic globular cluster NGC 6397 based on more than ~18,000 spectra obtained with the novel integral field spectrograph MUSE. While NGC 6397 is often considered a core collapse…

The Milky Way nuclear star cluster (MWNSC) is a crucial laboratory for studying the galactic nuclei of other galaxies, but its properties have not been determined unambiguously until now. Aims. We aim to study the size and spatial structure…

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