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相关论文: The Central Velocity Field in NGC 253 : Possible I…

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NGC 253 is a starburst galaxy of SAB(s)c type with increasing interest because of its high activity at unrivaled closeness. Its energetic event is manifested as the vertical gas features in its central molecular zone, for which stellar…

星系天体物理 · 物理学 2022-04-20 R. Konishi , R. Enokiya , Y. Fukui , K. Muraoka , K. Tokuda , T. Onishi

We present 5.2" x 2.6" resolution interferometry of CO J=1-0 emission from the starburst galaxy NGC 253. The high spatial resolution of these new data, in combination with recent high resolution maps of 13CO, HCN and near-infrared emission,…

天体物理学 · 物理学 2009-11-10 T. A. D. Paglione , O. Yam , T. Tosaki , J. M. Jackson

[abridged] We used J and Ks band images acquired with the VISTA telescope as part of the science verification to quantify the structures in the stellar disk of the barred Sc galaxy NGC253. Moving outward from the galaxy center, we find a…

星系天体物理 · 物理学 2015-06-19 E. Iodice , M. Arnaboldi , M. Rejkuba , M. J. Neeser , L. Greggio , O. A. Gonzalez , M. Irwin , J. P. Emerson

We investigate the kinematics of ionized gas within the nuclear starburst of NGC 253 with observations of the Brackett $\alpha$ recombination line at 4.05 $\mu$m. The goal is to distinguish motions driven by star-formation feedback from…

星系天体物理 · 物理学 2020-01-31 Daniel P. Cohen , Jean L. Turner , S. Michelle Consiglio

We present new observations of the strongly-barred galaxy NGC 1365, including new photometric images and Fabry-Perot spectroscopy, as well as a detailed re-analysis of the neutral hydrogen observations from the VLA archive. We find the…

天体物理学 · 物理学 2009-11-13 R. Zanmar Sanchez , J. A. Sellwood , B. J. Weiner , T. B. Williams

The problem of determining the pattern of gas motions in the central cases -- noncircular motions in the triaxial bar potential and motions in circular orbits but with orientation parameters different from those of the main disk -- are…

天体物理学 · 物理学 2009-10-31 A. V. Moiseev , V. V. Mustsevoi

We analyse new integral field spectroscopy of the inner region (central 2.5 kpc) of the spiral galaxy NGC 4321 to study the peculiar kinematics of this region. Fourier analysis of the velocity residuals obtained by subtracting an…

天体物理学 · 物理学 2009-11-13 A. Castillo-Morales , J. Jimenez-Vicente , E. Mediavilla , E. Battaner

We present new Very Large Array (VLA) observations toward NGC 253 of the recombination line H53alpha (43 GHz) at an angular resolution of 1.''5 X 1.''0. The free-free emission at 43 GHz is estimated to be ~100 mJy, implying a star formation…

天体物理学 · 物理学 2009-11-11 C. A. Rodriguez-Rico , W. M. Goss , J. -H. Zhao , Y. Gomez , K. R. Anantharamaiah

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…

天体物理学 · 物理学 2009-11-10 A. Zurita , M. Relano , J. E. Beckman , J. H. Knapen

We report high-resolution CO(1-0) observations in the central 6 kpc of the LINER galaxy NGC 5005 with the Owens Valley Radio Observatory millimeter array. Molecular gas is distributed in three components - a ring at a radius of about 3 kpc,…

天体物理学 · 物理学 2009-10-31 Kazushi Sakamoto , Andrew J. Baker , Nick Z. Scoville

Within the NUclei of GAlaxies project we have obtained IRAM PdBI and 30m 12CO(1-0) and 12CO(2-1) observations of the spiral galaxy NGC 6951. Previous work shows that there is indirect evidence of gas inflow from 3 kpc down to small radii: a…

星系天体物理 · 物理学 2015-05-27 T. P. R. van der Laan , E. Schinnerer , F. Boone , S. Garcia-Burillo , F. Combes , S. Haan , S. Leon , L. Hunt , A. J. Baker

This paper presents observations with intermediate spectral and spatial resolution along the major and minor axes of the starburst galaxy NGC 253. The spectral ranges analyzed are in the region of the stellar MgIb (5175 A), the near IR CaII…

天体物理学 · 物理学 2009-10-30 Francisco Prada , Carlos M. Gutierrez , C. D. McKeith

22 GHz water vapor emission was observed toward the central region of the spiral starburst galaxy NGC 253. Monitoring observations with the 100-m telescope at Effelsberg and measurements with the BnC array of the VLA reveal three distinct…

天体物理学 · 物理学 2009-11-10 C. Henkel , A. Tarchi , K. M. Menten , A. B. Peck

We carried out $^{12}$CO(J = 1 -0) observations toward bar and arm regions of strongly barred galaxies, NGC 1300 and NGC 5383, with the Nobeyama 45-m radio telescope (beamsize of 1-2 kpc in the galaxies). The aim of the observations is to…

星系天体物理 · 物理学 2018-04-04 Fumiya Maeda , Kouji Ohta , Yusuke Fujimoto , Asao Habe , Junichi Baba

We present a detailed study of a molecular outflow feature in the nearby starburst galaxy NGC 253 using ALMA. We find that this feature is clearly associated with the edge of NGC 253's prominent ionized outflow, has a projected length of…

Longitude-velocity (l-V) diagrams of H I and CO gas in the inner Milky Way have long been known to be inconsistent with circular motion in an axisymmetric potential. Several lines of evidence suggest that the Galaxy is barred, and gas flow…

天体物理学 · 物理学 2008-11-26 Benjamin J. Weiner , J. A. Sellwood

Near-infrared H_2 1-0 S(1) and Br_gamma velocity curves along the major axis of NGC 253 have revealed a central velocity gradient that is seven times steeper than that shown by the optical velocity curve. This is interpreted as an optical…

天体物理学 · 物理学 2009-10-28 F. Prada , A. Manchado , B. Canzian , R. F. Peletier , C. D. McKeith , J. E. Beckman

We present images of the barred galaxy NGC 7479 in the optical and near infrared broad--bands $B,V,R,J,H,K$, and images in H$\alpha$+[N II] and CO(J=1$\rightarrow$0) emission. The H$\alpha$ and CO emission in the bar are coincident and…

天体物理学 · 物理学 2009-10-22 A. C. Quillen , Jay. A. Frogel , Jeffrey D. P. Kenney , R. W. Pogge , D. L. DePoy

We report the detection of CO(2-1) and 3.1 mm and 1.3 mm continuum emission towards the extremely young starburst in NGC 5253, with data taken from the Owens Valley Millimeter Array. Faint CO emission originates in five molecular clouds…

天体物理学 · 物理学 2009-11-07 David S. Meier , Jean L. Turner , Sara C. Beck

within 24 lines with 80 characters) We present ^12CO (1-0) observations in the central 4.5 kpc (1 arcmin) of the Halpha/Radio lobe galaxy NGC 3079 with the Nobeyama Millimeter Array. The molecular gas shows four components: a main disk,…

天体物理学 · 物理学 2009-11-07 J. Koda , Y. Sofue , K. Kohno , H. Nakanishi , S. Onodera , S. K. Okumura , Judith A. Irwin
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