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相关论文: Modeling the Gas Flow in the Bar of NGC 1365

200 篇论文

We study the extended nuclear emission of the starburst galaxy NGC 1365. A weak obscured AGN and a strong starburst both contribute to the observed X-ray, optical, infrared, and radio emission in the inner 2kpc. The X-ray emission is…

高能天体物理现象 · 物理学 2009-03-10 I. V. Strateva , S. Komossa

We analyse SAURON kinematic maps of the inner kpc of the early-type (Sa) barred spiral galaxy NGC5448. The observed morphology and kinematics of the emission-line gas is patchy and perturbed, indicating clear departures from circular…

We present an X-ray spectral and spatial analysis of the composite starburst/Seyfert galaxy NGC 1365. Excellent fits of the ROSAT PSPC spectrum are obtained by combining a soft thermal component with a hard powerlaw. The hard component may…

天体物理学 · 物理学 2007-05-23 Stefanie Komossa , Hartmut Schulz

Hot gaseous halos are predicted around all large galaxies and are critically important for our understanding of galaxy formation, but they have never been detected at distances beyond a few kpc around a spiral galaxy. We used the Chandra…

宇宙学与河外天体物理 · 物理学 2015-05-28 Michael E. Anderson , Joel N. Bregman

We compare the distribution of molecular gas and star formation activity in the bar region of six spirals (NGC 2903, NGC 3627, NGC 4321, NGC 5457, NGC 6946, & IC 342) from the BIMA Survey of Nearby Galaxies (SONG). The molecular gas, traced…

We have used the Submillimeter Array for the first interferometric CO imaging toward the starburst-Seyfert nucleus of the southern barred spiral galaxy NGC 1365, which is one of the four galaxies within 30 Mpc that have L_{8-1000micron} >=…

天体物理学 · 物理学 2008-11-26 Kazushi Sakamoto , Paul T. P. Ho , Rui-Qing Mao , Satoki Matsushita , Alison 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 multiphase, resolved study of the galactic wind extending from the nearby starburst galaxy NGC 4666. For this we use VLT/MUSE observations from the GECKOS program and HI data from the WALLABY survey. We identify both ionised…

We study the shape and kinematics of simulated dwarf galaxy discs in the APOSTLE suite of $\Lambda$CDM cosmological hydrodynamical simulations. We find that a large fraction of these gas-rich, star-forming discs show weak bars in their…

星系天体物理 · 物理学 2018-02-28 A. Marasco , K. A. Oman , J. F. Navarro , C. S. Frenk , T. Oosterloo

We present a pilot study on the nearby massive galaxy NGC 1291, in which we aim to constrain the dark matter in the inner regions, by obtaining a dynamical determination of the disc mass-to-light ratio (M/L). To this aim, we model the…

星系天体物理 · 物理学 2017-03-29 F. Fragkoudi , E. Athanassoula , A. Bosma

NGC 1097 is a nearby barred spiral galaxy believed to be interacting with the elliptical galaxy NGC 1097A located to its northwest. It hosts a Seyfert 1 nucleus surrounded by a circumnuclear starburst ring. Two straight dust lanes connected…

宇宙学与河外天体物理 · 物理学 2015-06-15 Lien-Hsuan Lin , Hsiang-Hsu Wang , Pei-Ying Hsieh , Ronald E. Taam , Chao-Chin Yang , David C. C. Yen

We present the kinematics of the ionized gas over the inner 140 arcsec (10 kpc) of NGC 1068 from observations with the HIFI Fabry-Perot interferometer. There is clear evidence for density wave streaming and bar-driven streaming across the…

天体物理学 · 物理学 2011-03-10 W. Dehnen , J. Bland-Hawthorn , A. Quirrenbach , G. Cecil

The bulk of the molecular line emission in the double barred galaxy NGC4303 as observed in its CO(1-0) line with the OVRO mm-interferometer comes from two straight gas lanes which run north-south along the leading sides of the large-scale…

天体物理学 · 物理学 2009-11-07 E. Schinnerer , W. Maciejewski , N. Z. Scoville , L. A. Moustakas

Neutral hydrogen observations of the nearby, edge-on spiral galaxy NGC 891 reveal the presence of an HI halo extending up to at least 5 kpc from the plane. This halo gas appears to rotate 25 to 100 km/s more slowly than the gas in the…

天体物理学 · 物理学 2009-05-29 R. A. Swaters , R. Sancisi , J. M. van der Hulst

NGC 1365 is a Seyfert 2 galaxy with a starburst ring in its nuclear region. In this work we look at the XMM Reflection Grating Spectrometer (RGS) data from four 2012-13, three 2007 and two 2004 observations of NGC 1365. We characterise the…

高能天体物理现象 · 物理学 2016-11-03 M. Whewell , G. Branduardi-Raymont , M. J. Page

We analyze 330 ks of {\it Chandra} X-ray imaging and spectra of the nearby, edge-on starburst and Seyfert Type 2 galaxy NGC 4945 to measure the hot gas properties along the galactic outflows. We extract and model spectra from 15 regions…

Line-of-sight velocities of gas and stars can constrain dark matter (DM) within rotationally supported galaxies if they trace circular orbits extensively. Photometric asymmetries may signify non-circular motions, requiring spectra with…

Using the Tremaine-Weinberg method, we measure the speed of the HI bar seen in the disk of NGC 3741. NGC 3741 is an extremely gas rich galaxy with an {H\,{\sc i}} disk which extends to about 8.3 times its Holmberg radius. It is also highly…

宇宙学与河外天体物理 · 物理学 2015-06-16 Arunima Banerjee , Narendra Nath Patra , Jayaram N. Chengalur , Ayesha Begum

We present 3.5cm and 6.2cm radio continuum maps in total and polarized intensity of the barred galaxies NGC 1097 and NGC 1365. Both galaxies exhibit radio ridges roughly overlapping with the massive dust lanes in the bar region. The…

天体物理学 · 物理学 2009-11-11 R. Beck , A. Fletcher , A. Shukurov , A. Snodin , D. D. Sokoloff , M. Ehle , D. Moss , V. Shoutenkov

We present the results of a new HI, optical, and H-alpha interferometric study of the nearby spiral galaxy NGC 157. Our combined C- and D-array observations with the VLA show a large-scale, ring-like structure in the neutral hydrogen…

天体物理学 · 物理学 2009-10-30 S. D. Ryder , A. V. Zasov , V. McIntyre , W. Walsh , O. Sil'chenko