Global disc models for galaxies NGC 1365, 6946, 7793 and UGC 6446
نویسندگان
چکیده
منابع مشابه
Kinematics of two dwarf galaxies in the NGC 6946 group
We present high velocity resolution (∼ 1.6 km s) Giant Meterwave Radio Telescope (GMRT) HI 21 cm synthesis images of the dwarf galaxies KK98 250 and KK98 251, as well as optical broad band images of KK98 250. We find that, despite being faint (MB . −14), both galaxies have regular velocity fields. In both cases the velocity fields are consistent with rigid body rotation. We derive rotation curv...
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We present λ3.5 cm and λ6.2 cm radio continuum maps in total and polarized intensity of the barred galaxies NGC 1097 (at 2 ′′ –15 ′′ resolution) and NGC 1365 (at 9 ′′ –25 ′′ resolution). A previously unknown radio galaxy southwest of NGC 1097 is reported. Apart from a smooth faint envelope and a bright central region, both galaxies exhibit radio ridges roughly overlapping with the massive dust ...
متن کاملCorrugated velocity patterns in the spiral galaxies : NGC 278 , NGC 1058 , NGC 2500 & UGC 3574
We address the study of the Hα vertical velocity field in a sample of four nearly face-on galaxies using long slit spectroscopy taken with the ISIS spectrograph attached to the WHT at the Roque de los Muchachos Observatory (Spain). The spatial structure of the velocity vertical component shows a radial corrugated pattern with spatial scales higher or within the order of one kiloparsec. The gas ...
متن کاملFIR and C + emissions of spiral galaxies disks . The example of NGC 6946
+ emissions of spiral galaxies disks. Abstract. We present numerical simulations of radiative transfer in the spiral galaxy NGC 6946. The interstel-lar medium is represented as a two phases medium, with molecular clouds and a smooth diffuse phase. The molecular gas distribution is calculated in a self-consistent way from the distribution of an ensemble of molecular clouds evolving in the gravit...
متن کاملMolecular gas in NGC 6946
We present imaging of molecular gas emission in the star-forming spiral galaxy NGC 6946. Our 12 CO(1-0) and 12 CO(3-2) images, made at 22 ′′ resolution with the IRAM 30-m and the Heinrich Hertz 10-m radio telescopes, are the most extensive observations of molecular gas in this galaxy and are among the most extensive observations of molecular gas in any spiral galaxy. The 12 CO(1-0) emission sho...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2010
ISSN: 0035-8711
DOI: 10.1111/j.1365-2966.2010.16887.x