Non-circular motion evidence in the circumnuclear region of M100 (NGC 4321)
نویسندگان
چکیده
منابع مشابه
Kinematics in the Starbursting Circumnuclear Region of M100
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 velocity dispersion of the stars and the gas, which we present here. We have also produced maps of the total, [Oiii], and Hβ intensity. The gas velocity field show...
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We present ISOCAM images (1.5 ′′ px −1) in the LW2 (6.75 µm) and LW3 (15 µm) broad band filters of the circumnuclear starburst of NGC 4321 (M 100). A detailed comparison with the emission at other wavelengths (U , B, Hα, and CO) is also presented. The nature and intensity of the mid-infrared emission is shown to be remarkably different from one star forming region to the next. For instance, sta...
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Images of the central region of the almost edge-on Sc galaxy NGC 3079 in the J , H and K-bands and in the v = 1→0 S(1) line of molecular hydrogen are presented. The inner few kiloparsecs of NGC 3079 exhibit a large range of nearinfrared colours caused by varying contributions from direct and scattered stellar light, emission from hot dust and extinction gradients. Our results show that interpre...
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متن کاملOn the Relevance of the Tremaine-weinberg Method Applied to Hα Velocity Field.pattern Speeds Determination in M100 (ngc 4321)
The relevance of the Tremaine-Weinberg (TW) method is tested to measure the bar, spiral and inner structure pattern speeds using a gaseous velocity field. The TW method is applied to
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2007
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2007.12104.x