منابع مشابه
Observations of Ammonia in External Galaxies . II . Maffei 2
The ammonia (J ,K) = (1,1), (2,2), (3,3), and (4,4) transitions at 23.7 – 24.1 GHz region were searched for in a nearby galaxy Maffei 2 to study relation between molecular abundances and physical conditions in galaxies. The (1,1), (2,2), and (3,3) emission lines were clearly detected. The rotational temperatures and ortho-to-para abundance ratios obtained are about 30 K and about 2.6, respectiv...
متن کاملNuclear Bar Catalyzed Star Formation: Co, Co, and Molecular Gas Properties in the Nucleus of Maffei 2
We present 300 resolution maps of CO, its isotopologues, and HCN from in the center of Maffei 2. The J 1⁄4 1Y0 rotational lines of CO, CO, CO and HCN, and the J 1⁄4 2Y1 lines of CO and CO were observed with the Owens Valley Radio Observatory (OVRO) and Berkeley-Illinois-Maryland Association (BIMA) arrays. The lower opacity CO isotopologues give more reliable constraints on H2 column densities a...
متن کاملCI and CO in the nearby spiral galaxies IC 342 and Maffei 2
We present J=2–1, J=3–2, J=4–3 CO and 492 GHz [CI] maps as well as J=2–1 and J=3–2 CO measurements of the central regions in the nearby Sc galaxies IC 342 and Maffei 2. In both galaxies. the distribution of CO and [CI] is strongly concentrated towards the center. These centers harbour modest starbursts. Both galaxies have nearly identical CO transitional ratios but the relative intensities of t...
متن کاملCentral Spiral Structure of Molecular Gas in Maffei 2
Distribution and kinematics of molecular gas in the central region of the barred spiral galaxy Maffei 2 were investigated using a data set of CO(1–0), CO(2–1), CS(2–1) lines and 103 GHz continuum. We found that the offset ridges along the kpc-scale bar continue to the central spiral structure embedded in the weak oval structure which is regarded as x2 orbit in the bar potential. The spiral stru...
متن کاملThe Intrinsic Color Index of Maffei No . 2
Integrated color indices corrected for galactic absorption, internal absorption, and redshift have been given for a large number of galaxies by de Vaucouleurs and de Vaucouleurs (1964). These indices may be compared with the maximum rotational velocities of galaxies that are listed in compilations by Brosche (1967, 1971). Such a comparison shows that there is a strong correlation between the in...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1985
ISSN: 0074-1809
DOI: 10.1017/s0074180900242411