Is a local bar a good place to find a companion? The near infrared morphology of Maffei 2

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Companion Stars, Maffei Galaxies, Molecular Gases, Morphology, Near Infrared Radiation, Neutral Gases, Spiral Galaxies, Star Formation, Extinction, Infrared Radiation, Interferometry, Magnitude, Radii

Scientific paper

Maffei 2 is one of the closest large spiral galaxies lying just beyond the Local Group. It would probably be one of the most heavily studied galaxies in the sky were it not for the approximately 5 magnitudes of visual extinction resulting from its position behind the Galactic plane. It is the site of a burst of nuclear star formation indicated by strong infrared and radii continuum emission. Interferometric maps of CO-12 and CO-13 emission indicate that star formation is associated with a barlike structure consisting of arms of molecular gas that extend from within approximately 50 pc of the dynamical center out to a radius of at least 500 pc. HI maps have shown the galaxy to have an angular extent of approximately 15 feet and a neutral gas mass typical of a large spiral galaxy.

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