NDLI: High resolution co images of seyfert galaxies

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High resolution co images of seyfert galaxies

Content Provider	NASA Technical Reports Server (NTRS)
Author	Wright, M. Blitz, L. Meixner, M. Puchalsky, R.
Copyright Year	1990
Description	The CO (J = 1-0) emission of three Seyfert galaxies, NGC 3227, NGC 7469, and NGC 5033 was imaged. The CO emission in NGC 3227 and NGC 7469 appears as compact structures centered on the active nuclei, containing substantial fractions of the single-dish flux. In NGC 3227, 10 percent of the CO flux detected by the interferometer is contained within the ionized narrow-line region. The unresolved molecular gas concentrations in the nucleus of NGC 3227 imply a CO mass of 65 million solar masses concentrated within a diameter less than 50 pc. The CO emission in NGC 5033 is not detected at this resolution, implying a CO structure size of 20 to 60 arcsec. Continuum emission at 2.7 mm is not detected in any of the three galaxies. In the center of NGC 7469, the H2 mass is comparable to the dynamical mass. Kinematic studies of the detected gas reveal a rotational motion of the gas in NGC 3227 and NGC 7469, allowing identification of the gas in NGC 7469 with a nuclear starburst. These data are consistent with the idea that interactions between galaxies cause gas to concentrate in their nuclei thereby feeding starburst and Seyfert activity.
File Size	230888
Page Count	3
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910004808
Archival Resource Key	ark:/13960/t6b32s109
Language	English
Publisher Date	1990-07-01
Access Restriction	Open
Subject Keyword	Astrophysics Interacting Galaxies High Resolution Molecular Gases Hydrogen Starburst Galaxies Interferometers Gas Composition Galactic Structure Seyfert Galaxies Concentration Composition Active Galactic Nuclei Stellar Mass Continuums Kinematics Carbon Monoxide Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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