NDLI: Molecular gas and star formation in the centers of virgo spirals

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Molecular gas and star formation in the centers of virgo spirals

Content Provider	NASA Technical Reports Server (NTRS)
Author	Canzian, Blaise
Copyright Year	1990
Description	The CO and H alpha flux distributions for a sample of Virgo spirals were mapped out in an attempt to understand the coupling between gas dynamics and star formation in spiral galaxies. A broad range of morphological types were observed (types Sab through Scd) under the hypothesis that the gas dynamics is most influential in determining the overall appearance of a spiral galaxy. Only non-barred spirals were considered so that the well-studied but complicated properties of bars and their role in inducing star formation would not be a factor. All galaxies were chosen from the Virgo cluster to eliminate uncertainties due to distance errors. Since the dynamical seat of a spiral is at its center, it was expected that the dynamics of the central region would influence global properties of the rest of the disk. This could happen through the existence or absence of an inner Lindblad resonance (according to the degree of central concentration of mass) to modulate swing amplification of spiral waves, or the persistence of an oval distortion to initiate an instability which leads to spiral structure.
File Size	374916
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910004903
Archival Resource Key	ark:/13960/t2n63fk2d
Language	English
Publisher Date	1990-07-01
Access Restriction	Open
Subject Keyword	Astrophysics Errors Wave Amplification Star Formation Molecular Gases Virgo Galactic Cluster Gas Dynamics Morphology Distortion Resonance Spiral Galaxies Distance 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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