scholarly journals Star formation scales and efficiency in Galactic spiral arms

2015 ◽  
Vol 452 (1) ◽  
pp. 289-300 ◽  
Author(s):  
D. J. Eden ◽  
T. J. T. Moore ◽  
J. S. Urquhart ◽  
D. Elia ◽  
R. Plume ◽  
...  
Keyword(s):  
Star Formation ◽  
Spiral Arms ◽  
Galactic Spiral

Star formation in galactic spiral arms

Nature ◽  
1982 ◽  
Vol 297 (5863) ◽  
pp. 179-180
Author(s):  
Gerard Gilmore
Keyword(s):  
Star Formation ◽  
Spiral Arms ◽  
Galactic Spiral

scholarly journals Star formation in Galactic spiral arms and the interarm regions

2013 ◽  
Vol 431 (2) ◽  
pp. 1587-1595 ◽  
Author(s):  
D. J. Eden ◽  
T. J. T. Moore ◽  
L. K. Morgan ◽  
M. A. Thompson ◽  
J. S. Urquhart
Keyword(s):  
Star Formation ◽  
Spiral Arms ◽  
Galactic Spiral

scholarly journals The Galactic Ecosystem

2004 ◽  
Vol 213 ◽  
pp. 123-126
Author(s):  
Michael Burton
Keyword(s):  
Star Formation ◽  
Crucial Role ◽  
Self Regulation ◽  
Spiral Arms ◽  
Carbon Abundance

We discuss how the process of star formation across the spiral arms of galaxies functions as an ecosystem. The carbon abundance plays a crucial role in both its self-regulation and evolution.

scholarly journals [CII] emission and star formation in the spiral arms of M 31

2006 ◽  
Vol 453 (1) ◽  
pp. 77-82 ◽  
Author(s):  
N. J. Rodriguez-Fernandez ◽  
J. Braine ◽  
N. Brouillet ◽  
F. Combes
Keyword(s):  
Star Formation ◽  
Spiral Arms ◽  
M 31

scholarly journals Cloud and Star Formation in Spiral Arms

2014 ◽  
pp. 147-156
Author(s):  
Clare Dobbs ◽  
Alex Pettitt
Keyword(s):  
Star Formation ◽  
Spiral Arms

scholarly journals Large Scale Star Formation: Density Waves, Superassociations and Propagation

1987 ◽  
Vol 115 ◽  
pp. 457-481 ◽  
Author(s):  
Bruce G. Elmegreen
Keyword(s):  
Star Formation ◽  
Large Scale ◽  
Density Waves ◽  
Spiral Arms ◽  
Gravitational Instabilities ◽  
Significant Difference ◽  
Star Formation In Galaxies ◽  
The Difference ◽  
The Waves

The hypothesis that density waves trigger star formation is critically examined. Much of the former evidence in favor of the hypothesis is shown to be inconsistent with modern observations. A comparison between galaxies with and without density waves reveals no significant difference in their star formation rates. A new role for density waves in the context of star formation might be based on four principles: 1. density waves are intrinsically strong, 2. the gas is compressed more than the stars in the wave, 3. star formation follows the gas, with no preferential trigger related to the wave itself, and 4. regions of star formation are larger in the spiral arms than they are between the arms. This new role for density waves is primarily one of organization: the waves place most of the gas in the arms, so most of the star formation is in the arms too. The waves also promote the coagulation of small clouds into large cloud complexes, or superclouds, by what appears to be a combination of collisional agglomeration and large-scale gravitational instabilities. Special regions where density waves do trigger a true excess of star formation are discussed, and possible reasons for the difference between these triggering waves and the more common, organizing, waves are mentioned. Other aspects of large-scale star formation, such as the occurrence of kiloparsec-size regions of activity and kiloparsec-range propagation, are illustrated with numerous examples. The importance of these largest scales to the overall mechanism of star formation in galaxies is emphasized.

scholarly journals Supplying Gas for Nuclear Star Formation: The Central Molecular Spiral of IC 342

1994 ◽  
Vol 140 ◽  
pp. 339-340 ◽  
Author(s):  
D. A. Levine ◽  
J. L. Turner ◽  
R. L. Hurt
Keyword(s):  
Star Formation ◽  
Spiral Galaxy ◽  
Density Wave ◽  
Wave Pattern ◽  
Molecular Gas ◽  
Spiral Arms

IC 342 is a large nearby (1.8Mpc) spiral galaxy undergoing a moderate nuclear starburst. Previous maps of the inner arc minute in 13CO (1→0) show that the nuclear molecular gas forms spiral arms approximately 500 pc in extent in a density wave pattern (Turner & Hurt, 1992).

Star formation in the spiral arms of NGC 4321. I - CO observations

1992 ◽  
Vol 103 ◽  
pp. 429 ◽  
Author(s):  
J. Cepa ◽  
J. E. Beckman ◽  
J. H. Knapen ◽  
N. Nakai ◽  
N. Kuno
Keyword(s):  
Star Formation ◽  
Spiral Arms ◽  
Co Observations

Efficient star formation in the spiral arms of M51

1990 ◽  
Vol 356 ◽  
pp. 135 ◽  
Author(s):  
Steven D. Lord ◽  
Judith S. Young
Keyword(s):  
Star Formation ◽  
Spiral Arms
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