Arm and Interarm Star Formation in Spiral Galaxies

Details Arm and Interarm Star Formation in Spiral Galaxies Arm and Interarm Star Formation in Spiral Galaxies

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ap%26ss.276..517s&link_type=abstract

Astrophysics and Space Science, v. 276, Issue 2/4, p. 517-522 (2001).

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We present an outline of our study of the effects of star formation on the different components of the interstellar medium in the discs of spiral galaxies, both globally and as a function of arm and interarm environment. We are in the process of obtaining images of 57 spiral galaxies at low inclinations, and analysing them to study the distribution of recent massive star formation, old stars, young stars, gas and dust. We will dissect the images into arm and interarm regions and compare and contrast the morphology and scale lengths within these regions in H_α, HI, the near infrared, optical and (where available) CO. Modelling will show how the scale lengths are affected by star formation, how this differs between arms and interarms, and whether the Schmidt Law varies from the global values in the arm and interarm regions.

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