Star formation rates and the kinematics of gas in the spiral arms of NGC 628

Abstract

Relations between star formation rates along the spiral arms and the velocities of gas inflow into the arms in grand-design galaxy NGC 628 were studied. We found that the radial distribution of average star formation rate in individual star formation regions in regular spiral arms correlates with the velocity of gas inflow into the spiral arms. Both distributions have maxima at a galactocentric distance of 4.5-5 kpc. There are no correlations between the radial distributions of average star formation rate in star formation regions in spiral arms and outside spiral arms in the main disc. We also did not find a correlation between the radial distribution of average star formation rate in star formation regions in spiral arms and HI column density.

8 pages, 6 figures, 1 table. Accepted for publication in Astronomische Nachrichten

References in corpus (4)

• Stellar Population and Kinematic Profiles in Spiral Bulges & Disks: Population Synthesis of Integrated Spectra
• The Arecibo Galaxy Environment Survey: Precursor Observations of the NGC 628 group
• Evolution of Structure in Late-type Spiral Galaxies I: Ionized Gas Kinematics in NGC 628
• Oxygen and nitrogen abundances of HII regions in six spiral galaxies

Cited by in corpus (1)

• Regular chains of star formation regions in spiral arms and rings of disk galaxies