H[alpha]3: an H[alpha] imaging survey of HI selected galaxies from ALFALFA: VI. The role of bars in quenching star formation from z = 3 to the present epoch
A growing body of evidence indicates that the star formation rate per unit stellar mass (sSFR) decreases with increasing mass in normal main-sequence star-forming galaxies. Many processes have been advocated as being responsible for this trend, e.g., feedback from active galactic nuclei (AGN5), and...
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creator | Gavazzi, G Consolandi, G Dotti, M Fanali, R Fossati, M Fumagalli, M Viscardi, E Savorgnan, G Boselli, A Gutierrez, L Toledo, H Hernandez Giovanelli, R Haynes, M P |
description | A growing body of evidence indicates that the star formation rate per unit stellar mass (sSFR) decreases with increasing mass in normal main-sequence star-forming galaxies. Many processes have been advocated as being responsible for this trend, e.g., feedback from active galactic nuclei (AGN5), and the formation of classical bulges. In order to improve our insight into the mechanisms regulating the star formation in normal star-forming galaxies across cosmic epochs, we determine a refined star formation versus stellar mass relation in the local Universe. To this end we use the H[alpha] narrow-band imaging follow-up survey (H[alpha]3) of field galaxies selected from the HI Arecibo Legacy Fast ALFA Survey (ALFALFA) in the Coma and Local super-clusters. Our study highlights how the formation of strong bars in massive galaxies is an important mechanism in regulating the redshift evolution of the sSFR for field main-sequence galaxies. |
doi_str_mv | 10.1051/0004-6361/201425351 |
format | Article |
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subjects | Alfalfa Bars Feedback Formations Galaxies Imaging Star formation Stellar mass |
title | H[alpha]3: an H[alpha] imaging survey of HI selected galaxies from ALFALFA: VI. The role of bars in quenching star formation from z = 3 to the present epoch |
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