Mildly suppressed star formation in central regions of MaNGA Seyfert galaxies

Authors
Bing, L 
Shi, Y 
Chen, Y 
Sánchez, SF 

Change log
Abstract

Negative feedback from accretion onto super-massive black holes (SMBHs), that is to remove gas and suppress star formation in galaxies, has been widely suggested. However, for Seyfert galaxies which harbor less active, moderately accreting SMBHs in the local universe, the feedback capability of their black hole activity is elusive. We present spatially-resolved Hα measurements to trace ongoing star formation in Seyfert galaxies and compare their specific star formation rate with a sample of star-forming galaxies whose global galaxy properties are controlled to be the same as the Seyferts. From the comparison we find that the star formation rates within central kpc of Seyfert galaxies are mildly suppressed as compared to the matched normal star forming galaxies. This suggests that the feedback of moderate SMBH accretion could, to some extent, regulate the ongoing star formation in these intermediate to late type galaxies under secular evolution.

Publication Date
2019
Online Publication Date
2018-10-03
Acceptance Date
2018-09-30
Keywords
galaxies: active, galaxies: evolution, galaxies: star formation, galaxies: Seyfert
Journal Title
Monthly Notices of the Royal Astronomical Society
Journal ISSN
0035-8711
1365-2966
Volume Title
482
Publisher
Oxford University Press (OUP)
Sponsorship
European Research Council (695671)
Science and Technology Facilities Council (ST/M001172/1)
STFC ERC