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The effect of minor and major mergers on the evolution of low-excitation radio galaxies

Abstract:

We use deep, μ r ≲ 28 mag arcsec−2, r-band imaging from the Dark Energy Camera Legacy Survey to search for past, or ongoing, merger activity in a sample of 282 low-excitation radio galaxies (LERGs) at z < 0.07. Our principal aim is to assess the the role of mergers in the evolution of LERGs. Exploiting the imaging depth, we classify tidal remnants around galaxies as both minor and major morphological disturbances for our LERG sample and 1622 control galaxies matched in redshift, stellar ma...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.3847/1538-4357/ab203f

Authors


Publisher:
American Astronomical Society
Journal:
Astrophysical Journal More from this journal
Volume:
878
Issue:
2
Article number:
88
Publication date:
2019-06-18
Acceptance date:
2019-04-30
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
Keywords:
Pubs id:
pubs:995406
UUID:
uuid:fbdb831e-067e-4556-9760-7e704b199d93
Local pid:
pubs:995406
Source identifiers:
995406
Deposit date:
2019-05-16

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