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Galaxy Zoo: Observing Secular Evolution Through Bars

Abstract:

In this paper, we use the Galaxy Zoo 2 dataset to study the behavior of bars in disk galaxies as a function of specific star formation rate (SSFR), and bulge prominence. Our sample consists of 13,295 disk galaxies, with an overall (strong) bar fraction of $23.6\pm 0.4\%$, of which 1,154 barred galaxies also have bar length measurements. These samples are the largest ever used to study the role of bars in galaxy evolution. We find that the likelihood of a galaxy hosting a bar is anti-correlate...

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Publication status:
Published

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Publisher copy:
10.1088/0004-637X/779/2/162

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Journal:
ASTROPHYSICAL JOURNAL
Volume:
779
Issue:
2
Pages:
162-162
Publication date:
2013-10-10
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
Keywords:
Pubs id:
pubs:435929
UUID:
uuid:65932c2b-9e7e-445f-b2ba-779425efd0df
Local pid:
pubs:435929
Source identifiers:
435929
Deposit date:
2013-12-13

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