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Stellar feedback and the energy budget of late-type Galaxies: Missing baryons and core creation

Abstract:

In a ΛCDM cosmology, galaxy formation is a globally inefficient process: it is often the case that far fewer baryons are observed in galaxy discs than expected from the cosmic baryon fraction. The location of these ‘missing baryons’ is unclear. By fitting halo profiles to the rotation curves of galaxies in the SPARC data set, we measure the ‘missing baryon’ mass for individual late-type systems. Assuming that haloes initially accrete the cosmological baryon fraction, we show that the maximum ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1093/mnras/sty2129

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Astrophysics
Oxford college:
Brasenose College
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Astrophysics
Role:
Author
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Funding agency for:
Katz, HB
Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
480
Issue:
4
Pages:
4287–4301
Publication date:
2018-08-06
Acceptance date:
2018-08-02
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Pubs id:
pubs:943627
URN:
uri:e5c62ef6-b303-4988-8e28-2c9f5015e824
UUID:
uuid:e5c62ef6-b303-4988-8e28-2c9f5015e824
Local pid:
pubs:943627

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