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Resolving the disc-halo degeneracy II: NGC 6946

Abstract:

The mass-to-light ratio (M/L) is a key parameter in decomposing galactic rotation curves into contributions from the baryonic components and the dark halo of a galaxy. One direct observational method to determine the disc M/L is by calculating the surface mass density of the disc from the stellar vertical velocity dispersion and the scale height of the disc. Usually, the scale height is obtained from near-IR studies of edge-on galaxies and pertains to the older, kinematically hotter stars in ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1093/mnras/staa3106

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Institution:
University of Oxford
Role:
Author
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Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
500
Issue:
30 July 2020
Pages:
3579–3593
Publication date:
2020-10-09
Acceptance date:
2020-10-06
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Language:
English
Keywords:
Pubs id:
1140125
Local pid:
pubs:1140125
Deposit date:
2020-10-29

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