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Session:
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Frontiers of Astronomy
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Paper Type:
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Invited
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Title:
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Tension in the Cosmological Distance Scale
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Meeting:
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2019 Summer Meeting: Provo, UT |
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Location:
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N/A |
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Date:
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Time:
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10:00AM
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Author:
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Joseph Jensen, Utah Valley University
8018638666, jjensen@uvu.edu
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Co-Author(s):
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None
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Abstract:
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Observational astronomers continue to improve the precision of their measurements of the local (i.e., current) expansion rate of the Universe, but the more precise those measurements get, the more they disagree with the model-based predictions derived from the properties of the early Universe. What started out as “tension” with the standard cold dark matter + dark energy model is looking more and more like disagreement. What could be wrong? Are there systematic errors in the distance ladder? Are there problems with the cosmological models? If the model assumptions are wrong there could be exciting new physics just around the corner.
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Footnotes:
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Kevin Lee
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Presentation:
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Jensen-AAPT-July2019.pdf
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