Sensitivity and insensitivity of galaxy cluster surveys to new physics

Journal Article · Sat Mar 15 00:00:00 EDT 2008 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2008/03/006· OSTI ID:22137804

Erlich, Joshua; Glover, Brian ^[1]; Weiner, Neal ^[2]

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1. Particle Theory Group, Department of Physics, College of William and Mary, Williamsburg, VA 23187-8795 (United States)
2. Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, NY 10003 (United States)

We study the implications and limitations of galaxy cluster surveys for constraining models of particle physics and gravity beyond the Standard Model. Flux limited cluster counts probe the history of large scale structure formation in the universe, and as a result provide useful constraints on cosmological parameters. As a result of uncertainties in some aspects of cluster dynamics, cluster surveys are currently more useful for analyzing physics that would affect the formation of structure than physics that would modify the appearance of clusters. As an example we consider the {Lambda}CDM ({Lambda} cold dark matter) cosmology and dimming mechanisms, such as photon-axion mixing.

• OSTI ID: 22137804
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 03; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
AXIONS
COSMOLOGY
GALAXY CLUSTERS
GEOPHYSICAL SURVEYS
GRAVITATION
LIMITING VALUES
NONLUMINOUS MATTER
PHOTONS
SENSITIVITY
STANDARD MODEL
UNIVERSE