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  Astro2020 Science White Paper: Cosmology with a Space-Based Gravitational Wave Observatory

Caldwell, R., Amin, M., Hogan, C., Holley-Bockelmann, K., Holz, D., Jetzer, P., et al. (2019). Astro2020 Science White Paper: Cosmology with a Space-Based Gravitational Wave Observatory. Bulletin of the American Astronomical Society, 51(3): 67. Retrieved from http://arxiv.org/abs/1903.04657.

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 Creators:
Caldwell, Robert, Author
Amin, Mustafa, Author
Hogan, Craig, Author
Holley-Bockelmann, Kelly, Author
Holz, Daniel, Author
Jetzer, Philippe, Author
Kovetz, Ely, Author
Natarajan, Priya, Author
Shoemaker, David, Author
Smith, Tristan, Author
Tamanini, Nicola1, Author              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO,General Relativity and Quantum Cosmology, gr-qc
 Abstract: There are two big questions cosmologists would like to answer -- How does the Universe work, and what are its origin and destiny? A long wavelength gravitational wave detector -- with million km interferometer arms, achievable only from space -- gives a unique opportunity to address both of these questions. A sensitive, mHz frequency observatory could use the inspiral and merger of massive black hole binaries as standard sirens, extending our ability to characterize the expansion history of the Universe from the onset of dark energy-domination out to a redshift z ~ 10. A low-frequency detector, furthermore, offers the best chance for discovery of exotic gravitational wave sources, including a primordial stochastic background, that could reveal clues to the origin of our Universe.

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 Dates: 2019-03-112019
 Publication Status: Published online
 Pages: White Paper submitted on March 8, 2019 to Astro2020 (2020 Decadal Survey on Astronomy and Astrophysics)
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 Rev. Type: -
 Identifiers: arXiv: 1903.04657
URI: http://arxiv.org/abs/1903.04657
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Title: Bulletin of the American Astronomical Society
Source Genre: Journal
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Pages: - Volume / Issue: 51 (3) Sequence Number: 67 Start / End Page: - Identifier: -