English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

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

MPS-Authors
/persons/resource/persons214785

Tamanini,  Nicola
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)

1903.04657.pdf
(Preprint), 331KB

067_caldwell.pdf
(Publisher version), 283KB

Supplementary Material (public)
There is no public supplementary material available
Citation

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.


Cite as: http://hdl.handle.net/21.11116/0000-0003-64F0-D
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.