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Astrophysics and cosmology with a deci-hertz gravitational-wave detector: TianGO

Kuns, Kevin A. and Yu, Hang and Chen, Yanbei and Adhikari, Rana X. (2019) Astrophysics and cosmology with a deci-hertz gravitational-wave detector: TianGO. . (Unpublished)

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We present the astrophysical science case for a space-based, deci-Hz gravitational-wave (GW) detector. We particularly highlight an ability in inferring a source's sky location, both when combined with a network of ground-based detectors to form a long triangulation baseline, and by itself for the early warning of merger events. Such an accurate location measurement is the key for using GW signals as standard sirens for constraining the Hubble constant. This kind of detector also opens up the possibility of testing type Ia supernovae progenitor hypotheses by constraining the merger rates of white dwarf binaries with both super- and sub-Chandrasekhar masses separately. We will discuss other scientific outcomes that can be delivered, including the precise determination of black hole spins, the constraint of structure formation in the early Universe, and the search for intermediate-mass black holes.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
Yu, Hang0000-0002-7600-1582
Chen, Yanbei0000-0002-9730-9463
Adhikari, Rana X.0000-0002-5731-5076
Additional Information:We would like to thank Baoyi Chen, Curt Cutler, Michael Coughlin, Tom Callister, Carl Haster, Jamie Rollins, Evan Hall, Rory Smith, Salvatore Vitale, Will Farr, and Jan Harms for discussions. KAK and RXA were supported by Boeing (Award Number CT-BAGTA-1). HY is supported by the Sherman Fairchild Foundation. YC is supported by NSF grant PHY-1708213 and by the Simons Foundation (Award Number 568762).
Group:LIGO, TAPIR, Astronomy Department
Funding AgencyGrant Number
Boeing CorporationCT-BAGTA-1
Sherman Fairchild FoundationUNSPECIFIED
Simons Foundation568762
Record Number:CaltechAUTHORS:20200224-124524603
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101497
Deposited By: Tony Diaz
Deposited On:24 Feb 2020 20:49
Last Modified:02 Jun 2023 00:58

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