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Astrophysics and cosmology with a decihertz gravitational-wave detector: TianGO

Kuns, Kevin A. and Yu, Hang and Chen, Yanbei and Adhikari, Rana X. (2020) Astrophysics and cosmology with a decihertz gravitational-wave detector: TianGO. Physical Review D, 102 (4). Art. No. 043001. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20200803-143245194

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Abstract

We present the astrophysical science case for a space-based, decihertz gravitational-wave (GW) detector. We particularly highlight an ability to infer 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 to test 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 constraint of structure formation in the early Universe, the search for intermediate-mass black holes, the precise determination of black hole spins, the probe of binary systems’ orbital eccentricity evolution, and the detection of tertiary masses around merging binaries.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevD.102.043001DOIArticle
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.102.043001PublisherArticle
https://arxiv.org/abs/1908.06004arXivDiscussion Paper
ORCID:
AuthorORCID
Kuns, Kevin A.0000-0003-0630-3902
Yu, Hang0000-0002-6011-6190
Chen, Yanbei0000-0002-9730-9463
Adhikari, Rana X.0000-0002-5731-5076
Additional Information:© 2020 American Physical Society. Received 25 June 2020; accepted 23 July 2020; published 3 August 2020. We would like to thank Baoyi Chen, Curt Cutler, Michael Coughlin, Tom Callister, Carl Haster, Jameson Rollins, Evan Hall, Jim Fuller, Rory Smith, Salvatore Vitale, Will Farr, and Jan Harms for discussions. K. A. K. and R. X. A. were supported by Boeing (Award No. CT-BA-GTA-1). H. Y. is supported by the Sherman Fairchild Foundation. Y. C. is supported by NSF Grant No. PHY-1708213 and by the Simons Foundation (Award No. 568762).
Group:LIGO, TAPIR, Astronomy Department
Funders:
Funding AgencyGrant Number
Boeing Company Strategic Research and Development RelationshipCT-BA-GTA-1
Sherman Fairchild FoundationUNSPECIFIED
NSFPHY-1708213
Simons Foundation568762
Issue or Number:4
Record Number:CaltechAUTHORS:20200803-143245194
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200803-143245194
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104708
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:03 Aug 2020 21:47
Last Modified:03 Aug 2020 21:47

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