TY - JOUR

T1 - Probing Cosmology with Baryon Acoustic Oscillations Using Gravitational Waves

AU - Kumar, Sumit

N1 - Funding Information: We acknowledge the Max Planck Gesellschaft. We thank the computing team from AEI Hannover for their significant technical support. S.K. thanks Xisco Jiménez Forteza and Pierre Mourier for going through the manuscript and providing useful comments. S.K. also thanks Aditya Vijaykumar and Anjan Sen for useful discussions. S.K. thanks the anonymous referee for critical inputs and improving the manuscript. ATLAS cluster at AEI Hannover was used to perform all the computational work done in this study.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - The third-generation (3G) gravitational wave (GW) detectors such as the Einstein Telescope or Cosmic Explorer are expected to play an important role in cosmology. With the help of 3G detectors, we will be able to probe large-scale structure features such as baryon acoustic oscillations (BAO), galaxy bias, etc. We explore the possibility to do precision cosmology, with the 3G GW detectors by measuring the angular BAO scale using localization volumes of compact binary merger events. Through simulations, we show that with a 3G detector network, by probing the angular BAO scale using purely GW observations, we can constrain the Hubble constant for the standard model of cosmology (ΛCDM) with 90% credible regions as H 0 = 59.4 − 17.7 + 33.9 km s − 1 Mpc − 1 . When combined with BAO measurements from galaxy surveys, we show that it can be used to constrain various models of cosmology such as parameterized models for dark energy equations of state. We also show how cosmological constraints using BAO measurements from GW observations in the 3G era will complement the same from spectroscopic surveys.

AB - The third-generation (3G) gravitational wave (GW) detectors such as the Einstein Telescope or Cosmic Explorer are expected to play an important role in cosmology. With the help of 3G detectors, we will be able to probe large-scale structure features such as baryon acoustic oscillations (BAO), galaxy bias, etc. We explore the possibility to do precision cosmology, with the 3G GW detectors by measuring the angular BAO scale using localization volumes of compact binary merger events. Through simulations, we show that with a 3G detector network, by probing the angular BAO scale using purely GW observations, we can constrain the Hubble constant for the standard model of cosmology (ΛCDM) with 90% credible regions as H 0 = 59.4 − 17.7 + 33.9 km s − 1 Mpc − 1 . When combined with BAO measurements from galaxy surveys, we show that it can be used to constrain various models of cosmology such as parameterized models for dark energy equations of state. We also show how cosmological constraints using BAO measurements from GW observations in the 3G era will complement the same from spectroscopic surveys.

UR - http://www.scopus.com/inward/record.url?scp=85180077217&partnerID=8YFLogxK

U2 - 10.48550/arXiv.2203.04273

DO - 10.48550/arXiv.2203.04273

M3 - Article

AN - SCOPUS:85180077217

VL - 959

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 35

ER -