A measurement of Hubble’s Constant using Fast Radio Bursts

Author:

James C W1ORCID,Ghosh E M2,Prochaska J X34,Bannister K W5,Bhandari S5678ORCID,Day C K910,Deller A T10ORCID,Glowacki M1ORCID,Gordon A C11,Heintz K E12ORCID,Marnoch L51314,Ryder S D1314ORCID,Scott D R1,Shannon R M10,Tejos N15

Affiliation:

1. International Centre for Radio Astronomy Research, Curtin University , Bentley, WA 6102, Australia

2. Indian Institute of Science Education and Research Mohali, Knowledge City , Sector 81, SAS Nagar, Manauli PO 140306, India

3. Department of Astronomy and Astrophysics, University of California , Santa Cruz, CA 95064, USA

4. Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa 277-8583, Japan

5. CSIRO, Space and Astronomy , PO Box 76, Epping NSW 1710 Australia

6. ASTRON, Netherlands Institute for Radio Astronomy , Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, the Netherlands

7. Joint institute for VLBI ERIC , Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, the Netherlands

8. Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, NL-1098 XH, Amsterdam, the Netherlands

9. Department of Physics, McGill University , Montreal, Quebec H3A 2T8, Canada

10. Centre for Astrophysics and Supercomputing, Swinburne University of Technology , PO Box 218, Hawthorn, VIC 3122, Australia

11. Center for Interdisciplinary Exploration and Research in Astrophysics and Department of Physics and Astronomy, Northwestern University , 2145 Sheridan Road, Evanston, IL 60208-3112, USA

12. Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen , Jagtvej 128, DK-2100 Copenhagen ø, Denmark

13. School of Mathematical and Physical Sciences, Macquarie University , NSW 2109, Australia

14. Astronomy, Astrophysics and Astrophotonics Research Centre, Macquarie University , Sydney, NSW 2109, Australia

15. Instituto de Física, Pontificia Universidad Católica de Valparaíso , Casilla 4059, Valparaíso, Chile

Abstract

ABSTRACT We constrain the Hubble constant H0 using Fast Radio Burst (FRB) observations from the Australian Square Kilometre Array Pathfinder (ASKAP) and Murriyang (Parkes) radio telescopes. We use the redshift-dispersion measure (‘Macquart’) relationship, accounting for the intrinsic luminosity function, cosmological gas distribution, population evolution, host galaxy contributions to the dispersion measure (DMhost), and observational biases due to burst duration and telescope beamshape. Using an updated sample of 16 ASKAP FRBs detected by the Commensal Real-time ASKAP Fast Transients (CRAFT) Survey and localized to their host galaxies, and 60 unlocalized FRBs from Parkes and ASKAP, our best-fitting value of H0 is calculated to be $73_{-8}^{+12}$ km s−1 Mpc−1. Uncertainties in FRB energetics and DMhost produce larger uncertainties in the inferred value of H0 compared to previous FRB-based estimates. Using a prior on H0 covering the 67–74 km s−1 Mpc−1 range, we estimate a median ${\rm DM}_{\rm host}= 186_{-48}^{+59}\,{\rm pc \, cm^{-3}}$, exceeding previous estimates. We confirm that the FRB population evolves with redshift similarly to the star-formation rate. We use a Schechter luminosity function to constrain the maximum FRB energy to be log10Emax$=41.26_{-0.22}^{+0.27}$ erg assuming a characteristic FRB emission bandwidth of 1 GHz at 1.3 GHz, and the cumulative luminosity index to be $\gamma =-0.95_{-0.15}^{+0.18}$. We demonstrate with a sample of 100 mock FRBs that H0 can be measured with an uncertainty of ±2.5 km s−1 Mpc−1, demonstrating the potential for clarifying the Hubble tension with an upgraded ASKAP FRB search system. Last, we explore a range of sample and selection biases that affect FRB analyses.

Funder

FAST

FRB

NSF

Australian Research Council

NWO

NASA

NED

Jet Propulsion Laboratory

California Institute of Technology

National Aeronautics and Space Administration

Swinburne University of Technology

Swinburne

Government of Western Australia

CSIRO

Science and Industry Endowment Fund

European Southern Observatory

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3