The Hubble Constant from Strongly Lensed Supernovae with Standardizable Magnifications
Abstract
The dominant uncertainty in the current measurement of the Hubble constant (H0) with strong gravitational lensing time delays is attributed to uncertainties in the mass profiles of the main deflector galaxies. Strongly lensed supernovae (glSNe) can provide, in addition to measurable time delays, lensing magnification constraints when knowledge about the unlensed apparent brightness of the explosion is imposed. We present a hierarchical Bayesian framework to combine a data set of SNe that are not strongly lensed and a data set of strongly lensed SNe with measured time delays. We jointly constrain (i) H0 using the time delays as an absolute distance indicator, (ii) the lens model profiles using the magnification ratio of lensed and unlensed fluxes on the population level, and (iii) the unlensed apparent magnitude distribution of the SN population and the redshift–luminosity relation of the relative expansion history of the universe. We apply our joint inference framework on a future expected data set of glSNe and forecast that a sample of 144 glSNe of Type Ia with well-measured time series and imaging data will measure H0 to 1.5%. We discuss strategies to mitigate systematics associated with using absolute flux measurements of glSNe to constrain the mass density profiles.more »
- Authors:
-
[1];
[2];
[3]
- Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Univ. of Cambridge (United Kingdom)
- Univ. of Chicago, IL (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Org.:
- KIPAC
- OSTI Identifier:
- 1838661
- Alternate Identifier(s):
- OSTI ID: 1854150; OSTI ID: 1864265
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal
- Additional Journal Information:
- Journal Volume: 924; Journal Issue: 1; Journal ID: ISSN 0004-637X
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; Dark Energy; Hubble constant; supernovae; dark energy
Citation Formats
Birrer, Simon, Dhawan, Suhail, and Shajib, Anowar J. The Hubble Constant from Strongly Lensed Supernovae with Standardizable Magnifications. United States: N. p., 2022.
Web. doi:10.3847/1538-4357/ac323a.
Birrer, Simon, Dhawan, Suhail, & Shajib, Anowar J. The Hubble Constant from Strongly Lensed Supernovae with Standardizable Magnifications. United States. https://doi.org/10.3847/1538-4357/ac323a
Birrer, Simon, Dhawan, Suhail, and Shajib, Anowar J. Tue .
"The Hubble Constant from Strongly Lensed Supernovae with Standardizable Magnifications". United States. https://doi.org/10.3847/1538-4357/ac323a. https://www.osti.gov/servlets/purl/1838661.
@article{osti_1838661,
title = {The Hubble Constant from Strongly Lensed Supernovae with Standardizable Magnifications},
author = {Birrer, Simon and Dhawan, Suhail and Shajib, Anowar J.},
abstractNote = {The dominant uncertainty in the current measurement of the Hubble constant (H0) with strong gravitational lensing time delays is attributed to uncertainties in the mass profiles of the main deflector galaxies. Strongly lensed supernovae (glSNe) can provide, in addition to measurable time delays, lensing magnification constraints when knowledge about the unlensed apparent brightness of the explosion is imposed. We present a hierarchical Bayesian framework to combine a data set of SNe that are not strongly lensed and a data set of strongly lensed SNe with measured time delays. We jointly constrain (i) H0 using the time delays as an absolute distance indicator, (ii) the lens model profiles using the magnification ratio of lensed and unlensed fluxes on the population level, and (iii) the unlensed apparent magnitude distribution of the SN population and the redshift–luminosity relation of the relative expansion history of the universe. We apply our joint inference framework on a future expected data set of glSNe and forecast that a sample of 144 glSNe of Type Ia with well-measured time series and imaging data will measure H0 to 1.5%. We discuss strategies to mitigate systematics associated with using absolute flux measurements of glSNe to constrain the mass density profiles. Using the magnification of SN images is a promising and complementary alternative to using stellar kinematics. Future surveys, such as the Rubin and Roman observatories, will be able to discover the necessary number of glSNe, and with additional follow-up observations, this methodology will provide precise constraints on mass profiles and H0.},
doi = {10.3847/1538-4357/ac323a},
journal = {The Astrophysical Journal},
number = 1,
volume = 924,
place = {United States},
year = {Tue Jan 04 00:00:00 EST 2022},
month = {Tue Jan 04 00:00:00 EST 2022}
}
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