Projected Cosmological Constraints from Strongly Lensed Supernovae with the Roman Space Telescope

Abstract

One of the primary mission objectives for the Roman Space Telescope is to investigate the nature of dark energy with a variety of methods. Observations of Type Ia supernovae (SNIa) will be one of the principal anchors of the Roman cosmology program, through traditional luminosity distance measurements. This SNIa cosmology program can provide another valuable cosmological probe, without altering the mission strategy: time delay cosmography with gravitationally lensed SN. In this work, we forecast lensed SN cosmology constraints with the Roman Space Telescope, while providing useful tools for future work. Using anticipated characteristics of the Roman SNIa survey, we have constructed mock catalogs of expected resolved lensing systems, as well as strongly lensed Type Ia and core-collapse (CC) SN light curves, including microlensing effects. We predict Roman will find ~11 lensed SNIa and ~20 CCSN, dependent on the survey strategy. Next, we estimate the time delay precision obtainable with Roman (Ia: ~2 days, CC: ~3 days), and use a Fisher matrix analysis to derive projected constraints on $H_0$,${\Omega }_m$, and the dark energy Equation of State (EOS), $w$, for each SNIa survey strategy. A strategy optimized for high-redshift SNIa discovery is preferred when considering the constraints possible from both SNIa and lensed SN cosmology, also delivering ~1.5 times more lensed SN than other proposed survey strategies.

Accepted Version (ApJ, 1/4/21)

References in corpus (17)

• Improved Distances to Type Ia Supernovae with Multicolor Light Curve Shapes: MLCS2k2
• H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: $H_0$ to 3.8% precision from strong lensing in a flat $\Lambda$CDM model
• Characterizing the V-band light-curves of hydrogen-rich type II supernovae
• TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles
• Time Dependent Monte Carlo Radiative Transfer Calculations For 3-Dimensional Supernova Spectra, Lightcurves, and Polarization
• Multiple Images of a Highly Magnified Supernova Formed by an Early-Type Cluster Galaxy Lens
• Correcting Type Ia Supernova Distances for Selection Biases and Contamination in Photometrically Identified Samples
• Towards Characterization of the Type IIP Supernova Progenitor Population: a Statistical Sample of Light Curves from Pan-STARRS1
• Results from the Supernova Photometric Classification Challenge
• Detection of the Gravitational Lens Magnifying a Type Ia Supernova
• First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: The Effect of Host Galaxy Properties on Supernova Luminosity
• Over-constrained Gravitational Lens Models and the Hubble Constant
• Microlensing of Lensed Supernovae
• Cosmological Constraints from Gravitational Lens Time Delays
• Turning Gravitationally Lensed Supernovae into Cosmological Probes
• GERLUMPH Data Release 2: 2.5 billion simulated microlensing light curves
• Microlensing flux ratio predictions for Euclid

Cited by in corpus (25)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Lensed Type Ia Supernova "Encore" at z=2: The First Instance of Two Multiply-Imaged Supernovae in the Same Host Galaxy
• Strong gravitational lensing and microlensing of supernovae
• Improved time-delay lens modelling and $H_0$ inference with transient sources
• The Hubble constant from strongly lensed supernovae with standardizable magnifications
• Prospects for measuring the Hubble constant and dark energy using gravitational-wave dark sirens with neutron star tidal deformation
• JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements
• LensWatch: I. Resolved HST Observations and Constraints on the Strongly-Lensed Type Ia Supernova 2022qmx ("SN Zwicky")
• Be It Unresolved: Measuring Time Delays from Lensed Supernovae
• Cosmic rate of type IIn supernovae and its evolution with redshift
• Detectability of "Merger-nova" emission from a long-lived magnetar in short gamma-ray bursts
• A targeted search for strongly lensed supernovae with the Las Cumbres Observatory
• Out of One, Many: Distinguishing Time Delays from Lensed Supernovae
• HOLISMOKES -- XII. Time-delay Measurements of Strongly Lensed Type Ia Supernovae using a Long Short-Term Memory Network
• LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations
• Forecast of strongly lensed supernovae rates in the China Space Station Telescope surveys
• Deep Learning Unresolved Lensed Lightcurves
• GausSN: Bayesian Time-Delay Estimation for Strongly Lensed Supernovae
• HOLISMOKES -- XIV. Time-delay and differential dust extinction determination with lensed type II supernova color curves
• Testing Lens Models of PLCK G165.7+67.0 Using Lensed SN H0pe
• Probing stellar-mass primordial black holes with type Ia supernova microlensing
• Detection of Unresolved Strongly Lensed Supernovae with 7-Dimensional Telescope
• The impact of ultraviolet suppression on the rates and properties of strongly lensed Type IIn supernovae detected by LSST