activity
20192026
most citedCosmology Intertwined II: The Hubble Constant Tension

540 citations · 1.7k across the 26 of their papers we have counts for

collaborators

26 papers

astro-ph.CO2026

SLSim: a strong lensing population simulation package

Narayan Khadka, Simon Birrer, Henry Best +45

Gravitational lensing offers unique insights into cosmology by bending light around massive objects. Strong gravitational lensing, in particular, produces magnified and often multi…

astro-ph.IM2025★ 2 cited

The Case for Space: Estimating Precise Time Delays from Ground- and Space-Based Observations of Lensed Supernovae with Glimpse

Erin E. Hayes, Suhail Dhawan, Stephen Thorp +2

The delay in arrival time of the multiple images of gravitationally lensed supernovae (glSNe) can be related to the present-day expansion rate of the universe, . Despite the…

astro-ph.HE2025

The impact of ultraviolet suppression on the rates and properties of strongly lensed Type IIn supernovae detected by LSST

Andrés I. Ponte Pérez, Graham P. Smith, Matt Nicholl +4

Upcoming wide-field time-domain surveys, such as the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) are expected to discover up to two orders of magnitude more…

astro-ph.CO2025★ 6 cited

Challenges and Opportunities for time-delay cosmography with multi-messenger gravitational lensing

Simon Birrer, Graham P. Smith, Anowar J. Shajib +2

Strong gravitational lensing of variable sources, such as quasars or supernovae, can be used to constrain cosmological parameters through a technique known as "time-delay cosmograp…

astro-ph.GA2025★ 3 cited

Microlensing of lensed supernovae Zwicky & iPTF16geu: constraints on the lens galaxy mass slope and dark compact object fraction

Nikki Arendse, Edvard Mörtsell, Luke Weisenbach +9

To date, only two strongly lensed type Ia supernovae (SNIa) have been discovered with an isolated galaxy acting as the lens: iPTF16geu and SN Zwicky. The observed image fluxes for…

astro-ph.HE2024★ 6 cited

LensWatch. II. Improved Photometry and Time-delay Constraints on the Strongly Lensed Type Ia Supernova 2022qmx ("SN Zwicky") with HST Template Observations

Conor Larison, Justin D. R. Pierel, Max J. B. Newman +34

Strongly lensed supernovae (SNe) are a rare class of transient that can offer tight cosmological constraints that are complementary to methods from other astronomical events. We pr…

astro-ph.CO2024★ 5 cited

Strong gravitational lenses from the Vera C. Rubin Observatory

Anowar J. Shajib, Graham P. Smith, Simon Birrer +6

Like many areas of astrophysics and cosmology, the Vera C. Rubin Observatory will be transformational for almost all the applications of strong lensing, thanks to the dramatic incr…

astro-ph.HE2024★ 3 cited

Detectability and Characterisation of Strongly Lensed Supernova Lightcurves in the Zwicky Transient Facility

A. Sagués Carracedo, A. Goobar, E. Mörtsell +7

The Zwicky Transient Facility (ZTF) was expected to detect more than one strong gravitationally-lensed supernova (glSN) per year, but only one event was identified in the first fou…

astro-ph.HE2024★ 2 cited

Candidate strongly lensed type Ia supernovae in the Zwicky Transient Facility archive

A. Townsend, J. Nordin, A. Sagués Carracedo +61

Gravitationally lensed type Ia supernovae (glSNe Ia) are unique astronomical tools that can be used to study cosmological parameters, distributions of dark matter, the astrophysics…

astro-ph.IM2024★ 6 cited

Detecting unresolved lensed SNe Ia in LSST using blended light curves

Satadru Bag, Simon Huber, Sherry H. Suyu +10

Strongly gravitationally lensed supernovae (LSNe) are promising probes for providing absolute distance measurements using gravitational-lens time delays. Spatially unresolved LSNe…

astro-ph.CO2024★ 51 cited

Lensed Type Ia Supernova "Encore" at z=2: The First Instance of Two Multiply-Imaged Supernovae in the Same Host Galaxy

J. D. R. Pierel, A. B. Newman, S. Dhawan +60

A bright (=24 mag), supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply-imaged as a result o…

astro-ph.CO2024★ 38 cited

JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78

J. D. R. Pierel, B. L. Frye, M. Pascale +60

Supernova (SN) H0pe is a gravitationally lensed, triply-imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Wel…

astro-ph.CO2023★ 7 cited

Detecting strongly-lensed type Ia supernovae with LSST

Nikki Arendse, Suhail Dhawan, Ana Sagués Carracedo +8

Strongly-lensed supernovae are rare and valuable probes of cosmology and astrophysics. Upcoming wide-field time-domain surveys, such as the Vera C. Rubin Observatory's Legacy Surve…

astro-ph.CO2023★ 5 cited

GausSN: Bayesian Time-Delay Estimation for Strongly Lensed Supernovae

Erin E. Hayes, Stephen Thorp, Kaisey S. Mandel +3

We present GausSN, a Bayesian semi-parametric Gaussian Process (GP) model for time-delay estimation with resolved systems of gravitationally lensed supernovae (glSNe). GausSN model…

astro-ph.CO2022★ 31 cited

LensWatch: I. Resolved HST Observations and Constraints on the Strongly-Lensed Type Ia Supernova 2022qmx ("SN Zwicky")

J. D. R. Pierel, N. Arendse, S. Ertl +39

Supernovae (SNe) that have been multiply-imaged by gravitational lensing are rare and powerful probes for cosmology. Each detection is an opportunity to develop the critical tools…

astro-ph.CO2022★ 52 cited

Uncovering a population of gravitational lens galaxies with magnified standard candle SN Zwicky

Ariel Goobar, Joel Johansson, Steve Schulze +35

Detecting gravitationally lensed supernovae is among the biggest challenges in astronomy. It involves a combination of two very rare phenomena: catching the transient signal of a s…

astro-ph.HE2022★ 1 cited

A fast rising tidal disruption event from a candidate intermediate mass black hole

C. R. Angus, V. F. Baldassare, B. Mockler +36

Massive black holes (BHs) at the centres of massive galaxies are ubiquitous. The population of BHs within dwarf galaxies, on the other hand, is evasive. Dwarf galaxies are thought…

astro-ph.CO2022★ 37 cited

Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies

Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200

In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…

astro-ph.HE2021★ 31 cited

A Carbon/Oxygen-dominated Atmosphere Days After Explosion for the "Super-Chandrasekhar" Type Ia SN 2020esm

Georgios Dimitriadis, Ryan J. Foley, Nikki Arendse +18

Seeing pristine material from the donor star in a Type Ia supernova (SN Ia) explosion can reveal the nature of the binary system. In this paper, we present photometric and spectros…

astro-ph.HE2020★ 106 cited

The Young Supernova Experiment: Survey Goals, Overview, and Operations

D. O. Jones, R. J. Foley, G. Narayan +68

Time domain science has undergone a revolution over the past decade, with tens of thousands of new supernovae (SNe) discovered each year. However, several observational domains, in…

astro-ph.CO2020★ 87 cited

Cosmology Intertwined IV: The Age of the Universe and its Curvature

Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +88

A precise measurement of the curvature of the Universe is of primeval importance for cosmology since it could not only confirm the paradigm of primordial inflation but also help in…

astro-ph.CO2020★ 454 cited

Cosmology Intertwined III: and

Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89

The standard Cold Dark Matter cosmological model provides a wonderful fit to current cosmological data, but a few tensions and anomalies became statistically significant with t…

astro-ph.CO2020★ 540 cited

Cosmology Intertwined II: The Hubble Constant Tension

Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +90

The current cosmological probes have provided a fantastic confirmation of the standard Cold Dark Matter cosmological model, that has been constrained with unprecedented accurac…

astro-ph.CO2020★ 83 cited

Cosmology Intertwined I: Perspectives for the Next Decade

Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89

The standard Cold Dark Matter cosmological model provides an amazing description of a wide range of astrophysical and astronomical data. However, there are a few big open quest…