activity
20162026
most citedReverberation Mapping of Optical Emission Lines in Five Active Galaxies

112 citations · 289 across the 10 of their papers we have counts for

collaborators

11 papers

astro-ph.CO2026

JWST lensed quasar dark matter survey V: Hints of self-interacting dark matter from 29 quadruply imaged quasars

D. Gilman, A. M. Nierenberg, J. Gurian +21

Theories of self-interacting dark matter (SIDM) predict the eventual core collapse of dark matter halos, a process that transforms these structures into extremely efficient gravita…

astro-ph.CO2025

JWST Lensed Quasar Dark Matter Survey III: Dark Matter Sensitive Flux Ratios and Warm Dark Matter Constraint from the Full Sample

R. E. Keeley, A. M. Nierenberg, D. Gilman +24

We present the full sample of measurements of the warm dust emission of 31 strongly-lensed, multiply imaged quasars, observed with JWST MIRI multiband imaging, which we use to cons…

astro-ph.CO2025

JWST lensed quasar dark matter survey IV: Stringent warm dark matter constraints from the joint reconstruction of extended lensed arcs and quasar flux ratios

D. Gilman, A. M. Nierenberg, T. Treu +23

We present a measurement of the free-streaming length of dark matter (DM) and subhalo abundance around 28 quadruple image strong lenses using observations from JWST MIRI presented…

astro-ph.CO2025★ 4 cited

TDCOSMO: XX. WFI2033--4723, the First Quadruply-Imaged Quasar Modeled with JWST Imaging

D. M. Williams, T. Treu, S. Birrer +5

Gravitational time delays offer unique, independent measurements of the Hubble constant, . Precise measurements of stand as one of the most pressing challenges in modern…

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.GA2024★ 14 cited

The GLASS-JWST Early Release Science Program. IV. Data release of 263 spectra from 245 unique sources

S. Mascia, G. Roberts-Borsani, T. Treu +24

We release fully reduced spectra obtained with NIRSpec onboard JWST as part of the GLASS-JWST Early Release Science Program and a follow-up Director's Discretionary Time program 27…

astro-ph.HE2024★ 1 cited

Spectroscopic analysis of the strongly lensed SN~Encore: Constraints on cosmic evolution of Type Ia supernovae

S. Dhawan, J. D. R. Pierel, M. Gu +16

Strong gravitational lensing magnifies the light from a background source, allowing us to study these sources in detail. Here, we study the spectra of a lensed Type Ia s…

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.CO2017★ 63 cited

DES meets Gaia: discovery of strongly lensed quasars from a multiplet search

A. Agnello, H. Lin, N. Kuropatkin +69

We report the discovery, spectroscopic confirmation and first lens models of the first two, strongly lensed quasars from a combined search in WISE and Gaia over the DES footprint.…

astro-ph.GA2016★ 112 cited

Reverberation Mapping of Optical Emission Lines in Five Active Galaxies

M. M. Fausnaugh, C. J. Grier, M. C. Bentz +68

We present the first results from an optical reverberation mapping campaign executed in 2014, targeting the active galactic nuclei (AGN) MCG+08-11-011, NGC 2617, NGC 4051, 3C 382,…