activity
20202026
most citedObservations of edge-on protoplanetary disks with ALMA I. Results from continuum data

187 citations · 452 across the 17 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

6 papers · 1 filter

astro-ph.CO2026

SN 2022riv in RX J2129: Discovery, Spectroscopic Classification, and Microlensing of a Strongly Lensed Type Ia Supernova from JWST and HST Observations

Birendra Dhanasingham, Patrick L. Kelly, Wenlei Chen +27

The multiply imaged SN 2022riv was discovered through a search of galaxy cluster fields as part of a Hubble Space Telescope (HST) SNAP program to find highly magnified stars. The s…

astro-ph.CO2025★ 1 cited

Transient star B/R ratio and star formation in lensed galaxies

Sung Kei Li, Jose M. Palencia, Jose M. Diego +8

The extreme magnification from galaxy clusters and microlenses therein allows the detection of individual, luminous stars in lensed galaxies as transient events, and hence provides…

astro-ph.CO2025★ 6 cited

Microlensing at Cosmological Distances: Event Rate Predictions in the Warhol Arc of MACS 0416

J. M. Palencia, J. M. Diego, L. Dai +13

Highly magnified stars ( 100) are now outinely identified as transient events at cosmological distances thanks to microlensing by intra-cluster stars near the critical curve…

astro-ph.CO2025

Constraining the z 1 Initial Mass Function with {\it HST} and {\it JWST} Lensed Stars in MACS J0416.1-2403

Sung Kei Li, Jose M. Diego, Ashish K. Meena +19

Our understanding of galaxy properties and evolution is contingent on knowing the initial mass function (IMF), and yet to date, the IMF is constrained only to local galaxies. Indiv…

astro-ph.CO2024★ 1 cited

Dark Matter distinguished by skewed microlensing in the "Dragon Arc"

Tom Broadhurst, Sung Kei Li, Amruth Alfred +18

Microlensed stars recently discovered by JWST & HST follow closely the winding critical curve of A370 along all sections of the ``Dragon Arc" traversed by the critical curve. These…

astro-ph.CO2022★ 9 cited

Flashlights: More than A Dozen High-Significance Microlensing Events of Extremely Magnified Stars in Galaxies at Redshifts z=0.7-1.5

Patrick L. Kelly, Wenlei Chen, Amruth Alfred +23

Once only accessible in nearby galaxies, we can now study individual stars across much of the observable universe aided by galaxy-cluster gravitational lenses. When a star, compact…