Publications (18)
COOL-LAMPS I. An Extraordinarily Bright Lensed Galaxy at Redshift 5.04
Gourav Khullar, Katya Gozman, Jason J. Lin +19
We report the discovery of COOL J1241+2219, a strongly-lensed galaxy at redshift =5.0430.002 with observed magnitude , lensed by a moderate-mass galaxy cluste…
Galaxy mergers and disk angular momentum evolution: stellar halos as a critical test
Eric F. Bell, Richard D'Souza, Monica Valluri +1
We investigate the role of hierarchical assembly in the angular momentum (AM) evolution of galaxies using a sample of 471 Milky Way-mass galaxies from the TNG-50 simulation. While…
Origins of the Evil Eye: M64's Stellar Halo Reveals the Recent Accretion of an SMC-mass Satellite
Adam Smercina, Eric F. Bell, Paul A. Price +9
M64, often called the "Evil Eye" galaxy, is unique among local galaxies. Beyond its dramatic, dusty nucleus, it also hosts an outer gas disk that counter-rotates relative to its st…
COOL-LAMPS II. Characterizing the Size and Star Formation History of a Bright Strongly Lensed Early-Type Galaxy at Redshift 1.02
Ezra Sukay, Gourav Khullar, Michael D. Gladders +17
We present COOL J1323+0343, an early-type galaxy at , strongly lensed by a cluster of galaxies at z = . This object was originally image…
AREPAS: A Resource for Exploring Protostellar Accretion Systems - Data Release I
Marbely Micolta, Thanawuth Thanathibodee, Katya Gozman +1
We present AREPAS, a visualization tool for the exploration of the first data release of the open library of magnetospheric accretion models for T Tauri Stars. The dataset covers t…
Spatial Variation in Strong Line Ratios and Physical Conditions in Two Strongly-Lensed Galaxies at z~1.4
Michael K. Florian, Jane R. Rigby, Ayan Acharyya +14
For studies of galaxy formation and evolution, one of the major benefits of the James Webb Space Telescope is that space-based IFUs like those on its NIRSpec and MIRI instruments w…
COOL-LAMPS VIII: Known wide-separation lensed quasars and their host galaxies reveal a lack of evolution in since
Aidan P. Cloonan, Gourav Khullar, Kate A. Napier +36
Wide-separation lensed quasars (WSLQs) are a rare class of strongly lensed quasars, magnified by foreground massive galaxy clusters, with typically large magnifications of the mult…
COOL-LAMPS III: Discovery of a 25".9 Separation Quasar Lensed by a Merging Galaxy Cluster
Michael N. Martinez, Kate A. Napier, Aidan P. Cloonan +16
In the third paper from the COOL-LAMPS Collaboration, we report the discovery of COOL J0542-2125, a gravitationally lensed quasar at , observed as three images due to an in…
Ultrafaint Dwarf Galaxy Candidates in the M81 Group: Signatures of Group Accretion
Eric F. Bell, Adam Smercina, Paul A. Price +8
The faint and ultrafaint dwarf galaxies in the Local Group form the observational bedrock upon which our understanding of small-scale cosmology rests. In order to understand whethe…
Exploring the Diversity of Faint Satellites in the M81 Group
Katya Gozman, Eric F. Bell, In Sung Jang +9
In the last decade, we have been able to probe further down the galaxy luminosity function than ever before and expand into the regime of ultra-faint dwarfs (UFDs), which are some…
Saying Hallo to M94's Stellar Halo: Investigating the Accretion History of the Largest Pseudobulge Host in the Local Universe
Katya Gozman, Eric F. Bell, Adam Smercina +7
It is not yet settled how the combination of secular processes and merging gives rise to the bulges and pseudobulges of galaxies. The nearby ( 4.2 Mpc) disk galaxy M94 (NGC…
COOL-LAMPS. VII. Quantifying Strong-lens Scaling Relations with 177 Cluster-scale Strong Gravitational Lenses in DECaLS
Simon D. Mork, Michael D. Gladders, Gourav Khullar +27
We estimate the Einstein-radius-enclosed total mass for 177 cluster-scale strong gravitational lenses identified by the ChicagO Optically selected Lenses Located At the Margins of…
COOL-LAMPS IV: A Sample of Bright Strongly-Lensed Galaxies at
Yunchong Zhang, Viraj Manwadkar, Michael D. Gladders +21
We report the discovery of five bright strong gravitationally lensed galaxies at : COOLJ01012055 (), COOLJ01040757 (), COOLJ01451018 ($z =…
First Detections of Exop(lan)ets: Observations and Follow-Ups of the Floofiest Transits on Zoom
Sabina Sagynbayeva, Briley L. Lewis, Graham M. Doskoch +16
With the proliferation of online Zoom meetings as a means of doing science in the 2020s, astronomers have made new and unexpected Target of Opportunity (ToO) observations. Chief am…
A Timeline of the M81 Group: Properties of the Extended Structures of M82 and NGC 3077
Benjamin N. Velguth, Eric F. Bell, Adam Smercina +8
Mergers of and interactions between galaxies imprint a wide diversity of morphological, dynamical, and chemical characteristics in stellar halos and tidal streams. Measuring these…
Andromeda XXXV: The Faintest Dwarf Satellite of the Andromeda Galaxy
Jose Marco Arias, Eric F. Bell, Katya Gozman +8
We present the discovery of Andromeda XXXV, the faintest Andromeda satellite galaxy discovered to date, identified as an overdensity of stars in the Pan-Andromeda Archaeological Su…
COOL-LAMPS VI: Lens model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens
Maxwell Klein, Keren Sharon, Kate Napier +20
We present a strong lensing analysis of COOL J1241+2219, the brightest known gravitationally lensed galaxy at , based on new multi-band Hubble Space Telescope (HST) imagi…
The low-mass and structured stellar halo of M83 argues against a merger origin for its starburst and extended neutral hydrogen disk
Eric F. Bell, Benjamin Harmsen, Matthew Cosby +12
A merger origin has been suggested for M83's massive, metal-rich extended HI disk and nuclear starburst. We observe M83's stellar halo to test this idea. We train nearest-neighbor…