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Untangling Similarities and Differences in Star Formation Histories Across Cosmological Simulations
Alicia M. Savelli, Matthew A. Kustec, Joshua S. Speagle +5
How galaxies assemble depends on processes ranging from small-scale baryonic physics to large-scale cosmological assembly, which are difficult to disentangle with observations alon…
OutThere Survey: Addressing and with a population of average galaxies at z2
Ravi Jaiswar, Anshu Gupta, Elisabete da Cunha +24
Constraining the major contributors to the ionisation of the early universe is an ongoing endeavour of high-redshift galaxy research. We measure the ionising photon production effi…
Integral Field Unit Spectroscopy with One Fiber
Zehao Peng, Biprateep Dey, Chris J. Maddison +1
Integral field unit (IFU) spectroscopy provides spatially resolved spectra across galaxies, offering crucial insights into their evolution. However, its high observational cost lim…
On the correlation between globular clusters and the distribution of dark matter in galaxy clusters: the case of Abell 2744
Marta Reina-Campos, Joshua S. Speagle, William E. Harris
Globular clusters (GCs) lie scattered around the inner of the virial radius of galaxy clusters, potentially being excellent tracers of the underlying mass distribution. In t…
It's More Complicated Than You Think: A Forward Model to Infer the Recent Star Formation History, Bursty or Not, of Galaxy Populations
Emilie Burnham, Bingjie Wang, Joel Leja +14
Observations of the early Universe (z > 4) with the James Webb Space Telescope reveal galaxy populations with a wide range of intrinsic luminosities and colors. Bursty star formati…
An Ancient Descendant of the First Galaxies
Jacqueline Antwi-Danso, Adam Muzzin, Luke Robbins +18
JWST has revealed unexpectedly bright galaxies in the first 500 Myr after the Big Bang. Their overabundance suggests that they are preferentially observed during burst phases, wher…
Finding the boundary: Using galaxy membership to inform galaxy cluster extent through machine learning
Christine Hao, Stephanie O'Neil, Mark Vogelsberger +3
The spatial extent of the environment's impact on galaxies marks a transitional region between cluster and field galaxies. We present a data-driven method to identify this region i…
How does feedback affect the star formation histories of galaxies?
Kartheik G. Iyer, Tjitske K. Starkenburg, Greg L. Bryan +20
Star formation in galaxies is regulated by the interplay of a range of processes that shape the multiphase gas in the interstellar and circumgalactic media. Using the CAMELS suite…
MINERVA: A NIRCam Medium Band and MIRI Imaging Survey to Unlock the Hidden Gems of the Distant Universe
Adam Muzzin, Katherine A. Suess, Danilo Marchesini +81
We present an overview of the MINERVA survey, a 259.8 hour (prime) and 127 hour (parallel) Cycle 4 treasury program on the James Webb Space Telescope (JWST). MINERVA is obtaining 8…
SF-R You Sure? The Conflicting Role of Star Formation Rates in Constraining the Evolution of Milky Way Analogues in Cosmological Simulations
Alicia M. Savelli, Joshua S. Speagle, J. Ted Mackereth +2
Milky Way analogues (MWAs) have long been studied by astronomers to place our Galaxy within an extragalactic context. With the power of cosmological simulations, we are now able to…
Should zeros count? Modeling the galaxy-globular cluster scaling relation with(out) zero-inflated count models
Samantha C. Berek, Gwendolyn M. Eadie, Joshua S. Speagle +1
The scaling relation between the size of a galaxy's globular cluster (GC) population () and the galaxy's stellar mass () is usually described with a continuous, linear…
Stochastic prior for non-parametric star-formation histories
Jenny T. Wan, Sandro Tacchella, Benjamin D. Johnson +3
The amount of power contained in the variations in galaxy star-formation histories (SFHs) across a range of timescales encodes key information about the physical processes which mo…
Katachi: Decoding the Imprints of Past Star Formation on Present Day Morphology in Galaxies with Interpretable CNNs
Juan Pablo Alfonzo, Kartheik G. Iyer, Masayuki Akiyama +8
The physical processes responsible for shaping how galaxies form and quench over time leave imprints on both the spatial (galaxy morphology) and temporal (star formation history; S…
The Power of High Precision Broadband Photometry: Tracing the Milky Way Density Profile with Blue Horizontal Branch stars in the Dark Energy Survey
Fengqing Yu, Ting S. Li, Joshua S. Speagle +9
Blue Horizontal Branch (BHB) stars, excellent distant tracers for probing the Milky Way's halo density profile, are distinguished in the vs color space from ano…
Hierarchical Bayesian Inference of Globular Cluster Properties
Robin Y. Wen, Joshua S. Speagle, Jeremy J. Webb +1
We present a hierarchical Bayesian inference approach to estimating the structural properties and the phase space center of a globular cluster (GC) given the spatial and kinematic…
A catalogue of Galactic GEMS: Globular cluster Extra-tidal Mock Stars
Steffani M. Grondin, Jeremy J. Webb, James M. M. Lane +2
This work presents the Globular cluster Extra-tidal Mock Star (GEMS) catalogue of extra-tidal stars and binaries created via three-body dynamical encounters in globular cluster cor…
Extending the Chemical Reach of the H3 Survey: Detailed Abundances of the Dwarf-galaxy Stellar Stream Wukong/LMS-1
Guilherme Limberg, Alexander P. Ji, Rohan P. Naidu +10
We present the first detailed chemical-abundance analysis of stars from the dwarf-galaxy stellar stream Wukong/LMS-1 covering a wide metallicity range ($-3.5 < \rm[Fe/H] \lesssim -…
A parsec-scale Galactic 3D dust map out to 1.25 kpc from the Sun
Gordian Edenhofer, Catherine Zucker, Philipp Frank +4
High-resolution 3D maps of interstellar dust are critical for probing the underlying physics shaping the structure of the interstellar medium, and for foreground correction of astr…
Roman Early-Definition Astrophysics Survey Opportunity: Galactic Roman Infrared Plane Survey (GRIPS)
Roberta Paladini, Catherine Zucker, Robert Benjamin +67
A wide-field near-infrared survey of the Galactic disk and bulge/bar(s) is supported by a large representation of the community of Galactic astronomers. The combination of sensitiv…
The FENIKS Survey: Spectroscopic Confirmation of Massive Quiescent Galaxies at z ~ 3-5
Jacqueline Antwi-Danso, Casey Papovich, James Esdaile +13
The measured ages of massive, quiescent galaxies at imply that massive galaxies quench as early as . While the number of spectroscopic confirmations of quiesce…
The HERBAL model: A hierarchical errors-in-variables Bayesian lognormal hurdle model for galactic globular cluster populations
Samantha C. Berek, Gwendolyn M. Eadie, Joshua S. Speagle +1
Galaxy stellar mass is known to be monotonically related to the size of the galaxy's globular cluster (GC) population for Milky Way sized and larger galaxies. However, the relation…
Disentangling Stellar Age Estimates from Galactic Chemodynamical Evolution
Jeff Shen, Joshua S. Speagle, J. Ted Mackereth +2
Stellar ages are key for determining the formation history of the Milky Way, but are difficult to measure precisely. Furthermore, methods that use chemical abundances to infer ages…
Dwarf galaxy archaeology from chemical abundances and star formation histories
James W. Johnson, Charlie Conroy, Benjamin D. Johnson +8
We model the stellar abundances and ages of two disrupted dwarf galaxies in the Milky Way stellar halo: Gaia-Sausage Enceladus (GSE) and Wukong/LMS-1. Using a statistically robust…
Characterizing the 3D Kinematics of Young Stars in the Radcliffe Wave
Alan J. Tu, Catherine Zucker, Joshua S. Speagle +5
We present an analysis of the kinematics of the Radcliffe Wave, a 2.7-kpc-long sinusoidal band of molecular clouds in the solar neighborhood recently detected via 3D dust mapping.…