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- University of California, Santa CruzUS73 papers
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14 papers · 1 filter
FLAT: Few-Shot Learning via Autoencoding Transformation Regularizers
Haohang Xu, Hongkai Xiong, Guojun Qi
One of the most significant challenges facing a few-shot learning task is the generalizability of the (meta-)model from the base to the novel categories. Most of existing few-shot…
The Distribution of Ultra-Diffuse and Ultra-Compact Galaxies in the Frontier Fields
Steven R. Janssens, Roberto Abraham, Jean Brodie +2
Large low surface brightness galaxies have recently been found to be abundant in nearby galaxy clusters. In this paper, we investigate these ultra-diffuse galaxies (UDGs) in the si…
Globular clusters in the stellar stream surrounding the Milky Way analog NGC 5907
Adebusola B. Alabi, Duncan A. Forbes, Aaron J. Romanowsky +1
We study the globular clusters (GCs) in the spiral galaxy NGC~5907 well-known for its spectacular stellar stream -- to better understand its origin. Using wide-field Subaru/Suprime…
New Constraints on Early-Type Galaxy Assembly from Spectroscopic Metallicities of Globular Clusters in M87
Alexa Villaume, Aaron J. Romanowsky, Jean Brodie +1
The observed characteristics of globular cluster (GC) systems, such as metallicity distributions, are commonly used to place constraints on galaxy formation models. However, obtain…
Spatially-resolved stellar populations and kinematics with KCWI: probing the assembly history of the massive early-type galaxy NGC 1407
Anna Ferre-Mateu, Duncan A. Forbes, Richard M. McDermid +2
Using the newly commissioned KCWI instrument on the Keck-II telescope, we analyse the stellar kinematics and stellar populations of the well-studied massive early-type galaxy (ETG)…
Effect of Strain on Charge Density Wave Order in the Holstein Model
B. Cohen-Stead, N. C. Costa, E. Khatami +1
We investigate charge ordering in the Holstein model in the presence of anisotropic hopping, , as a model of the effect of strain on charge density wave (CDW)…