61 citations · 97 across the 16 of their papers we have counts for
17 papers
An Energetic Consistency Test for Feedback-Driven Gas Loss in Milky Way Dwarf Satellites
Sena A. Matsui, Tsutomu T. Takeuchi, Suchetha Cooray +1
Dwarf spheroidal galaxies (dSphs) contain little detectable cold gas, but the relative roles of stellar feedback, reionization, and environmental effects in their gas loss remain u…
Interplay of Compaction, Quenching, and Black Hole Growth in the Most Massive Galaxies since : Insights from JWST and Chandra Data
Novan Saputra Haryana, Masayuki Akiyama, Abdurro'uf +16
The buildup of dense stellar cores is expected to mark an important transition in the star-formation and black-hole growth of massive galaxies. Using spatially resolved spectral en…
A Path to an All-Sky Survey with Roman
Jiwon Jesse Han, Anirudh Chiti, Kai-Feng Chen +93
A deep, space-based, all-sky near-infrared survey carried out with the Nancy Grace Roman Space Telescope would constitute a foundational astronomical infrastructure for decades to…
ReplicationBench: Can AI Agents Replicate Astrophysics Research Papers?
Christine Ye, Sihan Yuan, Suchetha Cooray +10
Frontier AI agents show increasing promise as scientific research assistants, and may eventually be useful for extended, open-ended research workflows. However, in order to use age…
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…
Insights into the dependence of galaxy properties on the environment with explainable machine learning models
Shun-ya S. Uchida, Suchetha Cooray, Atsushi J. Nishizawa +2
Galaxies reside within dark matter halos, but their properties are influenced not only by their halo properties but also by the surrounding environment. We construct an interpretab…
sOPTICS: A Modified Density-Based Algorithm for Identifying Galaxy Groups/Clusters and Brightest Cluster Galaxies
Hai-Xia Ma, Tsutomu T. Takeuchi, Suchetha Cooray +1
A direct approach to studying the galaxy-halo connection is to analyze groups and clusters of galaxies that trace the underlying dark matter halos, emphasizing the importance of id…
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…
Extracting an Informative Latent Representation of High-Dimensional Galaxy Spectra
Daiki Iwasaki, Suchetha Cooray, Tsutomu T. Takeuchi
To understand the fundamental parameters of galaxy evolution, we investigated the minimum set of parameters that explain the observed galaxy spectra in the local Universe. We ident…
Galaxy Manifold: Characterizing and understanding galaxies with two parameters
Suchetha Cooray, Tsutomu T. Takeuchi, Daichi Kashino +3
We report the discovery of a two-dimensional Galaxy Manifold within the multi-dimensional luminosity space of local galaxies. The multi-dimensional luminosity space is constructed…
Estimating Galaxy Star Formation Rates from Murchison Widefield Array Radio Continuum Emission
Tsutomu T. Takeuchi, Suchetha Cooray, Luca Cortese +3
We investigate the frequency dependence of the low-frequency infrared (IR)--radio correlation for nearby galaxies drawn from the {\sl Herschel} Reference Survey (HRS), using radio…
High Dimensional Statistical Analysis and its Application to ALMA Map of NGC 253
Tsutomu T. Takeuchi, Kazuyoshi Yata, Kento Egashira +6
In astronomy, if we denote the dimension of data as and the number of samples as , we often meet a case with . Traditionally, such a situation is regarded as ill-po…
Wavelets and sparsity for Faraday tomography
Suchetha Cooray, Tsutomu T. Takeuchi, Shinsuke Ideguchi +3
Faraday tomography through broadband polarimetry can provide crucial information on magnetized astronomical objects, such as quasars, galaxies, or galaxy clusters. However, the lim…
An Iterative Reconstruction Algorithm for Faraday Tomography
Suchetha Cooray, Tsutomu T. Takeuchi, Takuya Akahori +4
Faraday tomography offers crucial information on the magnetized astronomical objects, such as quasars, galaxies, or galaxy clusters, by observing its magnetoionic media. The observ…
A Study on the Baryon Acoustic Oscillation with Topological Data Analysis
Kai T. Kono, Tsutomu T. Takeuchi, Suchetha Cooray +2
(abridged) The scale of the acoustic oscillation of baryons at the baryon-photon decoupling is imprinted on the spatial distribution of galaxies in the Universe, known as the baryo…
A Method for Unmasking Incomplete Astronomical Signals: Application to CO Multi-line Imaging of Nearby Galaxies Project
Suchetha Cooray, Tsutomu T. Takeuchi, Moe Yoda +1
Photometric surveys have provided incredible amounts of astronomical information in the form of images. However, astronomical images often contain artifacts that can critically hin…
CO Multi-line Imaging of Nearby Galaxies (COMING) IV. Overview of the Project
Kazuo Sorai, Nario Kuno, Kazuyuki Muraoka +36
Observations of the molecular gas in galaxies are vital to understanding the evolution and star-forming histories of galaxies. However, galaxies with molecular gas maps of their wh…