Towards robust and generalizable representations of extracellular data using contrastive learning

Kavli Affiliate: Liam Paninski | Authors: Ankit Vishnubhotla, Charlotte Loh, Liam Paninski, Akash Srivastava and Cole Lincoln Hurwitz | Summary: Contrastive learning is quickly becoming an essential tool in neuroscience for extracting robust and meaningful representations of neural activity. Despite numerous applications to neuronal population data, there has been little exploration of how these methods […]


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Ly$α$ emission in galaxies at $zsimeq5-6$: new insight from JWST into the statistical distributions of Ly$α$ properties at the end of reionization

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Mengtao Tang, Daniel P. Stark, Richard S. Ellis, Fengwu Sun, Michael Topping | Summary: JWST has recently sparked a new era of Lya spectroscopy, delivering the first measurements of the Lya escape fraction and velocity profile in typical galaxies at z~6-10. These observations offer new prospects for […]


Continue.. Ly$α$ emission in galaxies at $zsimeq5-6$: new insight from JWST into the statistical distributions of Ly$α$ properties at the end of reionization

High-quality Extragalactic Legacy-field Monitoring (HELM) with DECam

Kavli Affiliate: Claudio Ricci | First 5 Authors: Ming-Yang Zhuang, Qian Yang, Yue Shen, Monika Adamow, Douglas N. Friedel | Summary: High-quality Extragalactic Legacy-field Monitoring (HELM) is a long-term observing program that photometrically monitors several well-studied extragalactic legacy fields with the Dark Energy Camera (DECam) imager on the CTIO 4m Blanco telescope. Since Feb 2019, […]


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[O IV] and [Ne V]-weak AGNs Hidden by Compton-thick Material in Late Mergers

Kavli Affiliate: Claudio Ricci | First 5 Authors: Satoshi Yamada, Yoshihiro Ueda, Taiki Kawamuro, Claudio Ricci, Yoshiki Toba | Summary: We study "buried" active galactic nuclei (AGNs) almost fully covered by circumnuclear material in ultra-/luminous infrared galaxies (U/LIRGs), which show weak ionized lines from narrow line regions. Employing an indicator of [O IV] 25.89-um or […]


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GenEFT: Understanding Statics and Dynamics of Model Generalization via Effective Theory

Kavli Affiliate: Max Tegmark | First 5 Authors: David D. Baek, Ziming Liu, Max Tegmark, , | Summary: We present GenEFT: an effective theory framework for shedding light on the statics and dynamics of neural network generalization, and illustrate it with graph learning examples. We first investigate the generalization phase transition as data size increases, […]


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ClickSAM: Fine-tuning Segment Anything Model using click prompts for ultrasound image segmentation

Kavli Affiliate: Jing Wang | First 5 Authors: Aimee Guo, Gace Fei, Hemanth Pasupuletic, Jing Wang, | Summary: The newly released Segment Anything Model (SAM) is a popular tool used in image processing due to its superior segmentation accuracy, variety of input prompts, training capabilities, and efficient model design. However, its current model is trained […]


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Robust inference of the Galactic centre gamma-ray excess spatial properties

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Deheng Song, Christopher Eckner, Chris Gordon, Francesca Calore, Oscar Macias | Summary: The gamma-ray Fermi-LAT Galactic centre excess (GCE) has puzzled scientists for over 15 years. Despite ongoing debates about its properties, and especially its spatial distribution, its nature remains elusive. We scrutinize how the estimated spatial […]


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Significant noise improvement in a Kinetic Inductance Phonon-Mediated detector by use of a wideband parametric amplifier

Kavli Affiliate: Sunil R. Golwala | First 5 Authors: Karthik Ramanathan, Osmond Wen, Taylor Aralis, Ritoban Basu Thakur, Bruce Bumble | Summary: Microwave Kinetic Inductance Detectors (MKIDs) have been demonstrated as capable phonon sensors when coupled to crystalline substrates, and have been proposed as detectors for next-generation rare-event searches such as for the direct detection […]


Continue.. Significant noise improvement in a Kinetic Inductance Phonon-Mediated detector by use of a wideband parametric amplifier

Splitting probabilities are optimal controllers of rare reactive events

Kavli Affiliate: David T. Limmer | First 5 Authors: Aditya N. Singh, David T. Limmer, , , | Summary: The committor constitutes the primary quantity of interest within chemical kinetics as it is understood to encode the ideal reaction coordinate for a rare reactive event. We show the generative utility of the committor, in that […]


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The AGORA High-resolution Galaxy Simulations Comparison Project. V: Satellite Galaxy Populations In A Cosmological Zoom-in Simulation of A Milky Way-mass Halo

Kavli Affiliate: Tom Abel | First 5 Authors: Minyong Jung, Santi Roca-Fàbrega, Ji-hoon Kim, Anna Genina, Loic Hausammann | Summary: We analyze and compare the satellite halo populations at $zsim2$ in the high-resolution cosmological zoom-in simulations of a $10^{12},{rm M}_{odot}$ target halo ($z=0$ mass) carried out on eight widely-used astrophysical simulation codes ({sc Art-I}, {sc […]


Continue.. The AGORA High-resolution Galaxy Simulations Comparison Project. V: Satellite Galaxy Populations In A Cosmological Zoom-in Simulation of A Milky Way-mass Halo