The DECam MAGIC Survey: A Wide-field Photometric Metallicity Study of the Sculptor Dwarf Spheroidal Galaxy

Posted by klaurent Chicago

Kavli Affiliate: Alexander Ji | First 5 Authors: Fabrícia O. Barbosa, Anirudh Chiti, Guilherme Limberg, Andrew Pace, William Cerny | Summary: The metallicity distribution function and internal chemical variations of a galaxy are fundamental to understand its formation and assembly history. In this work, we analyze photometric metallicities for 3883 stars over seven half-light radii […]


Continue.. The DECam MAGIC Survey: A Wide-field Photometric Metallicity Study of the Sculptor Dwarf Spheroidal Galaxy

JADES: comprehensive census of broad-line AGN from Reionization to Cosmic Noon revealed by JWST

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Ignas Juodžbalis, Roberto Maiolino, William M. Baker, Emma Curtis Lake, Jan Scholtz | Summary: The depth and coverage of the first years of JWST observations have revealed low luminosity active galactic nuclei (AGN) across a wide redshift range, shedding light on black hole (BH) assembly and feedback. […]


Continue.. JADES: comprehensive census of broad-line AGN from Reionization to Cosmic Noon revealed by JWST

Recursive Training Loops in LLMs: How training data properties modulate distribution shift in generated data?

Posted by dbos MIT

Kavli Affiliate: Peter Ford | First 5 Authors: Grgur Kovač, Jérémy Perez, Rémy Portelas, Peter Ford Dominey, Pierre-Yves Oudeyer | Summary: Large language models (LLMs) are increasingly contributing to the creation of content on the Internet. This creates a feedback loop as subsequent generations of models will be trained on this generated, synthetic data. This […]


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Evidence for Charge Exchange Emission in Supernova Remnant N132D from XRISM/Resolve Observations

Posted by klaurent MIT

Kavli Affiliate: Eric D. Miller | First 5 Authors: Liyi Gu, Hiroya Yamaguchi, Adam Foster, Satoru Katsuda, Hiroyuki Uchida | Summary: XRISM has delivered one of its first light observations on N132D, the X-ray brightest supernova remnant in the Large Magellanic Cloud. Utilizing 193 ks of high-resolution X-ray spectroscopy data, we conduct a comprehensive search […]


Continue.. Evidence for Charge Exchange Emission in Supernova Remnant N132D from XRISM/Resolve Observations

Ain’t no resonance high enough: Core collapse in self-interacting dark matter across two decades in halo mass

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Vinh Tran, Xuejian Shen, Daniel Gilman, Mark Vogelsberger, Stephanie O’Neil | Summary: Core collapse, a process associated with self-interacting dark matter (SIDM) models, can increase the central density of halos by orders of magnitude with observable consequences for dwarf galaxy properties and gravitational lensing. Resonances in the […]


Continue.. Ain’t no resonance high enough: Core collapse in self-interacting dark matter across two decades in halo mass

Supersizing hydrodynamical simulations of reionization using perturbative techniques

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Wenzer Qin, Katelin Schutz, Olivia Rosenstein, Stephanie O’Neil, Mark Vogelsberger | Summary: We show that perturbative techniques inspired by effective field theory (EFT) can be used to "paint on" the 21~cm field during reionization using only the underlying linear density field. This procedure is accurate to within […]


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TDCOSMO XVII. New time delays in 22 lensed quasars from optical monitoring with the ESO-VST 2.6m and MPG 2.2m telescopes

Posted by dbos Cambridge

Kavli Affiliate: R. G. McMahon | First 5 Authors: Frédéric Dux, Martin Millon, Aymeric Galan, Eric Paic, Cameron Lemon | Summary: We present new time delays, the main ingredient of time delay cosmography, for 22 lensed quasars resulting from high-cadence r-band monitoring on the 2.6 m ESO VLT Survey Telescope and Max-Planck-Gesellschaft 2.2 m telescope. […]


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Enhancing Compton telescope imaging with maximum a posteriori estimation: a modified Richardson-Lucy algorithm for the Compton Spectrometer and Imager

Posted by dbos Tokyo

Kavli Affiliate: Shigeki Matsumoto | First 5 Authors: Hiroki Yoneda, Thomas Siegert, Israel Martinez-Castellanos, Savitri Gallego, Chris Karwin | Summary: We present a modified Richardson-Lucy (RL) algorithm tailored for image reconstruction in MeV gamma-ray observations, focusing on its application to the upcoming Compton Spectrometer and Imager (COSI) mission. Our method addresses key challenges in MeV […]


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QPanda3: A High-Performance Software-Hardware Collaborative Framework for Large-Scale Quantum-Classical Computing Integration

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Tianrui Zou, Yuan Fang, Jing Wang, Menghan Dou, Jun Fu | Summary: QPanda3 is a high-performance quantum programming framework that enhances quantum computing efficiency through optimized circuit compilation, an advanced instruction stream format (OriginBIS), and hardware-aware execution strategies. These engineering optimizations significantly improve both processing speed and […]


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