A comprehensive study of type I (thermonuclear) bursts in the new transient SRGA J144459.2$-$604207

Kavli Affiliate: Renxin Xu | First 5 Authors: Tao Fu, Zhaosheng Li, Yuanyue Pan, Long Ji, Yupeng Chen | Summary: We report analysis of $textit{Insight}$-HXMT observations of the newly discovered accreting millisecond pulsar SRGA J144459.2$-$604207. During the outburst, detected in 2024 February by $textit{eROSITA}$, the broadband persistent spectrum was well fitted by an absorbed Comptonization […]


Continue.. A comprehensive study of type I (thermonuclear) bursts in the new transient SRGA J144459.2$-$604207

TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Michaela Vítková, Rafael Brahm, Trifon Trifonov, Petr Kabáth, Andrés Jordán | Summary: We present a joint analysis of TTVs and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known transit timing variations (TTVs), with a peak-to-node […]


Continue.. TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Michaela Vítková, Rafael Brahm, Trifon Trifonov, Petr Kabáth, Andrés Jordán | Summary: We present a joint analysis of TTVs and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known transit timing variations (TTVs), with a peak-to-node […]


Continue.. TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Michaela Vítková, Rafael Brahm, Trifon Trifonov, Petr Kabáth, Andrés Jordán | Summary: We present a joint analysis of TTVs and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known transit timing variations (TTVs), with a peak-to-node […]


Continue.. TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Feng Long, Ilaria Pascucci, Adrien Houge, Andrea Banzatti, Klaus M. Pontoppidan | Summary: We present a JWST MIRI/MRS spectrum of the inner disk of WISE J044634.16$-$262756.1B (hereafter J0446B), an old ($sim$34 Myr) M4.5 star but with hints of ongoing accretion. The spectrum is molecule-rich and dominated […]


Continue.. The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase

SZ-X-ray Surface Brightness Fluctuations in the SPT-XMM clusters

Kavli Affiliate: Lindsey E. Bleem | First 5 Authors: Charles Romero, Massimo Gaspari, Gerrit Schellenberger, Bradford A. Benson, Lindsey E. Bleem | Summary: The hot plasma in galaxy clusters, the intracluster medium (ICM), is expected to be shaped by subsonic turbulent motions, which are key for heating, cooling, and transport mechanisms. The turbulent motions contribute […]


Continue.. SZ-X-ray Surface Brightness Fluctuations in the SPT-XMM clusters

Origin of Increased Curie Temperature in Lithium-Substituted Ferroelectric Niobate Perovskite: Enhancement of the Soft Polar Mode

Kavli Affiliate: Ke Wang | First 5 Authors: Hao-Cheng Thong, Fang-Zhou Yao, Xian-Xian Cai, Ze Xu, Mao-Hua Zhang | Summary: The functionality of ferroelectrics is often constrained by their Curie temperature, above which depolarization occurs. Lithium (Li) is the only experimentally known substitute that can increase the Curie temperature in ferroelectric niobate-based perovskites, yet the […]


Continue.. Origin of Increased Curie Temperature in Lithium-Substituted Ferroelectric Niobate Perovskite: Enhancement of the Soft Polar Mode

EMPRESS. X. Spatially resolved mass-metallicity relation in extremely metal-poor galaxies: evidence of episodic star-formation fueled by a metal-poor gas infall

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Kimihiko Nakajima, Masami Ouchi, Yuki Isobe, Yi Xu, Shinobu Ozaki | Summary: Using the Subaru/FOCAS IFU capability, we examine the spatially resolved relationships between gas-phase metallicity, stellar mass, and star-formation rate surface densities (Sigma_* and Sigma_SFR, respectively) in extremely metal-poor galaxies (EMPGs) in the local universe. Our […]


Continue.. EMPRESS. X. Spatially resolved mass-metallicity relation in extremely metal-poor galaxies: evidence of episodic star-formation fueled by a metal-poor gas infall

Uniting the Observed Dynamical Dark Energy Preference with the Discrepancies in $Ω_m$ and $H_0$ Across Cosmological Probes

Kavli Affiliate: Chihway Chang | First 5 Authors: Xianzhe TZ Tang, Dillon Brout, Tanvi Karwal, Chihway Chang, Vivian Miranda | Summary: Recent results from Type Ia Supernovae (SNe), baryon acoustic oscillations (BAO), and the cosmic microwave background (CMB) indicate 1) potentially discrepant measurements of the matter density $Omega_m$ and Hubble constant $ H_0 $ in […]


Continue.. Uniting the Observed Dynamical Dark Energy Preference with the Discrepancies in $Ω_m$ and $H_0$ Across Cosmological Probes

Targeting the Core: A Simple and Effective Method to Attack RAG-based Agents via Direct LLM Manipulation

Kavli Affiliate: Zhuo Li | First 5 Authors: Xuying Li, Zhuo Li, Yuji Kosuga, Yasuhiro Yoshida, Victor Bian | Summary: AI agents, powered by large language models (LLMs), have transformed human-computer interactions by enabling seamless, natural, and context-aware communication. While these advancements offer immense utility, they also inherit and amplify inherent safety risks such as […]


Continue.. Targeting the Core: A Simple and Effective Method to Attack RAG-based Agents via Direct LLM Manipulation