One Small Step for an Inflaton, One Giant Leap for Inflation: a novel non-Gaussian tail and primordial black holes

Kavli Affiliate: Misao Sasaki | First 5 Authors: Yi-Fu Cai, Xiao-Han Ma, Misao Sasaki, Dong-Gang Wang, Zihan Zhou | Summary: We report a novel prediction from single-field inflation that even a tiny step in the inflaton potential can change our perception of primordial non-Gaussianities of the curvature perturbation. Our analysis focuses on the tail of […]


Continue.. One Small Step for an Inflaton, One Giant Leap for Inflation: a novel non-Gaussian tail and primordial black holes

A FAST Survey of HINSA in PGCCs Guided by HC3N

Kavli Affiliate: Ke Wang | First 5 Authors: Xunchuan Liu, Yuefang Wu, Chao Zhang, Ningyu Tang, Tie Liu | Summary: Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we search for HI narrow-line self-absorption (HINSA) features in twelve Planck Galactic cold clumps (PGCCs), one starless core L1521B and four star forming sources. Eight of the […]


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On the Detection of QCD Axion Dark Matter by Coherent Scattering

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Hajime Fukuda, Satoshi Shirai, , , | Summary: The QCD axion is a promising candidate of the dark matter. In this paper, we discuss elastic scattering processes between nucleons and the QCD axion dark matter. We point out that the cross section can be enhanced by more […]


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TOI 560 : Two Transiting Planets Orbiting a K Dwarf Validated with iSHELL, PFS and HIRES RVs

Kavli Affiliate: Avi Shporer | First 5 Authors: Mohammed El Mufti, Peter P. Plavchan, Howard Isaacson, Bryson L. Cale, Dax L. Feliz | Summary: We validate the presence of a two-planet system orbiting the 0.2–1.4 Gyr K4 dwarf TOI 560 (HD 73583). The system consists of an inner moderately eccentric transiting mini-Neptune (TOI 560 b, […]


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A Linear Relation Between the Color Stretch $s_{BV}$ and the Rising Color Slope $s_0^*(B-V)$ of Type Ia Supernovae

Kavli Affiliate: Subo Dong | First 5 Authors: Ping Chen, Subo Dong, Chris Ashall, S. Benetti, D. Bersier | Summary: Using data from the Complete Nearby ($z_{host}<0.02$) sample of Type Ia Supernovae (CNIa0.02), we discover a linear relation between two parameters derived from the $B-V$ color curves of Type Ia supernovae: the "color stretch" $s_{BV}$ […]


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Direct visualization of electronic transport in a quantum anomalous Hall insulator

Kavli Affiliate: Katja C. Nowack | First 5 Authors: G. M. Ferguson, Run Xiao, Anthony R. Richardella, David Low, Nitin Samarth | Summary: A quantum anomalous Hall (QAH) insulator is characterized by quantized Hall and vanishing longitudinal resistances at zero magnetic field that are protected against local perturbations and independent of sample details. This insensitivity […]


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An Empirical Evaluation On the Applicability of the DALiuGE Execution Framework

Kavli Affiliate: Feng Wang | First 5 Authors: Ying Mei, Shoulin Wei, Feng Wang, Chen Wu, Rodrigo Tobar | Summary: The Square Kilometre Array (SKA) project is an international cooperation project to build the largest radio telescope worldwide. Data processing is one of the biggest challenges of building the SKA telescope. As a distributed execution […]


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Statistics and Topology of Fluctuating Ribbons

Kavli Affiliate: L. Mahadevan | First 5 Authors: Ee Hou Yong, Farisan Dary, Luca Giomi, L. Mahadevan, | Summary: Ribbons are a class of slender structures whose length, width, and thickness are widely separated from each other. This scale separation gives a ribbon unusual mechanical properties in athermal macroscopic settings, e.g. it can bend without […]


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Sensitivity of the Roman Coronagraph Instrument to Exozodiacal Dust

Kavli Affiliate: Bruce Macintosh | First 5 Authors: Ewan S Douglas, John Debes, Bertrand Mennesson, Bijan Nemati, Jaren Ashcraft | Summary: Exozodiacal dust, warm debris from comets and asteroids in and near the habitable zone of stellar systems, reveals the physical processes that shape planetary systems. Scattered light from this dust is also a source […]


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