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Showing 4983 results for "phyllipe lima" in Physics · Preprint
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Probing dust properties through polarized scattered-light images of a sample of ring-shaped protoplanetary disks

Maxime Roumesy, Francois Menard, Gaspard Duchene, Ryo Tazaki, Christian Ginski · 2026

The evolution of protoplanetary disks, especially in the early stages of planetary formation, as dust grows, is the cornerstone of the birth of planets. The mechanisms involved in the growth of sub-mi…

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Fractional Cosmic String Loops In Expanding Universe

Pankaj Chaturvedi, Bikram Nath · 2026

We study the dynamics of circular cosmic string loops in a spatially flat Friedmann Lema\^itre Robertson Walker universe within a fractional Polyakov framework that incorporates nonlocal memory effect…

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Analyses on Wassenius' Report for Total Solar Eclipse in 1733: Quantifications of the Solar Radius and the Earliest Reported Prominences

Hisashi Hayakawa, Mitsuru Soma, Noortje Peek, Jean-Pierre Rozelot, Stanislav Gunar, Alexei Pevtsov · 2026

Total solar eclipses (TSEs) offer a unique opportunity to observe the solar atmosphere, detect limb phenomena, and accurately measure the solar radius. Following the TSE in 1733, Wassenius first repor…

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High-Precision Ground Characterization of Test-Mass Magnetic Properties for the Taiji Gravitational Wave Mission via a Physics-Informed Neural Framework

Chang Liu, Qiong Deng, Huadong Li, Liwei Yang, Xiaodong Peng, Ziren Luo, Yuzhu Zhang, Chen Gao, Xiaotong Wei, Minghui Du, Zihao Xiao, Peng Xu, Bo Liang, Zhi Wang, Li-e Qiang · 2026

Taiji is a gravitational wave detection mission in space initiated by the Chinese Academy of Sciences, which will open the millihertz window through a heliocentric triangular constellation of three dr…

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Assessing EMRI Detectability of the Rotating Quantum Oppenheimer-Snyder Black Hole

Dan Zhang, Shulan Li, Guoyang Fu, Jian-Pin Wu · 2026

This letter presents an assessment of quantum gravity effects on extreme-mass-ratio inspirals (EMRIs) for the rotating quantum Oppenheimer-Snyder (qOS) black hole. Employing the adiabatic evolution, w…

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Multi-Viewpoint Observation of a Failed Prominence Eruption on the Sun

Tingyu Gou, Katharine K. Reeves, Peter R. Young, Astrid M. Veronig, Xingyao Chen, Sijie Yu, Bin Chen, Bin Zhuang · 2026

Solar eruptions are sudden ejections of coronal mass and magnetic fields accompanied by intense energy release. The eruptive structure does not always erupt successfully, but sometimes fails to escape…

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Physics Preprint PDF DOI

Integrability of Conformal Killing Vectors in the Eisenhart Lift of Scalar-Field FLRW Cosmology

Takeshi Chiba, Tsuyoshi Houri · 2026

We study the integrability conditions of the conformal Killing equations for the Eisenhart lift of a scalar field in a flat Friedmann-Lema\^\i tre-Robertson-Walker universe. We show that the potential…

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Cosmological discrete self-similarity in primordial black hole formation

Luis E. Padilla, Tomohiro Harada, Ethan Milligan, David Mulryne · 2026

We demonstrate that discrete self-similarity (DSS), originally discovered in the collapse of a massless scalar field in an asymptotically flat system, survives in primordial black hole (PBH) formation…

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Chaotic migration of LISA Extreme Mass Ratio Inspirals in a turbulent accretion disk: effect on waveform de-phasing

Mudit Garg, Lucio Mayer, Yinhao Wu, Yacine Ali-Haimoud, Douglas N.C. Lin · 2026

Gravitational wave (GW) detector LISA will observe near-coalescence extreme mass ratio inspirals (EMRIs), which typically form in galactic central accretion disks. Gas torques on EMRI will alter its G…

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Primordial Magnetogenesis and Gravitational Waves from ALP-assisted Phase Transition

Pankaj Borah, P. S. Bhupal Dev, Anish Ghoshal · 2026

Sufficiently strong first-order phase transitions (FOPTs) in the early Universe can simultaneously produce an observable stochastic gravitational wave background (SGWB) and a large-scale primordial ma…

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Gravitational Waves from the Cosmic Dawn: Tracing Cosmic Black Hole Binaries with ET, LGWA and LISA

Nazanin Davari, Rosa Valiante, Alessandro Trinca, Raffaella Schneider, Riccardo Caleno, Monica Colpi, Manuel Arca Sedda, Matteo Bonetti, Alessandro Lupi, Roberto Decarli, Alberto Sesana · 2026

Next generation detectors, such as LISA, LGWA, and ET will, for the first time, probe the high redshift Universe, offering unique insight into the birth, growth, and dynamics of the first black holes …

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Thermodynamic behavior of cosmological models with fractional entropy

Miguel Cruz, Diego da Silva, Simon Gonzalez, Samuel Lepe, Joel Saavedra, Manuel Gonzalez-Espinoza · 2026

We investigate the thermodynamic and phenomenological implications of a cosmological model governed by fractional entropy applied to the apparent horizon of a flat Friedmann-Lema\^{i}tre-Robertson-Wal…

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Viable Cosmological Solutions from Hybrid Potentials

Koralia Tzanni, John Miritzis · 2026

We study flat Friedmann-Lema\^{\i}tre-Robertson-Walker (FLRW) models with a perfect fluid matter source and a scalar field minimally coupled to matter with power-law-exponential \textquotedblleft hybr…

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Mechanical Long Baseline Differential Gradiometers as Low Frequency Gravitational Wave Detectors

Enrico Calloni, Annalisa Allocca, Antonino Chiummo, Rosario De Rosa, Luciano Errico, Marina Esposito, Edoardo Imparato, Bruno Mantice, Luigi Rosa, Paolo Ruggi, Alessandra Ruggiero, Valeria Sequino, Daniela Stornaiuolo, Vittorio Tortorella, Lucia Trozzo · 2026

We present a new differential mechanical gradiometer for the detection of low-frequency Gravitational Waves. The frequency range is 0.05 to 1 Hz, a frequency gap not covered either by future space-bas…

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The CARMENES search for exoplanets around M dwarfs. A homogeneous catalogue of projected rotational velocities accounting for limb-darkening

R. Varas, G. Morello, M. Zechmeister, P. J. Amado, F. J. Pozuelos, J. A. Caballero, A. Claret, C. Cifuentes, R. Morales, A. Quirrenbach, A. Reiners, I. Ribas, V. J. S. Bejar, M. Cortes-Contreras, A. P. Hatzes, Th. Henning, I. Hermelo, H. L. Ruh, A. Schweitzer, H. M. Tabernero, M. R. Zapatero Osorio · 2026

Stellar rotation is closely linked to both age and magnetic activity. Through gyrochronology, it provides a means to estimate stellar ages and trace the evolution of planetary systems, and it is also …

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Cosmological dynamics and structure formation in a generalized mass-to-horizon entropy-inspired modified gravity

Subhra Mondal, Amitava Choudhuri · 2026

In this article, our goal is to investigate the cosmological dynamics and structure formation in a modified cosmological framework inspired by a generalized mass-to-horizon entropy relation and consis…

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Discovery of low-redshift analogues to "Little Red Dots" in DESI: A later evolutionary stage of compact LRDs?

Weiyu Ding, Xu Kong, Wei-Jian Guo, Hu Zou, Jialai Wang, Fujia Li, Hongxin Zhang, Jie Song, Jingyi Zhang, Niu Li, Wen-Xiong Li · 2026

The James Webb Space Telescope (JWST) has recently discovered a population of compact, red sources at z > 4 known as "Little Red Dots" (LRDs). They are characterized by their V-shaped continuum spectr…

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Analysis of Eruptive Prominence Plasma Parameters' Effects on the \ion{He}{2} 304~\AA\ Line with Solar Orbiter EUI Observations

Yong Zhang, Nicolas Labrosse, Sargam M. Mulay · 2026

An observation of a large prominence on the solar limb took place on February 15, 2022, by the Extreme Ultraviolet Imager (EUI) on board Solar Orbiter. We aim to determine the range of physical parame…

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Prominence Plasma Parameters Maps Inferred From Lyman $\beta$ and Lyman $\gamma$ Observations and Non-LTE Modelling

Y. Zhang, N. Labrosse, T. A. Kucera, S. Parenti · 2026

The first dedicated observation of an off-limb prominence by the Spectral Imaging of the Coronal Environment (SPICE) instrument took place on April 15, 2023. We aim to create parameter maps on the pro…

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Physics Preprint PDF DOI

Non-LTE Analysis of Pre-eruptive Prominence Plasma Parameters Effects on the Lyman-beta and Lyman-gamma Lines with Solar Orbiter SPICE Observations

Yong Zhang, Nicolas Labrosse, Susanna Parenti, Therese A. Kucera · 2026

The first dedicated observation of an off-limb prominence by Solar Orbiter took place on April 15, 2023. Our aim is to determine the range of different physical parameters of this prominence and to ex…

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