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๐Ÿ” jaak simm ๐Ÿ“‚ Physics
Showing 5613 results for "jaak simm" in Physics
Physics Preprint PDF DOI

On the polarization position angle jumps in FRB 20240114A

Ninisha Manaswini, Dante M. Hewitt, Laura G. Spitler, Jason W. T. Hessels, Ramesh Karuppusamy, Jeff Huang, Pranav Limaye, Lucas Guillemot, Ismael Cognard ยท 2026

Fast radio bursts (FRBs), thought to originate from magnetars, exhibit diverse polarization properties that constrain their emission physics and local magneto-ionic environments. The polarization posiโ€ฆ

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Physics Preprint PDF DOI

Geometric-Configuration Modulation: A Novel Free-Space Optical Communication Paradigm for $D/r_{0}\sim 5$ Turbulence Resistance

Yu-Ming Bai, Ming-Han Ding, Yu-Xuan Liu, Jun-Lin Li ยท 2026

We propose Geometric-Configuration Modulation (GM), a novel AO-free FSO paradigm utilizing multi-source geometric configuration encoding and active correlative decoding. GM demonstrates exceptional reโ€ฆ

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Double-Peaked Ly$\alpha$ Emission during Reionization Requires Nearby Voids and a Favorable Local Ionizing Background

Hyunbae Park, Aaron Smith, Intae Jung, Hidenobu Yajima, Pierre Ocvirk, Joseph S. W. Lewis, Luke Conaboy, Paul R. Shapiro, Ilian T. Iliev, Kyungjin Ahn, Joohyun Lee, Jenny G. Sorce, Yohan Dubois ยท 2026

Several Lyman-alpha (Ly$\alpha$) emitters deep into the reionization era exhibit double-peaked Ly$\alpha$ emission profiles, raising the question of how the intergalactic medium can transmit photons bโ€ฆ

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Resolved Maps of Gas and Dust in a Massive Quiescent Galaxy at z=2 from INQUEST-JWST: Evidence of Accretion and Rejuvenation

Sai Gangula, Andrew B. Newman, Meng Gu, Sirio Belli, Katherine E. Whitaker, Tania M. Barone, Aliza Beverage, Andrea Bolamperti, Letizia Bugiani, Richard S. Ellis, Mariska Kriek, Allison Matthews, Themiya Nanayakkara ยท 2026

Quiescent galaxies in the distant universe exhibit a range of gas content that may indicate a variety of quenching processes are at play. Mapping the distribution and kinematics of the gas can illuminโ€ฆ

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Long-time asymptotics of the Newell equation on the line

Deng-Shan Wang, Yingmin Yang ยท 2026

In 1978, A. C. Newell [SIAM J. Appl. Math. 35(4) (1978) 650-664] proposed an exactly solvable model called Newell equation, which simulates the investigation of significant interaction mechanism betweโ€ฆ

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Environmental dependence of the Mass-Metallicity Star Formation Relations at z=4-10 with JWST

Qiong Li, Christopher J. Conselice, Lewi Westcott, Duncan Austin, Tom Harvey, Nathan Adams, Vadim Rusakov, James Arcidiacono, Caio Moreira Goolsby, Chandana Hegde, Shuqi Fu ยท 2026

We study how environment affects the mass-metallicity relation (MZR) at $z=4$-$10$ using deep imaging and spectroscopy from the James Webb Space Telescope (JWST). Combining CEERS and JADES, we compileโ€ฆ

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Mapping the Milky Way with Gaia Bp/Rp spectra-IV: the broken and asymmetric density profile of the stellar disk traced by a large sample of red clumps

Wenbo Wu, Yuqin Chen, Jianhui Lian, Martin Lopez-Corredoira, Chengdong Li, Xianhao Ye, C. Allende Prieto, Xiang-Xiang Xue, Gang Zhao, Jingkun Zhao, David S. Aguado, Jonay I. Gonzalez Hernandez, Rafael Rebolo ยท 2026

This study explores the density profile of the stellar disk, radially and azimuthally, based on approximately 8.4 million red clump stars selected from Gaia Bp/Rp spectra. After correcting for selectiโ€ฆ

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

Dan Zhang, Shulan Li, Guoyang Fu, Jian-Pin Wu ยท 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, wโ€ฆ

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A Quasar--Companion System Without AGN Outflow at $z \sim 6$: The Case of PSO J083+11

Muhammad Akmal Husain, Irham Taufik Andika, Mochamad Ikbal Arifyanto ยท 2026

PSO J083.8371+11.8482, a quasar at $z = 6.34$ with a nearby companion galaxy, provides an opportunity to study the impact of active galactic nucleus (AGN) activity on the surrounding environment durinโ€ฆ

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An Extended Parametric Model for Self-interacting Dark Matter Halos

Siddhesh Raut, Ethan Nadler, Andrew Benson ยท 2026

We improve upon the parametric model for the evolution of the density profiles of self-interacting dark matter (SIDM) halos introduced in Yang et al. (2024b), by considering the effects of mass accretโ€ฆ

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VLTI-GRAVITY measurements of cool evolved stars: II. Pulsation properties and mass-loss process of the Mira star R Car and the red supergiant VX Sgr

D. Jadlovsky, M. Wittkowski, A. Chiavassa, K. Kravchenko, B. Freytag, S. Hofner, J. Krticka, C. Paladini, G. Rau, M. Broz, T. Granzer, M. Weber ยท 2026

The mass-loss process of red supergiant (RSG) and asymptotic giant branch (AGB) stars and its relation to variability is poorly constrained. We study two evolved stars, the Mira-type AGB star R Car anโ€ฆ

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Decomposing Fractional Quantum Hall Wave Functions via Operator Contraction Multiplication

Dong-Hao Guan, Licheng Wang, Yuan Zhou, Ai-Lei He, Yi-Fei Wang ยท 2026

We develop a general algebraic scheme to decompose fractional quantum Hall (FQH) wave functions based on the operator contraction multiplication. By introducing fermionic and bosonic operators and estโ€ฆ

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Bayesian Inference of Dense-Matter Equations of State from Small-Radius Compact Stars with Twin-Star Scenarios

Xieyuan Dong, Hong Shen, Jinniu Hu, Ying Zhang ยท 2026

We investigate dense-matter equations of state (EOSs) within a Bayesian framework, with particular emphasis on whether recent small-radius compact-star candidates can be accommodated in a twin-star scโ€ฆ

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On non-relativistic integrable models and 4d SCFTs

Rotem Ben Zeev, Anirudh Deb, Hee-Cheol Kim, Shlomo S. Razamat ยท 2026

We elaborate on the relation between the generalized Schur index of $N=2$ SCFTs in four dimensions and the non-relativistic limit of the elliptic Ruijsenaars-Schneider model. In particular we discuss โ€ฆ

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Breaking the UV Luminosity Function Degeneracy:Self-Interacting Dark Matter Constraints from Reionization Topology

Zihan Wang, Huanyuan Shan ยท 2026

Self-interacting dark matter (SIDM) is the leading framework resolving small-scale cold dark matter (CDM) crises, yet high-redshift SIDM constraints are fundamentally limited by degeneracies between dโ€ฆ

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Indistinguishablity from dephased emitters using combined plasmonic-dielectric cavities

Anastasios Fasoulakis, Ross C. Schofield, Rupert F. Oulton, Alex S. Clark ยท 2026

The concept of cavity funneling has emerged recently as a promising route towards creating indistinguishable photons from highly dephased emitters. So far, all suggested solutions are solely based on โ€ฆ

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Cosmological constraints from the small scale clustering of Emission Line Galaxies

Sara Ortega-Martinez, Raul E. Angulo, Sergio Contreras, Jonas Chaves-Montero, Matteo Zennaro, Sownak Bose, Boryana Hadzhiyska, Cesar Hernandez-Aguayo, Lars Hernquist, Volker Springel ยท 2026

Spectroscopic surveys such as the Dark Energy Spectroscopic Instrument (DESI) and Euclid are mapping the spatial distribution of millions of galaxies, with Emission Line Galaxies (ELGs) serving as theโ€ฆ

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Electrochemical reactions under reverse bias create additional mobile ions that enable hole tunneling in metal halide perovskite diodes

Kell Fremouw, Ryan A. DeCrescent, Xianfu Zhang, Yi Yang, Bin Chen, Daniel A. Morales Jr, Matteo R. S. Poma, Kelly Schutt, Fangyuan Jiang, Edward H. Sargent, Neal R. Armstrong, David S. Ginger, Joseph M. Luther, Michael D. McGehee ยท 2026

Gradual reverse-bias breakdown in metal-halide perovskite diodes and solar cells is thought to originate from hole tunneling through steep bands in an ionic depletion region near the electron transporโ€ฆ

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Testing $\Lambda$CDM versus dynamical dark energy in one year: A DESI spectroscopic follow-up program for Rubin supernovae

Jannik Truong, Greg Aldering, Saul Perlmutter, David Rubin, David Schlegel ยท 2026

Combined cosmological probes currently indicate that best-fit values in the $w_0-w_a$ parametrization of dynamical dark energy deviate from $\Lambda$CDM by $\sim3\sigma$. In this work, we present a suโ€ฆ

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Other red dots: A possible GLIMPSE of normal AGB stars at Cosmic Noon through extreme lensing

Lukas J. Furtak, Adi Zitrin, Erik Zackrisson, Vasily Kokorev, Anthony J. Taylor, Joseph F. V. Allingham, John Chisholm, Jose M. Diego, Hakim Atek, Kristen B. W. McQuinn, Ryan Endsley, Richard Pan, Gabriel Brammer, Qinyue Fei, Seiji Fujimoto, Tiger Y.-Y. Hsiao, Patrick L. Kelly, Damien Korber, Ashish K. Meena, Rohan P. Naidu, Alberto Saldana-Lopez ยท 2026

We report the discovery of four extremely faint ($m_{\mathrm{F444W}}\gtrsim29$) red point sources in recent ultra-deep JWST/NIRCam images of the strong lensing galaxy cluster Abell S1063. All four souโ€ฆ

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