Tootfinder

Dwarf diversity in $\Lambda$CDM with baryons
Akaxia Cruz, Alyson Brooks, Mariangela Lisanti, Annika H. G. Peter, Robel Geda, Thomas Quinn, Michael Tremmel, Ferah Munshi, Ben Keller, James Wadsley
https://arxiv.org/abs/2510.11800

Dwarf diversity in $Λ$CDM with baryons
Observed rotation curves of dwarf galaxies exhibit significant diversity at fixed halo mass, challenging galaxy formation within the Cold Dark Matter (CDM) model. Previous cosmological galaxy formation simulations with baryonic physics fail to reproduce the full diversity of rotation curves, suggesting either that there is a flaw in baryonic feedback models, or that an alternative to CDM must be invoked. In this work, we use the Marvelous Massive Dwarf zoom-in simulations, a suite of high-resol…

Digital Low-Level RF system for the Linac Electronics Modernization Plan at LCLS
Nashat Sawai, Jorge Diaz Cruz, Andy Benwell, Sonya Hoobler, Qiang Du, Shreeharshini Murthy, Larry Doolittle
https://arxiv.org/abs/2510.11950

Digital Low-Level RF system for the Linac Electronics Modernization Plan at LCLS
The LCLS began operations in 2009, utilizing SLAC's normal-conducting (NC) LINAC, which features control equipment dating back to the 1960s and 1980s. The Linac Electronics Modernization Plan (LEMP) aims to replace the legacy control equipment with a system based on the open-source Marble carrier board and Zest+ digitizer board, both of which are used in the LCLS-II HE LLRF system. Adaptation of the LLRF system developed for the continuous-wave (CW) superconducting RF (SRF) LCLS-II to the short…

Cryogenic growth of aluminum: structural morphology, optical properties, superconductivity and microwave dielectric loss
Wilson J. Y\'anez-Parre\~no, Teun A. J. van Schijndel, Anthony P. McFadden, Kaixuan Ji, Susheng Tan, Yu Wu, Sergey Frolov, Stefan Zollner, Raymond W. Simmonds, Christopher J. Palmstr{\o}m
https://arxiv.org/abs/2510.0…

Cryogenic growth of aluminum: structural morphology, optical properties, superconductivity and microwave dielectric loss
We explore the molecular beam epitaxy synthesis of superconducting aluminum thin films grown on c-plane sapphire substrates at cryogenic temperatures of 6 K and compare their behavior with films synthesized at room temperature. We demonstrate that cryogenic growth increases structural disorder, producing crystalline grains that modify the optical, electrical, and superconducting properties of aluminum. We observe that cryogenic deposition changes the color of aluminum from fully reflective to y…

Far beyond the Sun: III. The magnetic cycle of $\boldsymbol\iota$ Horologii
Juli\'an D. Alvarado-G\'omez (Leibniz Institute for Astrophysics Potsdam, Germany), Gaitee A. J. Hussain (European Space Agency, The Netherlands), Eliana M. Amazo-G\'omez (Leibniz Institute for Astrophysics Potsdam, Germany), Yu Xu (Leibniz Institute for Astrophysics Potsdam, Germany, Peking University, China), Katja Poppenh\"ager (Leibniz Institute for Astrophysics Potsdam, Germany, Potsdam Un…

Far beyond the Sun: III. The magnetic cycle of $\boldsymbolι$ Horologii
We present a comprehensive investigation of the magnetic cycle of the young, active solar analogue $ι$ Horologii ($ι$ Hor) based on intensive spectropolarimetric monitoring using HARPSpol. Over a nearly three-year campaign, the technique of Zeeman-Doppler Imaging (ZDI) was used to reconstruct 18 maps of the large-scale surface magnetic field of the star. These maps trace the evolution of the magnetic field morphology over approximately 139 stellar rotations. Our analysis uncovers pronounced t…

The Impact of Aortic Valve Stenosis on Pulse Wave Morphology: An in silico study with 16,038 virtual subjects
Robert D Wilson, Sara Vardanega, Jiajie Chen, Lucas O M\"uller, Rachel E Clough, Jordi Alastruey
https://arxiv.org/abs/2509.01915

The Impact of Aortic Valve Stenosis on Pulse Wave Morphology: An in silico study with 16,038 virtual subjects
Aortic valve stenosis (AVS) presents challenges in asymptomatic detection, resulting in delayed intervention. This study aims to understand how AVS affects pulse wave (PW) morphology. A PW database of 16,038 virtual subjects aged 50 to 75 was created, representing normal physiology and varying AVS degrees. All subjects were simulated using a closed-loop one-dimensional/zero-dimensional blood flow model of the entire cardiovascular system, incorporating a four-chamber heart model capable of simu…

A planetary system with a sub-Neptune planet in the habitable zone of TOI-2093
J. Sanz-Forcada, E. Gonz\'alez-\'Alvarez, M. R. Zapatero Osorio, J. A. Caballero, V. J. S. B\'ejar, E. Herrero, C. Rodr\'iguez-L\'opez, K. R. Sreenivas, L. Tal-Or, S. Vanaverbeke, A. P. Hatzes, R. Luque, E. Nagel, F. J. Pozuelos, D. Rapetti, A. Quirrenbach, P. J. Amado, M. Blazek, I. Carleo, D. Ciardi, C. Cifuentes, K. Collins, Th. Henning, D. W. Latham, J. Lillo-Box, E. Marfil, D. Montes…

A planetary system with a sub-Neptune planet in the habitable zone of TOI-2093
Aims. We aim to confirm and measure the mass of the transiting planet candidate around the K5V star TOI-2093, previously announced by the Transiting Exoplanet Survey Satellite (TESS) project. Methods. We combined photometric data from 32 sectors between 2019 and 2024 with 86 radial velocity measurements obtained with the CARMENES spectrograph over a period of 2.4 years, along with a series of ground-based, broadband photometric monitoring campaigns to characterize the host star and the transiti…

A shear cell study on oral and inhalation grade lactose powders
Giulio Cavalli, Roberto Bosi, Alessandro Ghiretti, Ciro Cottini, Andrea Benassi, Roberto Gaspari
https://arxiv.org/abs/2508.16786

A shear cell study on oral and inhalation grade lactose powders
Shear cell tests have been conducted on twenty different lactose powders, most of which commercially available for oral or inhalation purposes, spanning a wide range of particle sizes, particle morphologies, production processes. The aims of the investigation were: i) to verify the reliability of the technique in evaluating and classifying the flowability of powders; ii) to understand the connection between the flowability of a powder and the morphological properties of its particles; iii) to f…

Using Symbolic Regression to Emulate the Radial Fourier Transform of the S\'ersic profile for Fast, Accurate and Differentiable Galaxy Profile Fitting
Tim B. Miller, Imad Pasha
https://arxiv.org/abs/2508.20266

Using Symbolic Regression to Emulate the Radial Fourier Transform of the Sérsic profile for Fast, Accurate and Differentiable Galaxy Profile Fitting
Galaxy profile fitting is a ubiquitous technique that provides the backbone for photometric and morphological measurements in modern extragalactic surveys. A recent innovation in profile fitting algorithms is to render, or create, the model profile in Fourier space, which aims to provide faster and more accurate results. However, the most common parameterization, the Sérsic profile, has no closed form Fourier transform, requiring the use of computationally expensive approximations. In this pap…

Tidal Tails in Open Clusters I. Morphology, Binary Fraction, Dynamics, and Rotation
Ira Sharma, Vikrant V. Jadhav, Annapurni Subramaniam, Henriette Wirth
https://arxiv.org/abs/2508.19457

Tidal Tails in Open Clusters I. Morphology, Binary Fraction, Dynamics, and Rotation
Context: This research presents unsupervised machine learning and statistical methods to identify and analyze tidal tails in open star clusters using data from the Gaia-DR3 catalog. Aims: We aim to identify member stars, detect and analyze tidal tails in five open clusters, BH 164, Alessi 2, NGC 2281, NGC 2354, and M67, of ages between 60 Myr and 4 Gyr. These clusters were selected based on the previous evidence of extended tidal structures. Methods: We utilized machine learning algorithms such…

Early Planet Formation in Embedded Disks (eDisk). XX: Constraining the Chemical Tracers of Young Protostellar Sources
Rajeeb Sharma, Jes K. J{\o}rgensen, Merel L. R. van 't Hoff, Jeong-Eun Lee, Yuri Aikawa, Sacha Gavino, Yao-Lun Yang, Nagayoshi Ohashi, John J. Tobin, Patrick M. Koch, Zhi-Yun Li, Leslie W. Looney, Mayank Narang, Suchitra Narayanan, Travis J. Thieme