Tootfinder

The Diversity of Metal-Enrichment and Abundance Patterns at High Redshift: A Magellan Survey of Gas-rich Galaxies Traced by Damped Lyman-alpha Absorbers at z~5
Jianghao Huyan, Varsha P. Kulkarni, Suraj Poudel, Nicolas Tejos, Celine Peroux, Sebastian Lopez
https://arxiv.org/abs/2508.02940

The Diversity of Metal-Enrichment and Abundance Patterns at High Redshift: A Magellan Survey of Gas-rich Galaxies Traced by Damped Lyman-alpha Absorbers at z~5
A powerful technique to trace the signatures of the first stars is through the metal enrichment in concentrated reservoirs of hydrogen, such as the damped Lyman-alpha absorbers (DLAs) in the early universe. We conducted a survey aimed at discovering DLAs along sight lines to high-z quasars in order to measure element abundances at z>4. Here we report our first results from this survey for 10 DLAs with redshifts of ~4.2-5.0. We determine abundances of C, O, Si, S, and Fe, and thereby the metalli…

The effects of continuum fitting on Lyman-$\alpha$ forest correlations
Nicolas Busca, James Rich, Julian Bautista, Andrei Cuceu, Andreu Font-Ribera, Julien Guy, Hiram K. Herrera-Alcantar, Julianna Stermer, Christophe Balland, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, T. Claybaugh, A. de la Macorra, P. Doel, S. Ferraro, J. E. Forero-Romero, E. Gazta\~naga, C. Gordon, G. Gutierrez, M. Ishak, R. Kehoe, D. Kirkby, A. Kremin, M. Landriau, L. Le Guillou, C. Magneville, P. Martini, R. Miqu…

The effects of continuum fitting on Lyman-$α$ forest correlations
Correlations of fluctuations of the flux in Lyman-$α$ forests of high-redshift quasars have been observed by the Baryonic Acoustic Oscillation Spectroscopy Survey (BOSS) and the Dark Energy Spectroscopy Instrument (DESI) survey where they have revealed the effects of baryon acoustic oscillations (BAO). In order to fit the correlation functions to a physical model and thereby constrain cosmological parameters, it is necessary to take into account the effects of fitting the observed spectra to a…

An integrated theoretical, experimental, and numerical study of small-amplitude water waves
Lennon \'O N\'araigh, Nicolas Farault, Nicola Young
https://arxiv.org/abs/2507.18403

An integrated theoretical, experimental, and numerical study of small-amplitude water waves
We introduce an inexpensive experimental setup for analyzing free-surface water waves: a $1\,\mathrm{m}$-long tabletop flume made from perspex, driven by a variable-frequency piston wavemaker built from Lego. Using mobile-phone video capture, we collect experimental data and compare it with predictions from linear gravity-capillary wave theory and with multiphase simulations performed in OpenFOAM. We find excellent quantitative agreement across all three approaches. Our setup may be valuable fo…

Modelling gyrosynchrotron emission from coronal energetic electrons in a CME flux rope
Edin Husidic, Nicolas Wijsen, Immanuel Christopher Jebaraj, Angelos Vourlidas, Luis Linan, Rami Vainio, Stefaan Poedts
https://arxiv.org/abs/2507.16449

Modelling gyrosynchrotron emission from coronal energetic electrons in a CME flux rope
Solar flares and coronal mass ejections (CMEs) can accelerate electrons, causing bursts such as type IV emissions in the solar radio continuum. Although radio spectroscopy is a powerful diagnostic tool for the corona, the origin and mechanisms of type IV bursts remain uncertain. In situ measurements can occasionally shed some light on these mechanisms, but they are limited in space and time. Sophisticated numerical modelling offers the best approach to improve our understanding of the physical …

Fast and Fewrious: Stochastic binary perturbations from fast compact objects
Badal Bhalla, Benjamin V. Lehmann, Kuver Sinha, Tao Xu
https://arxiv.org/abs/2507.16894

Fast and Fewrious: Stochastic binary perturbations from fast compact objects
Massive compact objects soften binaries. This process has been used for decades to constrain the population of such objects, particularly as a component of dark matter (DM). The effects of light compact objects, such as those in the unconstrained asteroid-mass range, have generally been neglected. In principle, low-energy perturbers can harden binaries instead of softening them, but the standard lore is that this effect vanishes when the perturber velocities are large compared to the binary's o…

MUSEQuBES: The Column Density, Covering Fraction, Mass, and Environmental Dependence of Cool HI Gas Around Low-Redshift Galaxies
Sayak Dutta, Sowgat Muzahid, Joop Schaye, Sean Johnson, Nicolas F. Bouche, Ramona Augustin, Sebastiano Cantalupo, Hsiao-Wen Chen, Martin Wendt
https://arxiv.org/abs/2507.22283

MUSEQuBES: The Column Density, Covering Fraction, Mass, and Environmental Dependence of Cool HI Gas Around Low-Redshift Galaxies
We investigate cool HI gas traced by Lyman series absorption in the vicinity of 256 galaxies (median stellar mass, log10(M*/Msun) = 8.7 and median redshift, z = 0.48) using 15 background quasars (median impact parameter, D ~ 140 physical kpc (pkpc)), as part of the MUSE Quasar-fields Blind Emitters Survey (MUSEQuBES). We find that the HI column density (N(HI)) profile around isolated, star-forming galaxies, which span ~ 3 dex in stellar mass, is well described by a power law with a slope of ~ -…

Differential Crosslinking and Contractile Motors Drive Nuclear Chromatin Compaction
Ligesh Theeyancheri, Edward J. Banigan, J. M. Schwarz
https://arxiv.org/abs/2507.17883 https:…

Differential Crosslinking and Contractile Motors Drive Nuclear Chromatin Compaction
During interphase, a typical cell nucleus features spatial compartmentalization of transcriptionally active euchromatin and repressed heterochromatin domains. In conventional nuclear organization, euchromatin predominantly occupies the nuclear interior, while heterochromatin, which is approximately 50% more dense than euchromatin, is positioned near the nuclear periphery. Peripheral chromatin organization can be further modulated by the nuclear lamina, which is itself a deformable structure. Wh…

Replaced article(s) found for q-bio.BM. https://arxiv.org/list/q-bio.BM/new
[1/1]:
- Large-Scale Multi-omic Biosequence Transformers for Modeling Protein-Nucleic Acid Interactions
Sully F. Chen, Robert J. Steele, Glen M. Hocky, Beakal Lemeneh, Shivanand P. Lad, Eric K. Oermann…

Unveiling prethermalization and thermal processes through the simplest one-dimensional topological model
Guowen Yang, Jiale Wang, Yichuan Chen, Limin Song, Shiqi Xia, Daohong Song, Zhigang Chen, Nikolaos K. Efremidis
https://arxiv.org/abs/2507.04101

Unveiling prethermalization and thermal processes through the simplest one-dimensional topological model
Drawing on classical thermodynamic principles-such as the equipartition of energy and entropy maximization-extensive research has shown that the evolution of optical power in multimode optical systems tends toward a Rayleigh-Jeans distribution at thermal equilibrium. Understanding of the processes associated with the thermalization dynamics are of fundamental importance in analyzing and controlling such complex systems. In this work, we utilize a one-dimensional Su-Schrieffer-Heeger lattice as …

QSO MUSEUM III: the circumgalactic medium in Ly$\alpha$ emission around 120 $z\sim3$ quasars covering the SDSS parameter space. Witnessing the instantaneous AGN feedback on halo scales
Jay Gonz\'alez Lobos, Fabrizio Arrigoni Battaia, Aura Obreja, Guinevere Kauffmann, Emanuele Paolo Farina, Tiago Costa
https://arxiv.org/abs/2…

QSO MUSEUM III: the circumgalactic medium in Ly$α$ emission around 120 $z\sim3$ quasars covering the SDSS parameter space. Witnessing the instantaneous AGN feedback on halo scales
Recent surveys show that $z>2$ quasars are surrounded by Hydrogen Lyman-$α$ (Ly$α$) glows with diverse emission levels and extents. These seem to depend on the activity of embedded quasars, the number of active galactic nucleus (AGN) photons able to reach the halo gas or circumgalactic medium (CGM) and the physical properties of the CGM. In this framework, we present VLT/MUSE snapshot observations (45 min/source) of 59 $z\sim3$ quasars extending the long-term QSO MUSEUM campaign to fainter SD…