Tootfinder

No evidence of intrinsic linear polarization in Nova Vel 2025 (V572 Vel)
Isabel J. Lima, Marina M. C. Mello, Claudia V. Rodrigues, G. Juan M. Luna, Francisco Jablonski, Fernando Falkenberg
https://arxiv.org/abs/2509.01489

No evidence of intrinsic linear polarization in Nova Vel 2025 (V572 Vel)
We report on polarimetric observations of V572 Vel (Nova Vel 2025) conducted on June 26th and July 21st, 2025, shortly after its nova eruption was discovered. Our measurements in the I$_C$ band revealed an average linear polarization of 1.60$\pm$0.03\% at position angle of 132.2\degr. To distinguish between intrinsic and interstellar polarization, we also measured 86 field stars in the nova's vicinity, finding an average polarization of 1.25$\pm$0.61\% at a nearly identical position angle of 13…

Re-accretion of Giant Impact Ejecta Can Drive Significant Atmospheric Erosion on Terrestrial Planets
Tuhin Ghosh, Mark Wyatt, Oliver Shorttle
https://arxiv.org/abs/2509.22785 ht…

Re-accretion of Giant Impact Ejecta Can Drive Significant Atmospheric Erosion on Terrestrial Planets
Giant impacts, the collisions between planetary embryos, play a crucial role in sculpting the planets and their orbital architectures. Numerical simulations have advanced our understanding of these events, enabling estimations of mass and atmospheric loss during the primary impacts. However, high computational costs have restricted investigations to the immediate aftermath, limiting our understanding of the longer-term consequences. In this study, we investigate the effect of re-accretion of gi…

On Aug. 1, shortly after the Bureau of Labor Statistics released a surprisingly weak employment report,
the conservative economist E.J. Antoni joined Steve Bannon’s influential “War Room” podcast.
“Have we put in our own person into B.L.S.?” Mr. Bannon asked Dr. Antoni.
“Is a MAGA Republican, that President Trump knows and trusts, are they running the Bureau of Labor Statistics yet?”
“No, unfortunately, Steve, we still haven’t gotten there,” Dr. Antoni replied,
go…

Trump’s Pick of E.J. Antoni as BLS Leader Criticized by the Right and the Left
Economists on the left and right criticized E.J. Antoni for misunderstanding the data he would now oversee.

The New Status Qvo? SN 2021qvo is Another 2003fg-like Type Ia Supernova with a Rising Light-Curve Bump
I. A. Abreu Paniagua, W. B. Hoogendam, D. O. Jones, G. Dimitriadis, R. J. Foley, C. Gall, J. O'Brien, K. Taggart, C. R. Angus, K. Auchettl, D. A. Coulter, K. W. Davis, T. de Boer, A. Do, H. Gao, L. Izzo, C. -C. Lin, T. B. Lowe, Z. Lai, R. Kaur, M. Y. Kong, A. Rest, M. R. Siebert, S. K. Yadavalli, Y. Zenati, Q. Wang

The New Status Qvo? SN 2021qvo is Another 2003fg-like Type Ia Supernova with a Rising Light-Curve Bump
In recent years, multiple Type Ia supernovae (SNe Ia) have been observed with "bumps" in their rising light curves shortly after explosion. Here, we present SN 2021qvo: a SN Ia that exhibits a clear early bump in photometry obtained by the Young Supernova Experiment. Photometric and spectroscopic observations of SN 2021qvo show that it has a broader light curve, higher peak luminosity, shallower Si II $λ$5972 pseudo-equivalent width, and lower ejecta velocities than normal SNe Ia, which are al…

Kinematical Lie algebras and symplectic symmetric spaces I: Lie algebraic aspects
Pierre Bieliavsky, Nicolas Boulanger
https://arxiv.org/abs/2508.10565 https://

Kinematical Lie algebras and symplectic symmetric spaces I: Lie algebraic aspects
We generalize the notion of kinematical Lie algebra introduced in physics for the classification of the various possible relativity algebras an isotropic spacetime can accommodate. We first give an elementary proof of the fact that such a generalized kinematical Lie algebra $\mathfrak{g}$ always carries a canonical structure of symplectic involutive Lie algebra (shortly ``siLa''). In other words, if $G$ is a connected Lie group admitting $\mathfrak{g}$ as Lie algebra, there always exists a Li…

Enhanced Radio Emission Between a Galaxy Cluster Pair
Andrea Botteon, Turgay Caglar, Sibel D\"oner, Reinout J. van Weeren, Krista Lynne Smith
https://arxiv.org/abs/2509.14348

Enhanced Radio Emission Between a Galaxy Cluster Pair
Interacting galaxy cluster pairs offer a unique opportunity to study the properties of the gas in the intracluster bridge connecting them. As a consequence of the encounter, both the X-ray and radio emission from the gas are expected to be enhanced by shocks and turbulence, facilitating their detection. PSZ2 G279.79+39.09 is likely an off-axis merging system at $z = 0.29$, with its two main components observed shortly after pericenter passage. In this paper, we investigate the presence of diffu…

The electromagnetic field in Poisson gauge theory: the groupoidal approach
Fabio Di Cosmo, Vladislav G. Kupriyanov, Patrizia Vitale
https://arxiv.org/abs/2510.04858 https://

The electromagnetic field in Poisson gauge theory: the groupoidal approach
We consider the problem of defining the field strength of abelian potentials when the spacetime is a Poisson manifold, within the groupoidal approach. The natural definition in terms of gauge invariant momenta is proved to be equivalent to covariant and invariant tensors of a local symplectic groupoid representing a symplectic realization of the Poisson manifold. A Poisson Chern-Simons model is then proposed and its equations of motion are shortly discussed.

On The Orbital Evolution of Multiple Wide Super-Jupiters: How Disk Migration and Dispersal Shape the Stability of The PDS 70 System
Clarissa R. Do \'O, Jaehan Bae, Quinn M. Konopacky, Jayke S. Nguyen, Patrick Diamond, Krzysztof Go\'zdziewski, Dawid Jankowski
https://arxiv.org/abs/2510.11021…

On The Orbital Evolution of Multiple Wide Super-Jupiters: How Disk Migration and Dispersal Shape the Stability of The PDS 70 System
Direct imaging has revealed exoplanet systems hosting multiple wide-orbit Super-Jupiters, where planet-planet interactions can shape their long-term dynamical evolution. These strong perturbations may lead to orbital instability, raising questions about the long-term survival of such systems. Shortly after formation, planet-disk interactions can shepherd planets into mean-motion resonances, which may promote long-term stability as seen in HR 8799. However, early-stage processes such as disk pho…