Tootfinder

Hydrostatic and explosive $\alpha$-element chemical abundances of Milky Way globular clusters, halo substructures, and satellite galaxies
Danny Horta, Melissa K. Ness
https://arxiv.org/abs/2506.08079

Hydrostatic and explosive $α$-element chemical abundances of Milky Way globular clusters, halo substructures, and satellite galaxies
Stellar atmospheric element abundance ratios of stars retain information about their birth conditions, helping elucidate their origin and nature. In this letter, we analyse and contrast the hydrostatic and explosive $α$-element abundance ratios, and the ratio of the two (the hex ratio), for a large sample of Galactic globular clusters (GCs), halo substructures, satellite galaxies, and the Milky Way high-/low-$α$ discs using data from the $APOGEE$ survey. Our results show that: $i$) Milky Way …

1D YIG hole-based magnonic nanocrystal
K. O. Levchenko, K. Dav\'idkov\'a, R. O. Serha, M. Moalic, A. A. Voronov, C. Dubs, O. Surzhenko, M. Lindner, J. Panda, Q. Wang, O. Wojewoda, B. Heinz, M. Urb\'anek, M. Krawczyk, A. V. Chumak
https://arxiv.org/abs/2506.10591

1D YIG hole-based magnonic nanocrystal
Magnetic media with artificial periodic modulation-magnonic crystals (MCs) - enable tunable spin-wave dynamics and band structure engineering. Nanoscaling enhances these capabilities, making magnonic nanocrystals promising for both fundamental studies and applications. Here, we report on the design, fabrication, and characterization of one-dimensional YIG MCs with nanoholes ($d \approx $ 150 nm) spaced $a \approx 1 μ$m apart. Micro-focused Brillouin light scattering and propagating spin-wave s…

Die meisten der jüngeren hier, werden ihn wohl nicht kennen. Aber es ist ein Urgestein des NDR vor paar Tagen im Alter von 81 Jahren verstorben. Nämlich Carlo von Tiedemann.
https://www.ndr.de/nachrichten/hamburg/Emotionale…

Trauer um Carlo von Tiedemann: Emotionale Reaktionen auf den Tod des NDR Moderators
Auf den Tod des NDR Moderators Carlo von Tiedemann haben viele Menschen mit Mitgefühl und großem Respekt reagiert. Kolleginnen und Kollegen würdigten ihn als herausragenden Radiomacher und Entertainer. Er war am Pfingstsonntag im Alter von 81 Jahren in Hamburg gestorben.

♫ Top 5 artists of the Last.week: 竹内まりや (2) Da Hool (1) Flyleaf (1) Malugi (1) Mono No Aware (1). #myweekcounted 9 Scrobbles with Lastfm #music via @…

This https://arxiv.org/abs/2502.12687 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Black Hole Chemistry Knows Extra Dimensions
: In this note, we study an extra dimension effect on the black hole chemistry in the 8-dimensional Einstein-Yang-Mills-Maxwell theory. The base spacetime contains 4- dimensional compact manifolds and an instanton on top of those. We demonstrate how the extra dimensions affect the phase transition and viable black hole sizes in the 4-dimensional Einstein frame through the black hole chemistry. We focus on asymptotically anti-de Sitter spacetimes for the effective 4-dimensional model obtained by…

ad202 Omas Pi-hole
https://audiodump.de/2025/05/22/ad202-omas-pi-hole/
Spitzenkandidat Johnny fordert: AudioDump für Deutschland! In Udos Panik-Porsche jagen wir von Thema zu Thema, besuchen tolle Parks, pömpeln und saugen die Dose mit Feststoffverdampfer. Mal…

ad202 Omas Pi-hole -
Spitzenkandidat Johnny fordert: AudioDump für Deutschland! In Udos Panik-Porsche jagen wir von Thema zu Thema, besuchen tolle Parks, pömpeln und saugen die Dose mit Feststoffverdampfer. Malik hasst Drogen, aber für Geld kann man seine ideale ja mal über Bord werfen. Er will aber lieber spritzen als dampfen (es ist bei ihm wie bei der Bibel: einfach wörtlich nehmen). Endlich kommt Flowinho und rettet die Sendung mit Cybersecurity und AI-Themen, denn merke: alle Podcasts stehen still, wenn e…

The Highest-Energy Neutrino Event Constrains Dark Matter-Neutrino Interactions
Toni Bert\'olez-Mart\'inez, Gonzalo Herrera, Pablo Mart\'inez-Mirav\'e, Jorge Terol Calvo
https://arxiv.org/abs/2506.08993

The Highest-Energy Neutrino Event Constrains Dark Matter-Neutrino Interactions
Dark Matter-neutrino interactions affect the propagation of astrophysical neutrinos, attenuating the flux of neutrinos arriving at Earth. Using the highest-energy neutrino event detected to date by the KM3NeT collaboration as an example, and assuming an extragalactic origin, we derive limits on these interactions at $E_ν= 220^{+570}_{-110}\, \mathrm{PeV}$. Considering only the propagation on the Milky Way Dark Matter halo, we constrain the interaction cross section over the mass of the Dark Ma…

The DECam Field of Streams: a deep view of the Milky Way halo
Peter Ferguson, Nora Shipp
https://arxiv.org/abs/2506.05469 https://arx…

The DECam Field of Streams: a deep view of the Milky Way halo
We present a Field of Streams visualizing stellar structures in the Milky Way halo as viewed by the Dark Energy Camera (DECam). We use $g$- and $r$-band imaging from the Dark Energy Survey and the DECam Legacy Survey, covering $18{,}700 °^2$ across the sky. Using an isochrone-based matched filter in $g$ vs. $g-r$, we select old and metal-poor stars in three distance bins, and generate a false-color RGB image of the number density of selected stars. The DECam Field of Streams shows a variety of…

This https://arxiv.org/abs/2501.13861 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Study of Various Dark Matter Halo Profiles in Milky Way and M31 Galaxies within the Standard Cosmology Framework
In this paper, we study the rotation curves of the Milky Way galaxy (MW) and Andromeda galaxy (M31) by considering their bulge, disk, and halo components. We model the bulge region by the widely accepted de Vaucouleur's law and the disk region by the well-established exponential profile. In order to understand the distribution of dark matter in the halo region, we consider three different dark matter profiles in the framework of the standard $Λ$CDM model, namely, Navarro-Frenk-White (NFW), Her…

Survivors and Zombies: The Quenching and Disruption of Satellites around Milky Way Analogs
Debosmita Pathak, Charlotte R. Christensen, Alyson M. Brooks, Ferah Munshi, Anna C. Wright, Courtney Carter
https://arxiv.org/abs/2505.22742

Survivors and Zombies: The Quenching and Disruption of Satellites around Milky Way Analogs
It is necessary to understand the full accretion history of the Milky Way in order to contextualize the properties of observed Milky Way satellite galaxies and the stellar halo. This paper compares the dynamical properties and star-formation histories of surviving and disrupted satellites around Milky Way-like galaxies using the DC Justice League suite of very high-resolution cosmological zoom-in simulations of Milky Way analogs and their halo environments. We analyze the full census of galaxie…