Tootfinder

Test Roll No. 2 of an Ilford HP4 120, ceased production at 1976, Super Ikonta 533/16, “scanned” by my iPhone
一卷用蔡司超级伊康塔533/16拍摄的Ilford HP4 120, 1976年停产。用iPhone翻拍玩玩，扫描仪扫不了120
#filmphotography #Photography

Exploring the habitability and interior composition of exoplanets lying within the extended habitable zone
Sushmita Deb, Kaushal Sharma, Samrat Biswas, Biman Jyoti Medhi
https://arxiv.org/abs/2507.04440

Exploring the habitability and interior composition of exoplanets lying within the extended habitable zone
Studying the habitability, internal structure and composition of exoplanets is crucial for understanding their potential to sustain life beyond our solar system. Characterizing planetary structures and atmospheric evolution provides valuable insights into surface conditions and the long-term habitability of these planets. In this study, we present a comprehensive analysis of exoplanets spanning from super-Earths to mini-Neptunes ($R_{\textrm{p}}$ $\leq$ 4 $R_{\oplus}$ and $M_{\textrm{p}}$ $\leq…

Parsec-scale SiO emission in the Galactic Center
N. Wenner, C. J. Chandler, J. M. Michail, M. Gorski, J. Braatz
https://arxiv.org/abs/2507.06347 https://…

Parsec-scale SiO emission in the Galactic Center
The central 5 parsecs of our Galactic Center is rich in various molecular tracers. The region is observed to be hot, highly ionized, and volatile, resulting in complex chemistry and kinematics. Countless molecular observations of the central region orbiting the central super-massive black hole Sgr A* have revealed a stable grouping of clouds with a disk-like structure known as the circumnuclear disk (CND) orbiting Sgr A* between 1.5 and 3 pc. The CND houses the densest population of gas outside…

Geometric Landau Analysis and Symbol Bootstrap
Dmitry Chicherin, Johannes Henn, Elia Mazzucchelli, Jaroslav Trnka, Qinglin Yang, Shun-Qing Zhang
https://arxiv.org/abs/2508.05443

Geometric Landau Analysis and Symbol Bootstrap
We investigate how the positive geometry framework for loop integrands in $\mathcal{N}{=}4$ super Yang-Mills theory constrains the structure of the integrated answers. This is done in the context of a geometric expansion of Wilson loops with a Lagrangian insertion, called negative geometries, extending ideas previously used for scattering amplitudes related to the Amplituhedron. The procedure we adopt combines the knowledge of all maximal codimension boundaries of the geometry, which characteri…

Inverse harmonic clustering for multi-pitch estimation: an optimal transport approach
Anton Bj\"orkman, Filip Elvander
https://arxiv.org/abs/2508.02471 https://

Inverse harmonic clustering for multi-pitch estimation: an optimal transport approach
In this work, we consider the problem of multi-pitch estimation, i.e., identifying super-imposed truncated harmonic series from noisy measurements. We phrase this as recovering a harmonically-structured measure on the unit circle, where the structure is enforced using regularizers based on optimal transport theory. In the resulting framework, a signal's spectral content is simultaneously inferred and assigned, or transported, to a small set of harmonic series defined by their corresponding fund…

Triggering Electron Capture Supernovae: Dark Matter Effects in Degenerate White-Dwarf-like Cores of Super-Asymptotic Giant Branch Stars
Vishal Parmar, Domenico Scordino, Ignazio Bombaci
https://arxiv.org/abs/2507.19320

Triggering Electron Capture Supernovae: Dark Matter Effects in Degenerate White-Dwarf-like Cores of Super-Asymptotic Giant Branch Stars
Electron-capture supernovae (ECSNe) have emerged as a compelling formation channel for low-mass neutron stars, bolstered by decades of theoretical work and increasingly supported by observational evidence, including the recent identification of SN~2018zd. Motivated by this, we investigate the influence of fermionic asymmetric dark matter (ADM) on the equilibrium structure of progenitor cores and the formation of their neutron star remnants. Using a general relativistic two-fluid formalism, we m…

This https://arxiv.org/abs/2503.04559 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Presymplectic BV-AKSZ for $N=1$, $D=4$ Supergravity
We elaborate on the presymplectic BV-AKSZ approach to supersymmetric systems. In particular, we construct such a formulation for the $N=1$, $D=4$ supergravity by taking as a target space the Chevalley-Eilenberg complex of the super-Poincaré algebra which, as we demonstrate, admits an invariant presymplectic structure of degree $3$. This data encodes a full-scale Batalin-Vilkovisky formulation of the system, including a concise form of the BV master action. The important feature of (presymplect…

The Properties of Non-Potential Magnetic Field Parameters in a Super-Active Region with Complex Structures and Strong Solar Flares
Liu Suo, Shahid Idrees, Dian Liu, Shuguan Zeng
https://arxiv.org/abs/2506.13022

The Properties of Non-Potential Magnetic Field Parameters in a Super-Active Region with Complex Structures and Strong Solar Flares
In this study, the non-potential magnetic field parameters of active region NOAA 9077 are investigated; this AR experienced a super-strong X5.7 solar flare. Using advanced extrapolation techniques, the 3D magnetic field structure from vector magnetograms is obtained from the Solar Magnetic Field Telescope (SMFT) at Huairou Solar Observing Station (HSOS). Then various non-potential parameters are calculated, including current density, shear angle, quasi-separatrix layers (QSLs), twist, and field…

Unraveled origin of the multi-directional and super wide optical-response found on metal/n-Si
Takanari Yasuia, Kazuya Nakayama
https://arxiv.org/abs/2505.18678

Unraveled origin of the multi-directional and super wide optical-response found on metal/n-Si
The optical responses for UV to NIR and muti-directional photo current have been found on Au (metal) on n-Si device. The unique phenomena have been unresolved since the first sample fabricated in 2007. The self organized sub-micron metal with various crystal faces was supposed to activate as an optical wave guide into Si surface. This, however, is insufficient to explain the unique features above. Thus, for more deep analysis, returning to consider the Si-band structure, indirect/direct transit…

Analytic Theory on the Space of Blaschke Products: Simultaneous Uniformization and Pressure Metric
Yan Mary He, Homin Lee, Insung Park
https://arxiv.org/abs/2507.17077 https://

Analytic Theory on the Space of Blaschke Products: Simultaneous Uniformization and Pressure Metric
In this paper, we study complex analytic aspects of the moduli space $\Bcal_d^{fm}$ of degree $d\ge2$ fixed-point-marked Blaschke products. We define a complex structure on $\Bcal_d^{fm}$ and prove the simultaneous uniformization theorem for fixed-point-marked quasi-Blaschke products. As an application, we show that the pressure semi-norms on the space of Blaschke products are non-degenerate outside of the super-attracting locus $\mathcal{SA}^{fm}_d$, which is a codimension-1 subspace of $\Bcal…

Linearly Polarized Photon Fusion as a Precision Probe of the Tau Lepton Dipole Moments at Lepton Colliders
Ding Yu Shao, Hao Xiang, Fang Xu, Bin Yan, Cheng Zhang
https://arxiv.org/abs/2506.15245

Linearly Polarized Photon Fusion as a Precision Probe of the Tau Lepton Dipole Moments at Lepton Colliders
We present a comprehensive investigation into the anomalous magnetic dipole moment ($a_τ$) and electric dipole moment ($d_τ$) of the $τ$ lepton using the $γγ\to τ^+τ^-$ process at future lepton colliders, with the Super Tau-Charm Facility serving as a benchmark. By employing transverse-momentum-dependent factorization, we introduce novel observables derived from $\cos2ϕ$, $\sin2ϕ$, and $\cos4ϕ$ azimuthal asymmetries to precisely probe the $τ$ lepton's electromagnetic structure. Our a…

Four-dimensional spectrum generating algebra for the superstring
Renann Lipinski Jusinskas, Aravindhan Srinivasan
https://arxiv.org/abs/2507.22973 https://…

Four-dimensional spectrum generating algebra for the superstring
We derive the spectrum generating algebra for the hybrid string with manifest $\mathcal{N}=1$ super Poincaré symmetry in $\mathbb{R}^{3,1}\times\mathbb{R}^{6}$. Our DDF operators establish a one-to-one correspondence with the conventional superstring spectrum, while making its four-dimensional structure manifest. We also discuss part of the antifield spectrum, and introduce a simple realization of the supersymmetry charges involving the $\mathbb{R}^{6}$ directions. As an application, we algebr…

Three-point functions from integrability in $\mathcal{N}=2$ orbifold theories
Dennis le Plat, Torben Skrzypek
https://arxiv.org/abs/2506.21323 https://

Three-point functions from integrability in $\mathcal{N}=2$ orbifold theories
Besides solving the spectral problem of $\mathcal{N}=4$ Super-Yang-Mills (SYM) theory, integrability also provides us with tools to compute the structure constants of the theory, most prominently through the hexagon formalism. We show that, with minor modifications, this formalism can also be applied to orbifolds of $\mathcal{N}=4$ SYM theory, which are integrable theories in their own right. To substantiate this claim, we test our results against a direct gauge-theory calculation at tree-level…