Tootfinder

Empirical Studies of Large Scale Environment Scanning by Consumer Electronics
Mengyuan Wang, Yang Liu, Haopeng Wang, Haiwei Dong, Abdulmotaleb El Saddik
https://arxiv.org/abs/2506.14771

Empirical Studies of Large Scale Environment Scanning by Consumer Electronics
This paper presents an empirical evaluation of the Matterport Pro3, a consumer-grade 3D scanning device, for large-scale environment reconstruction. We conduct detailed scanning (1,099 scanning points) of a six-floor building (17,567 square meters) and assess the device's effectiveness, limitations, and performance enhancements in diverse scenarios. Challenges encountered during the scanning are addressed through proposed solutions, while we also explore advanced methods to overcome them more e…

Geometric Considerations in Hot Jupiter Magnetic Drag Models
Duncan A. Christie, Tom M. Evans-Soma, Nathan J. Mayne, Krisztian Kohary
https://arxiv.org/abs/2507.08511

Geometric Considerations in Hot Jupiter Magnetic Drag Models
Magnetic fields are expected to impact the atmospheric dynamics of hot and ultra-hot Jupiters due to their increased ionization fractions, compared to that of cooler exoplanets, but our ability to model these magnetic processes is limited by the different coupling regimes between the day and night sides of the planets. One common approach is to approximate the magnetic interactions as a drag acting on the atmosphere. In this work, we examine, within the context of this drag approximation, the i…

Exploring the role of accretion disk geometry in shaping black hole shadows
Zi-Liang Wang
https://arxiv.org/abs/2506.21148 https://ar…

Exploring the role of accretion disk geometry in shaping black hole shadows
We study black hole imaging in the context of geometrically thick accretion disks in Schwarzschild spacetime. By decomposing the emitting region into a set of one-dimensional luminous segments, each characterized by its inclination angle and inner radius, we construct transfer functions that capture key image features-namely, the direct image, lensing ring, and photon ring. This approach allows a unified treatment of disk geometry and viewing angle. We explore three regimes: optically thin, opt…