Tootfinder

Massive Retrograde Moons May Survive During Different Hot Jupiters' Migration Scenario
Yangjun Pu, Chenyang Li, Bohang Zhu
https://arxiv.org/abs/2509.13263 https://

Massive Retrograde Moons May Survive During Different Hot Jupiters' Migration Scenario
Searching for exomoons is attempted via Kepler and TESS, but none is confirmed. Theoretically, similar with Jupiter, the gas giants are possible to generate moons. However, HJs which are considered to form outside and then move close to the star are thought not easy to sustain the original moons via dynamical effects. In this paper, we assume the HJ to form at 1 AU and move inward via disk migration or migration due to planet secular coplanar. Then we simulate the dynamics of exomoon-planet sys…

Retrospective score tests versus prospective score tests for genetic association with case-control data
Yukun Liu, Pengfei Li, Lei Song, Kai Yu, Jing Qin
https://arxiv.org/abs/2507.19893

Retrospective score tests versus prospective score tests for genetic association with case-control data
Since the seminal work by Prentice and Pyke (1979), the prospective logistic likelihood has become the standard method of analysis for retrospectively collected case-control data, in particular for testing the association between a single genetic marker and a disease outcome in genetic case-control studies. When studying multiple genetic markers with relatively small effects, especially those with rare variants, various aggregated approaches based on the same prospective likelihood have been de…

Tidal disruption events in active galactic nuclei: on orbital inclination and Schwarzschild apsidal precession
Minghao Zhang, Wenda Zhang, Hongping Deng, Hengxiao Guo, Jingbo Sun
https://arxiv.org/abs/2509.07535

Tidal disruption events in active galactic nuclei: on orbital inclination and Schwarzschild apsidal precession
Tidal disruption events (TDEs) in active galactic nuclei (AGNs) mark a regime where traditional vacuum models fail to capture the full dynamics, especially due to interaction between stellar debris and pre-existing accretion disks. We perform meshless hydrodynamic simulations incorporating both general relativistic (GR) effects and radiative cooling to study TDEs in AGNs with different orbital inclinations ($θ_{\rm inc}$) of the disrupted star, ranging from projected prograde to retrograde orb…

Impact of near-degeneracy effects on linear rotational inversions for red-giant stars
F. Ahlborn, J. M. Joel Ong, J. Van Beeck, E. P. Bellinger, S. Hekker, S. Basu
https://arxiv.org/abs/2509.26319

Impact of near-degeneracy effects on linear rotational inversions for red-giant stars
Accurate estimates of internal red-giant rotation rates are a crucial ingredient for constraining and improving current models of stellar rotation. Asteroseismic rotational inversions are a method to estimate these internal rotation rates. In this work, we focus on the observed differences in the rotationally-induced frequency shifts between prograde and retrograde modes, which were ignored in previous works when estimating internal rotation rates of red giants using inversions. We systematical…