Tootfinder

Three-point functions in critical loop models
Jesper Lykke Jacobsen, Rongvoram Nivesvivat, Sylvain Ribault, Paul Roux
https://arxiv.org/abs/2510.04701 https://

Three-point functions in critical loop models
In two-dimensional models of critical non-intersecting loops, there are $\ell$-leg fields that insert $\ell\in\mathbb{N}^*$ open loop segments and can have nonzero conformal spins, and diagonal fields that change the weights of closed loops. We conjecture an exact formula for 3-point functions of such fields on the sphere. In the cases of diagonal or spinless 2-leg fields, the conjecture agrees with known results from Conformal Loop Ensembles. We numerically compute 3-point functions in loop …

Probing the Origin of X-ray Flares in the Low-Hard State of GRS 1915 105 Using AstroSat and NuSTAR
Shahzada Akhter, Sajad Boked, Bari Maqbool, Ranjeev Misra, V. Jithesh
https://arxiv.org/abs/2509.19546

Probing the Origin of X-ray Flares in the Low-Hard State of GRS 1915+105 Using AstroSat and NuSTAR
We performed a detailed time-resolved spectral study of GRS 1915+105 during its low-flux rebrightening phase using the broadband capabilities of AstroSat and NuSTAR in May-June 2019. The AstroSat light curves revealed erratic X-ray flares with count rates rising by a factor of $\sim$5. Flares with simultaneous LAXPC and SXT coverage were segmented and fitted using two degenerate but physically motivated spectral models: a reflection-dominated model (hereafter Model A) and an absorption-dominate…

Quasi-Periodic Oscillations due to radiative feedback mechanism between the disc and corona
Akash Garg, Ranjeev Misra, Somasri Sen
https://arxiv.org/abs/2507.12111

Quasi-Periodic Oscillations due to radiative feedback mechanism between the disc and corona
Compact object systems exhibit Quasi-Periodic Oscillations (QPOs) as revealed by peaked features in their power density spectra. It has been known that stochastic variations in the accretion disc will propagate to the corona after a time delay and that the hard X-rays from the corona impinge back on the disc, giving reflection spectral features. Here, we show that the combination of these two effects makes a simple radiative feedback system between the corona and the disc, which naturally produ…