3 papers
astro-ph.GA2026
Mapping the Milky Way in Six Dimensions: A contiguous, homogenised, phase-space catalogue of \textit{Gaia} DR3 tracers up to 250 kpc
Sutirtha Mukherjee, Amogh Srivastav, Subhabrata Majumdar
We present a comprehensive, homogenised catalogue of stellar sources with full 6D phase-space information, spanning Galactocentric distances from the inner galaxy…
gr-qc2026
Anomaly quenching and dynamical cooling of Hawking evaporation in Horndeski gravity
Amogh Srivastav, S. Shankaranarayanan
We investigate the semiclassical Hawking evaporation of a two-dimensional Callan-Giddings-Harvey-Strominger (CGHS) black hole perturbed by first-order Horndeski scalar-tensor coupl…
astro-ph.CO2026
CMBComp: A Simple and Accurate Compressed CMB Likelihood for Dark Energy, Curvature, and Massive Neutrinos
Amogh Srivastav, Prakhar Bansal, Dragan Huterer
We present CMBComp, a compact and accurate compressed cosmic microwave background (CMB) likelihood that captures the dominant geometric information of the full CMB likelihood deriv…