3 papers
astro-ph.CO2023
Linear polarization of the stochastic gravitational-wave background with pulsar timing arrays
Neha Anil Kumar, Mesut Çalışkan, Gabriela Sato-Polito +2
Pulsar-timing collaborations have recently reported evidence for the detection of an isotropic stochastic gravitational-wave background consistent with one sourced by a population…
astro-ph.CO2023
Reconstructing patchy helium reionization using the cosmic microwave background and large-scale structure
Mesut Çalışkan, Neha Anil Kumar, Selim C. Hotinli +1
The intergalactic helium became fully ionized by the end of cosmic noon (). Similarly to the reionization of hydrogen, helium reionization is expected to be patchy, driven…
astro-ph.CO2023
Efficient Computation of Overlap Reduction Functions for Pulsar Timing Arrays
Neha Anil Kumar, Marc Kamionkowski
Pulsar timing arrays seek and study gravitational waves (GWs) through the angular two-point correlation function of timing residuals they induce in pulsars. The two-point correlati…