Speaker
Sonali Verma
(ULB, Brussels)
Description
Interplanetary missions can provide unique opportunities for non-planetary science, such as the detection of low-frequency gravitational waves as well as the measurement of local dark matter (DM) in the Solar System. This can be achieved via Doppler tracking of the spacecraft’s radio signal system. DM substructure in the form of Primordial Black Holes (PBH) passing near the Earth–spacecraft line of sight can induce a small metric perturbation. This results in a Shapiro time delay, measurable as a shift in the emitted frequency of the radio signal. In this talk, I will discuss the sensitivity of Doppler tracking data of past (Cassini) and future (Uranus Orbiter Probe) interplanetary space missions to such PBH-induced frequency shifts.
Authors
Diego Blas
(IFAE, Barcelona)
Sonali Verma
(ULB, Brussels)
