Impact of solar irradiance pressure on LPF acceleration noise

Investigate and quantify the impact of solar irradiance pressure on acceleration noise measured by LISA Pathfinder, assessing whether it produces measurable correlations or effects greater than those from solar wind.

Background

Beyond solar wind, solar irradiance pressure is identified as a potentially more significant noise source for LPF and future LISA. While prior modeling work has considered irradiance, the authors explicitly note that this effect has not yet been analyzed in their paper.

Establishing the magnitude and characteristics of irradiance-induced forces on LPF is important for a comprehensive understanding of space-weather contributions to acceleration noise and for informing mitigation strategies in the LISA mission.