Now showing items 1-8 of 8

  • Capacitive sensing of test mass motion with nanometer precision over millimeter-wide sensing gaps for space-borne gravitational reference sensors 

    Audley, H.; Auger, G.; Baird, J.; Binetruy, P.; Caleno, M.; Cesarini, A.; Diepholz, I; Dixon, G; Dolesi, R; Ferraioli, L.; Heinzel, G; Hollington, D.; Karnesis, N.; Martín-Porqueras, F.; Fernandez Sopuerta, Carlos; Texier, D.; Vitale, S.; Wanner, G; Ward, Harold; Ramos Castro, Juan José (2017-09-26)
    Article
    Open Access
    We report on the performance of the capacitive gap-sensing system of the Gravitational Reference Sensor on board the LISA Pathfinder spacecraft. From in-flight measurements, the system has demonstrated a performance, down ...
  • Characteristics and energy dependence of recurrent galactic cosmic-ray flux depressions and of a forbush decrease with LISA Pathfinder 

    Armano, M.; Audley, H.; Baird, J.; Bassan, M.; Benella, S.; Lobo, J.A.; Ramos Castro, Juan José (2018-02-16)
    Article
    Open Access
    Galactic cosmic-ray (GCR) energy spectra observed in the inner heliosphere are modulated by the solar activity, the solar polarity and structures of solar and interplanetary origin. A high counting rate particle detector ...
  • Charge-induced force noise on free-falling test masses: results from LISA pathfinder 

    Armano, M.; Audley, H.; Auger, G.; Baird, J.; Binetruy, P.; Ramos Castro, Juan José (2017-04-26)
    Article
    Open Access
    We report on electrostatic measurements made on board the European Space Agency mission LISA Pathfinder. Detailed measurements of the charge-induced electrostatic forces exerted on free-falling test masses (TMs) inside the ...
  • Constraints on LISA pathfinder's self-gravity: design requirements, estimates and testing procedures 

    Armano, M.; Audley, H.; Auger, G.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Brandt, N.; Bursi, A.; Caleno, M.; Cavalleri, A.; Cesarini, A.; Cruise, M.; Danzmann, K.; Ramos Castro, Juan José (2016-11-08)
    Article
    Open Access
    LISA Pathfinder satellite was launched on 3 December 2015 toward the Sun–Earth first Lagrangian point (L1) where the LISA Technology Package (LTP), which is the main science payload, will be tested. LTP achieves measurements ...
  • Forbush decreases and <2 day GCR flux non-recurrent variations studied with LISA pathfinder 

    Armano, M.; Audley, H.; Baird, J.; Benella, S.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Ramos Castro, Juan José (Institute of Physics (IOP), 2019-04-01)
    Article
    Open Access
    Non-recurrent short-term variations of the galactic cosmic-ray (GCR) flux above 70 MeV n-1 were observed between 2016 February 18 and 2017 July 3 on board the European Space Agency LISA Pathfinder (LPF) mission orbiting ...
  • LISA Pathfinder platform stability and drag-free performance 

    Armano, M.; Audley, H.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Ramos Castro, Juan José (American Physical Society (APS), 2019-04-15)
    Article
    Open Access
    The science operations of the LISA Pathfinder mission have demonstrated the feasibility of sub-femto-g free fall of macroscopic test masses necessary to build a gravitational wave observatory in space such as LISA. While ...
  • Measuring the galactic cosmic ray flux with the LISA Pathfinder radiation monitor 

    Armano, M.; Audley, H.; Baird, J.; Ramos Castro, Juan José (2018-01-31)
    Article
    Restricted access - publisher's policy
    Test mass charging caused by cosmic rays will be a significant source of acceleration noise for space-based gravitational wave detectors like LISA. Operating between December 2015 and July 2017, the technology demonstration ...
  • Precision charge control for isolated free-falling test masses: LISA pathfinder results 

    Armano, M.; Audley, H.; Baird, J.; Ramos Castro, Juan José (American Physical Society (APS), 2018-09-11)
    Article
    Open Access
    The LISA Pathfinder charge management device was responsible for neutralizing the cosmic-ray-induced electric charge that inevitably accumulated on the free-falling test masses at the heart of the experiment. We present ...