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Laser interferometer for spaceborne mapping of the Earth's gravity field

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Marina Dehne
  • Felipe Guzmn Cervantes
  • Benjamin Sheard
  • Gerhard Heinzel
  • Karsten Danzmann

Organisationseinheiten

Externe Organisationen

  • Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)

Details

OriginalspracheEnglisch
Aufsatznummer012023
FachzeitschriftJournal of Physics: Conference Series
Jahrgang154
Frühes Online-Datum20 Apr. 2009
PublikationsstatusVeröffentlicht - 2009
Veranstaltung7TH INTERNATIONAL LISA SYMPOSIUM - Barcelona, Spanien
Dauer: 16 Juni 200820 Juni 2008

Abstract

The Gravity Recovery and Climate Experiment (GRACE) is one of the present missions to map the Earth's gravity field. The aim of a GRACE follow-on mission is to map the gravitational field of the Earth with higher resolution over at least 6 years. This should lead to a deeper insight into geophysical processes of the Earth's system. One suggested detector for this purpose consists of two identical spacecraft carrying drag-free test masses in a low Earth orbit at an altitude of the order of 300 km, following each other with a distance on the order of 50 to 100 km. Changes in the Earth's gravity field will induce distance fluctuations between two test masses on separate spacecraft. These variations in the frequency range 1 to 100 mHz are to be monitored by a laser interferometer with nanometer precision. We present preliminary results of a heterodyne interferometer configuration using polarising optics, demonstrating the required phase sensitivity.

ASJC Scopus Sachgebiete

Zitieren

Laser interferometer for spaceborne mapping of the Earth's gravity field. / Dehne, Marina; Cervantes, Felipe Guzmn; Sheard, Benjamin et al.
in: Journal of Physics: Conference Series, Jahrgang 154, 012023, 2009.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Dehne, M, Cervantes, FG, Sheard, B, Heinzel, G & Danzmann, K 2009, 'Laser interferometer for spaceborne mapping of the Earth's gravity field', Journal of Physics: Conference Series, Jg. 154, 012023. https://doi.org/10.1088/1742-6596/154/1/012023
Dehne, M., Cervantes, F. G., Sheard, B., Heinzel, G., & Danzmann, K. (2009). Laser interferometer for spaceborne mapping of the Earth's gravity field. Journal of Physics: Conference Series, 154, Artikel 012023. https://doi.org/10.1088/1742-6596/154/1/012023
Dehne M, Cervantes FG, Sheard B, Heinzel G, Danzmann K. Laser interferometer for spaceborne mapping of the Earth's gravity field. Journal of Physics: Conference Series. 2009;154:012023. Epub 2009 Apr 20. doi: 10.1088/1742-6596/154/1/012023
Dehne, Marina ; Cervantes, Felipe Guzmn ; Sheard, Benjamin et al. / Laser interferometer for spaceborne mapping of the Earth's gravity field. in: Journal of Physics: Conference Series. 2009 ; Jahrgang 154.
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