Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aps..may.j1506s&link_type=abstract
American Physical Society, APS/AAPT Joint Meeting, May 2-5, 1996, abstract #J15.06
Astronomy and Astrophysics
Astrophysics
Scientific paper
The Laser Interferometer Space Antenna (LISA) is a mission designed for detailed studies of gravitational waves with frequencies of roughly 0.1 mHz to 1 Hz. Gravitational waves will be detected by interferometrically monitoring the relative distances between proof masses in different spacecraft, separated by 5× 10^6 km. LISA will detect strains as low as 10-23 with a 1 yr observation time and a S/N ratio of 5. The sensitivity will be sufficient to detect many gravitational wave sources which cannot be readily observed by any other means. The 3-arm interferometer consists of 6 spacecraft orbiting the Sun, with two at each vertex of an equilateral triangle. Proof mass disturbances are kept small by a drag-free system and the benign environment of solar orbit. LISA was selected in 1994 as a Cornerstone mission in the proposed ESA Horizon 2000 Plus program. Technology development studies for LISA are being started by ESA. Investigations of possible US contributions to LISA currently are in progress under a NASA program for studies of new mission concepts in astrophysics.
Bender Peter L.
Faller James E.
Folkner William M.
Stebbins Robin Tuck
Ward Harry
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