Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1129-1136 |
| Seitenumfang | 8 |
| Fachzeitschrift | Advances in space research |
| Jahrgang | 25 |
| Ausgabenummer | 6 |
| Frühes Online-Datum | 17 Feb. 2000 |
| Publikationsstatus | Veröffentlicht - 2000 |
Abstract
More than 80 years ago, Einstein has predicted that accelerated masses will emit gravitational waves, propagating distortions of the spacetime fabric. The gravitational wave spectrum of known and expected sources covers many decades in frequency. While sources in the audio-frequency regime above 1 Hz are accessible to ground-based detectors, sources in the low-frequency regime can only be observed from space because of the unshieldable background of Newtonian gravitational noise. LISA is a laser-interferometric gravitational wave detector in space designed to observe gravitational wave signals from galactic as well as cosmological sources in the frequency range from 0.1 mHz to 1 Hz. LISA comprises a cluster of three spacecraft at the corners of an equilateral triangle of 5 Mio km size. The cluster is in an earth-like heliocentric orbit trailing the earth by 20 degrees. Each spacecraft carries lasers and free-flying proof masses and is kept on a purely inertial orbit by drag-free technology using field emission electric propulsion.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Luft- und Raumfahrttechnik
- Physik und Astronomie (insg.)
- Astronomie und Astrophysik
- Erdkunde und Planetologie (insg.)
- Geophysik
- Erdkunde und Planetologie (insg.)
- Atmosphärenwissenschaften
- Erdkunde und Planetologie (insg.)
- Astronomie und Planetologie
- Erdkunde und Planetologie (insg.)
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in: Advances in space research, Jahrgang 25, Nr. 6, 2000, S. 1129-1136.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - LISA mission overview
AU - Danzmann, K.
PY - 2000
Y1 - 2000
N2 - More than 80 years ago, Einstein has predicted that accelerated masses will emit gravitational waves, propagating distortions of the spacetime fabric. The gravitational wave spectrum of known and expected sources covers many decades in frequency. While sources in the audio-frequency regime above 1 Hz are accessible to ground-based detectors, sources in the low-frequency regime can only be observed from space because of the unshieldable background of Newtonian gravitational noise. LISA is a laser-interferometric gravitational wave detector in space designed to observe gravitational wave signals from galactic as well as cosmological sources in the frequency range from 0.1 mHz to 1 Hz. LISA comprises a cluster of three spacecraft at the corners of an equilateral triangle of 5 Mio km size. The cluster is in an earth-like heliocentric orbit trailing the earth by 20 degrees. Each spacecraft carries lasers and free-flying proof masses and is kept on a purely inertial orbit by drag-free technology using field emission electric propulsion.
AB - More than 80 years ago, Einstein has predicted that accelerated masses will emit gravitational waves, propagating distortions of the spacetime fabric. The gravitational wave spectrum of known and expected sources covers many decades in frequency. While sources in the audio-frequency regime above 1 Hz are accessible to ground-based detectors, sources in the low-frequency regime can only be observed from space because of the unshieldable background of Newtonian gravitational noise. LISA is a laser-interferometric gravitational wave detector in space designed to observe gravitational wave signals from galactic as well as cosmological sources in the frequency range from 0.1 mHz to 1 Hz. LISA comprises a cluster of three spacecraft at the corners of an equilateral triangle of 5 Mio km size. The cluster is in an earth-like heliocentric orbit trailing the earth by 20 degrees. Each spacecraft carries lasers and free-flying proof masses and is kept on a purely inertial orbit by drag-free technology using field emission electric propulsion.
UR - http://www.scopus.com/inward/record.url?scp=0000922928&partnerID=8YFLogxK
U2 - 10.1016/S0273-1177(99)00973-4
DO - 10.1016/S0273-1177(99)00973-4
M3 - Article
AN - SCOPUS:0000922928
VL - 25
SP - 1129
EP - 1136
JO - Advances in space research
JF - Advances in space research
SN - 0273-1177
IS - 6
ER -