The free-fall mode experiment on LISA Pathfinder: first results

被引：1

作者：

Giusteri, Roberta ^{[1
,2
]}

Armano, M. ^{[3
]}

Audley, H. ^{[4
,5
]}

Auger, G. ^{[6
]}

Baird, J. ^{[7
]}

Bassan, M. ^{[8
,9
]}

Binetruy, P. ^{[6
]}

Born, M. ^{[4
,5
]}

Bortoluzzi, D. ^{[10
,11
]}

Brandt, N. ^{[12
]}

Caleno, M. ^{[13
]}

Cavalleri, A. ^{[14
,15
]}

Cesarini, A. ^{[14
,15
]}

Cruise, M. ^{[16
]}

Danzmann, K. ^{[4
,5
]}

de Deus Silva, M. ^{[3
]}

De Rosa, R. ^{[17
,18
]}

Di Fiore, L. ^{[18
]}

Diepholz, I. ^{[4
,5
]}

Dolesi, R. ^{[14
,15
]}

Dunbar, N. ^{[19
]}

Ferraioli, L. ^{[20
]}

Ferroni, V. ^{[14
,15
]}

Fitzsimons, E. ^{[21
]}

Flatscher, R. ^{[12
]}

Freschi, M. ^{[3
]}

Marrirodriga, C. Garcia ^{[13
]}

Gerndt, R. ^{[12
]}

Gesa, L. ^{[22
]}

Gibert, F. ^{[14
,15
]}

Giardini, D. ^{[20
]}

Giusteri, R. ^{[14
,15
]}

Grado, A. ^{[17
,18
]}

Grimani, C. ^{[23
]}

Grzymisch, J. ^{[13
]}

Harrison, I. ^{[24
]}

Heinzel, G. ^{[4
,5
]}

Hewitson, M. ^{[4
,5
]}

Hollington, D. ^{[7
]}

Hoyland, D. ^{[16
]}

Hueller, M. ^{[14
,15
]}

Inchauspe, H. ^{[6
]}

Jennrich, O. ^{[13
]}

Jetzer, P. ^{[25
]}

Johlander, B. ^{[13
]}

Karnesis, N. ^{[4
,5
]}

Kaune, B. ^{[4
,5
]}

Korsakova, N. ^{[4
,5
]}

Killow, C. ^{[26
]}

Lobo, A. ^{[22
]}

机构：

[1] Univ Trento, Dipartimento Fis, I-38123 Povo, Trento, Italy

[2] INFN, Trento Inst Fundamental Phys & Applicat, I-38123 Povo, Trento, Italy

[3] European Space Agcy, European Space Astron Ctr, Madrid 28692, Spain

[4] Max Planck Inst Gravitat Phys, Albert Einstein Inst, Callinstr 38, D-30167 Hannover, Germany

[5] Leibniz Univ Hannover, Callinstr 38, D-30167 Hannover, Germany

[6] Univ Paris Diderot, APC, CNRS IN2P3, CEA Irfu,Obs Paris,Sorbonne Paris Cite, Paris, France

[7] Imperial Coll London, High Energy Phys Grp, Blackett Lab, Phys Dept, Prince Consort Rd, London SW7 2BW, England

[8] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[9] INFN, Sez Roma Tor Vergata, I-00133 Rome, Italy

[10] Univ Trento, Dept Ind Engn, Via Sommar 9, I-38123 Trento, Italy

[11] INFN, Trento Inst Fundamental Phys & Applicat, Rome, Italy

[12] Airbus Def & Space, Claude Dornier Str, D-88090 Immenstaad, Germany

[13] European Space Agcy, European Space Technol Ctr, Keplerlaan 1, NL-2200 AG Noordwijk, Netherlands

[14] Univ Trento, Dipartimento Fis, I-38123 Povo, Trento, Italy

[15] INFN, Trento Inst Fundamental Phys & Applicat, I-38123 Povo, Trento, Italy

[16] Univ Birmingham, Dept Phys & Astron, Birmingham, W Midlands, England

[17] INAF, Osservatorio Astron Capodimonte, I-80131 Naples, Italy

[18] INFN, Sez Napoli, I-80126 Naples, Italy

[19] Airbus Def & Space, Gunnels Wood Rd, Stevenage SG1 2AS, Herts, England

[20] Swiss Fed Inst Technol, Inst Geophys, Sonneggstr 5, CH-8092 Zurich, Switzerland

[21] Royal Observ, UK Astron Technol Ctr, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

[22] Inst Ciencies Espai CSIC IEEC, Campus UAB,Carrer Can Magrans S-N, Cerdanyola Del Valles 08193, Spain

[23] Univ Urbino Carlo Bo, DISPEA, INFN, Via S Chiara 27, I-61029 Urbino, Italy

[24] European Space Agcy, European Space Operat Ctr, D-64293 Darmstadt, Germany

[25] Univ Zurich, Phys Inst, Winterthurerstr 190, CH-8057 Zurich, Switzerland

[26] Univ Glasgow, Sch Phys & Astron, SUPA, Inst Gravitat Res, Glasgow G12 8QQ, Lanark, Scotland

[27] Univ Politecn Cataluna, Dept Engn Elect, ES-08034 Barcelona, Spain

[28] Co Gen Spazio, CGS SpA, Via Gallarate 150, I-20151 Milan, Italy

[29] NASA, Goddard Space Flight Ctr, Gravitat Astrophys Lab, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA

[30] Univ Firenze, Dipartimento Fis & Astron, I-50019 Florence, Italy

[31] INFN, Sez Firenze, I-50019 Florence, Italy

来源：

11TH INTERNATIONAL LISA SYMPOSIUM | 2017年 / 840卷

关键词：

D O I：

10.1088/1742-6596/840/1/012005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The LISA Pathfinder space mission is testing the critical experimental challenge for LISA by measuring the differential acceleration between two free-falling test masses inside a single co-orbiting spacecraft at a level of sub-femto-g for frequencies down to 0.1mHz. In LPF it is necessary that one test mass (TM) is electrostatically forced to follow the orbit of the other TM. This force represents a noise source in differential acceleration at frequencies below 1mHz. The free-fall mode experiment has been performed in order to reduce this source of noise: the actuation is limited to short impulses on one TM, so that it is in free fall between two successive kicks, while the other TM is drag-free. The free-fall mode thus provides a different technique for measuring the differential TM acceleration without the added force noise and calibration issues introduced by the actuator. Data analysis challenge is related to the presence of the kicks: they represent a high-noise contribution and need to be removed, thus leaving short gaps in data. This article presents preliminary data of the LPF free-fall measurement campaign and describes the three data analysis techniques developed to mitigate the presence of gaps.

引用

页数：10

共 50 条

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