日本語
 
Help Privacy Policy ポリシー/免責事項
  詳細検索ブラウズ

アイテム詳細


公開

成果報告書

In-depth analysis of LISA Pathfinder performance results: time evolution, noise projection, physical models, and implications for LISA

MPS-Authors
/persons/resource/persons41581

Audley,  H.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40430

Born,  M.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40437

Danzmann,  K.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40441

Diepholz,  I.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons231085

Giusteri,  R.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons231095

Hartig,  M.-S.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40460

Heinzel,  G.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40525

Hewitson,  M.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons215671

Kaune,  B.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons215675

Paczkowski,  S.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40486

Reiche,  J.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40507

Wanner,  G.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons231196

Wissel,  L.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons231198

Wittchen,  A.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

External Resource
There are no locators available
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
フルテキスト (公開)

2405.05207.pdf
(プレプリント), 7MB

付随資料 (公開)
There is no public supplementary material available
引用

Armano, M., Audley, H., Baird, J., Binetruy, P., Born, M., Bortoluzzi, D., Castelli, E., Cavalleri, A., Cesarini, A., Chiavegato, V., Cruise, A. M., Bosco, D. D., Danzmann, K., Silva, M. D. D., Diepholz, I., Dixon, G., Dolesi, R., Ferraioli, L., Ferroni, V., Fitzsimons, E. D., Freschi, M., Gesa, L., Giardini, D., Gibert, F., Giusteri, R., Grimani, C., Grzymisch, J., Harrison, I., Hartig, M.-S., Heinzel, G., Hewitson, M., Hollington, D., Hoyland, D., Hueller, M., Inchauspé, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Korsakova, N., Killow, C. J., Lobo, J. A., Lopez-Zaragoza, J. P., Maarschalkerweerd, R., Mance, D., Martın, V., Martin-Polo, L., Martin-Porqueras, F., Martino, J., McNamara, P. W., Mendes, J., Mendes, L., Meshksar, N., Nofrarias, M., Paczkowski, S., Perreur-Lloyd, M., Petiteau, A., Plagnol, E., Ramos-Castro, J., Reiche, J., Rivas, F., Robertson, D. I., Russano, G., Sala, L., Slutsky, J., Sopuerta, C. F., Sumner, T., Texier, D., Thorpe, J. I., Vetrugno, D., Vitale, S., Wanner, G., Ward, H., Wass, P., Weber, W. J., Wissel, L., Wittchen, A., Zanoni, C., & Zweifel, P. (in preparation). In-depth analysis of LISA Pathfinder performance results: time evolution, noise projection, physical models, and implications for LISA.


引用: https://hdl.handle.net/21.11116/0000-000F-4D7C-1
要旨
We present an analysis of the LISA Pathfinder differential acceleration
performance over the entire mission . We show that the Brownian noise level,
detected for frequencies $f\gtrsim \SI{1}{mHz}$, has been evolving consistently
with the outgassing of a single gaseous species, with an activation temperature
of $(7.0\pm 0.2)\,\text{kK}$. In excess to the Brownian noise, the acceleration
amplitude spectral density (ASD) always shows a sub-mHz tail which is
reasonably well fit, between $f=\SI{36}{\micro\hertz}$ and
$\SI{1}{\milli\hertz}$, to $\widetilde{S}_{\Delta g}^{1/2}(1\, \text{mHz}/f)$.
A Bayesian estimate of $\widetilde{S}_{\Delta g}^{1/2}$ on a partition of the
entire set of measurements in 27 data stretches, each 2.75\,d long, gives
$\widetilde{S}_{\Delta
g}^{1/2}=(1.1\pm0.3)\,\si{\femto\meter\,\second^{-2}/\rtHz}$, with no
particular time pattern over the course of the mission. The width the posterior
contains, in excess of the statistical uncertainty, a true physical fluctuation
of $\widetilde{S}_{\Delta g}^{1/2}$ from run to run, of about
$\SI{0.2}{\femto\meter\,\second^{-2}/\rtHz}$, with no correlation with specific
operating conditions. At the lowest considered frequency of
$f=\SI{18}{\micro\hertz}$, the ASD significantly deviates from the $1/f$
behavior, because of temperature fluctuations that appear to modulate a
quasi-static pressure gradient, sustained by the asymmetries of outgassing . We
also present a projection of acceleration noise on the sources for which we had
either a correlation measurement, or an estimate from dedicated
experiments.These sources account for about 40\% of the noise power the $1/f$
tail. We discuss the possible sources of the unaccounted-for fraction, present
a series of analyses that rule many of them out, and identify the possible
measures that may be taken to keep the remaining ones under control in LISA.